{"id":3930,"date":"2026-09-15T13:30:29","date_gmt":"2026-09-15T05:30:29","guid":{"rendered":"https:\/\/jkrglo.com\/?p=3930"},"modified":"2026-09-15T13:45:21","modified_gmt":"2026-09-15T05:45:21","slug":"63-37-vs-60-40-solder","status":"publish","type":"post","link":"https:\/\/jkrglo.com\/de\/63-37-vs-60-40-solder\/","title":{"rendered":"63-37-vs-60-40-solder"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3930\" class=\"elementor elementor-3930\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2197b92e e-flex e-con-boxed e-con e-parent\" data-id=\"2197b92e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-63d9be44 e-con-full e-flex e-con e-child\" data-id=\"63d9be44\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23e7bd4e elementor-widget elementor-widget-breadcrumbs\" data-id=\"23e7bd4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/jkrglo.com\/\">HOME<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-24a9843c e-flex e-con-boxed e-con e-parent\" data-id=\"24a9843c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3d8692ff e-con-full e-flex e-con e-child\" data-id=\"3d8692ff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1558e31d e-con-full e-flex e-con e-child\" data-id=\"1558e31d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-750f0992 elementor-widget elementor-widget-heading\" data-id=\"750f0992\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">63\/37 vs 60\/40 Solder: The Practical Difference, Side by Side\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2f148d1d e-con-full e-flex e-con e-child\" data-id=\"2f148d1d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1572d357 e-con-full e-flex e-con e-child\" data-id=\"1572d357\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-573558fb elementor-widget elementor-widget-post-info\" data-id=\"573558fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-c9d822a elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tJKRGLO R&amp;D Engineer\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-2bae3db elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>09\/15\/2026<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-5a82ee1 elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-clock\" viewBox=\"0 0 512 512\" 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256z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-x-twitter elementor-repeater-item-5ed3d93\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">X-twitter<\/span>\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fab-x-twitter\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8L200.7 275.5 26.8 48H172.4L272.9 180.9 389.2 48zM364.4 421.8h39.1L151.1 88h-42L364.4 421.8z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-youtube elementor-repeater-item-02bc2ba\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Youtube<\/span>\n\t\t\t\t\t\t<svg 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data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f701608 e-con-full e-flex e-con e-child\" data-id=\"f701608\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6542af0 e-con-full e-flex e-con e-child\" data-id=\"6542af0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2fc5377 elementor-widget elementor-widget-heading\" data-id=\"2fc5377\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Opening Introduction<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-60de128 e-con-full e-flex e-con e-child\" data-id=\"60de128\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0abdb44 e-con-full e-flex e-con e-child\" data-id=\"0abdb44\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-5c676d3 e-con-full e-flex e-con e-child\" data-id=\"5c676d3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-465ba62 elementor-widget elementor-widget-text-editor\" data-id=\"465ba62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><span style=\"color: #800000;\">Quick answer:<\/span><\/strong><strong>63\/37 and 60\/40 are both tin-lead solders that melt around 183\u00b0C, but they behave differently on the iron.<\/strong> 63\/37 is eutectic, so it flips from solid to liquid at a single temperature with no in-between &#8220;mushy&#8221; stage \u2014 easier to hand-solder and far less likely to throw a cold joint. 60\/40 has a ~7\u00b0C plastic range (183\u2013190\u00b0C), so a joint can shift and crack while it sets. For hand soldering and rework, grab 63\/37; 60\/40 is fine for general work and costs a little less. One thing both share: <strong>neither is RoHS-compliant \u2014 they&#8217;re both lead-based.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-85abe26 e-con-full e-flex e-con e-child\" data-id=\"85abe26\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-605dc2a e-con-full e-flex e-con e-child\" data-id=\"605dc2a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eaa9215 elementor-widget elementor-widget-text-editor\" data-id=\"eaa9215\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line 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data-page-id=\"FTK0dn2xOoWGtTxFfStcH8Mwnwc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-QPWJfGMQMdjr8Acu6YjcCqStnEf\">\n<div data-page-id=\"KfiYdmhy7oaoDfxckTZcvkEGnFb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-S8XcfB9eldMJLAcE9XUccb80nhg\">\n<div data-page-id=\"JuT0dkHDpoPyZIxwobpc711Nndh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-DLuafSf2vdycBKcAUF4cNp54nhd\">\n<div data-page-id=\"HFHjdQtszoAzwLxaGS1ceXfAn6e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-UkFHfI1kqd9aiYcVQSScSoNGn1b\">\n<div data-page-id=\"FpRbdsDEgoYJyAxgOrLctC3Bn3f\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-C9q7fl7rgd3c3IcJw7VcstYanqg\">\n<div data-page-id=\"XRQGd3IRJoLgTMxji6mcOJjIngd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-SAunfjzjRdgaZgcV7k0cvQN9nah\">\n<div data-page-id=\"NSdodkSrZox8aZxlOCWc3f2lnTd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcndzELlYLheHbHOhrPpkZaSe\">\n<p>If you&#8217;ve stood in the solder aisle wondering whether the extra tin in 63\/37 is worth the few cents, you&#8217;re not alone. The two alloys look identical on the spool and the specs overlap just enough to be confusing. They&#8217;re not the same thing, though, and the difference shows up the moment you touch the iron.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fc0b985 e-con-full e-flex e-con e-child\" data-id=\"fc0b985\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c16a8d2 e-con-full e-flex e-con e-child\" data-id=\"c16a8d2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15b14d2 elementor-widget elementor-widget-heading\" data-id=\"15b14d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What \"eutectic\" actually means\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b3a3556 e-con-full e-flex e-con e-child\" data-id=\"b3a3556\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-975c1f3 e-con-full e-flex e-con e-child\" data-id=\"975c1f3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-20d685a elementor-widget elementor-widget-text-editor\" data-id=\"20d685a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"JBZ5dy2BJoHK00xXZ9DcTqasnQ7\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\" old-record-id-CLbDfI5sWd2Pa8cYzsKcmwa2ngf\">\n<div data-page-id=\"JBZ5dy2BJoHK00xXZ9DcTqasnQ7\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-SdVtfZI05ddKGCcv4ADcOBfjnsd\">\n<div data-page-id=\"Wxr4dxqU1oxOjexTBkycBsRAn65\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-SMe1fotNqd6koNcXZqvcuHsgnpc\">\n<div data-page-id=\"GghpduTiPoktcqxMTrYcJU7MnNY\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-NVatf10TMdLonpc9teVcN6imnJe\">\n<div data-page-id=\"KEWpdkHUkol1tUx5BN4cfumGnvg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BBYCf6aRwd9ZJJcxkdhcsYiDnAg\">\n<div data-page-id=\"XXTQd2OY4omOTWxtDHicQAOfnch\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-ZROrf8LGQdI0P6cMBNQcFSJjnYe\">\n<div data-page-id=\"VKhrdeyfJoJFMzx2XXWc6RFgnIb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JhjNfcT5ud4b80cs6iecvPHkntf\">\n<div data-page-id=\"UNjMdTIfJobLnexY5cDcHnkFnXg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-U87BfUGpcdO1pqc3CbHcpNV8nuh\">\n<div data-page-id=\"UfftdQNXaoyG9OxAptacvgdBnod\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-U4JKfu7Y1diqHhcMt9UcIFopnsS\">\n<div data-page-id=\"UTVxd9ktIo5JVZxpRGacvFs9nHf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-C9TPfY21gdd7avcskYKcTrxxnPb\">\n<div data-page-id=\"SFXLdvemyoMEfKxHLRjcaki0nih\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YLDzf5tHEdzUI0c6kBXcwdJWn1d\">\n<div data-page-id=\"TxoWdjQqwoJAjbxVNHocpN9Endx\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OKOkfGfONd7PfUcnOLUcnqWmnxd\">\n<div data-page-id=\"Lqg5dPJvAoady9xIMNBccIEPnkb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-SRdxfFXoqdXCYdcUB1JcZGVWnLB\">\n<div data-page-id=\"Y5shdRtiRohuDpx9j2EcOyTjn2b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-C2JUfvxBwdFHaGcEOQoca9eXn1b\">\n<div data-page-id=\"FTK0dn2xOoWGtTxFfStcH8Mwnwc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-QPWJfGMQMdjr8Acu6YjcCqStnEf\">\n<div data-page-id=\"KfiYdmhy7oaoDfxckTZcvkEGnFb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-S8XcfB9eldMJLAcE9XUccb80nhg\">\n<div data-page-id=\"JuT0dkHDpoPyZIxwobpc711Nndh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-DLuafSf2vdycBKcAUF4cNp54nhd\">\n<div data-page-id=\"HFHjdQtszoAzwLxaGS1ceXfAn6e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-UkFHfI1kqd9aiYcVQSScSoNGn1b\">\n<div data-page-id=\"FpRbdsDEgoYJyAxgOrLctC3Bn3f\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-C9q7fl7rgd3c3IcJw7VcstYanqg\">\n<div data-page-id=\"XRQGd3IRJoLgTMxji6mcOJjIngd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-SAunfjzjRdgaZgcV7k0cvQN9nah\">\n<div data-page-id=\"NSdodkSrZox8aZxlOCWc3f2lnTd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcndzELlYLheHbHOhrPpkZaSe\">\n<p>This is the whole ballgame, so it&#8217;s worth getting right.<\/p>\n<p>\u00a0<\/p>\n<p>A pure metal melts at one exact temperature. Mix two metals and you usually get a <em>range<\/em>: the alloy starts softening at the <strong>solidus<\/strong> temperature and only becomes fully liquid at the <strong>liquidus<\/strong> temperature. In between, it&#8217;s a paste \u2014 part solid, part liquid. That in-between zone is called the <strong>plastic (or &#8220;mushy&#8221;) range<\/strong>, and it&#8217;s where joints get disturbed.<\/p>\n<p>\u00a0<\/p>\n<p>A <strong>eutectic<\/strong> alloy is the exception: it has a single, sharp melting point with no plastic range. Real eutectic tin-lead is 61.9% Sn \/ 38.1% Pb at exactly 183\u00b0C. Commercial <strong>63\/37 sits close enough that it behaves as eutectic in practice<\/strong> \u2014 it goes solid\u2192liquid in one clean step.<\/p>\n<p>\u00a0<\/p>\n<p><strong>60\/40 is not eutectic.<\/strong> Its solidus is 183\u00b0C and its liquidus is ~190\u00b0C, leaving a ~7\u00b0C window where it&#8217;s half-melted.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e09aaa e-con-full e-flex e-con e-child\" data-id=\"1e09aaa\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2d1a32 elementor-widget elementor-widget-image\" data-id=\"f2d1a32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_n99ksen99ksen99k-1024x559.jpg\" class=\"attachment-large size-large wp-image-3933\" alt=\"\" srcset=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_n99ksen99ksen99k-1024x559.jpg 1024w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_n99ksen99ksen99k-300x164.jpg 300w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_n99ksen99ksen99k-768x419.jpg 768w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_n99ksen99ksen99k.jpg 1408w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-504edfa e-con-full e-flex e-con e-child\" data-id=\"504edfa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-46bc4f1 e-con-full e-flex e-con e-child\" data-id=\"46bc4f1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-946f589 elementor-widget elementor-widget-heading\" data-id=\"946f589\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">63\/37 vs 60\/40 at a glance\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-13f204e e-con-full e-flex e-con e-child\" data-id=\"13f204e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ef8b60 elementor-widget elementor-widget-html\" data-id=\"3ef8b60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<table style=\"width:100%; border-collapse: collapse;\">\r\n  <thead>\r\n    <tr style=\"background-color:#DFDFDF;\">\r\n      <th style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Property<\/th>\r\n      <th style=\"border:1px solid #ccc; padding:8px; text-align:center;\">60\/40 (Sn60Pb40)<\/th>\r\n      <th style=\"border:1px solid #ccc; padding:8px; text-align:center;\">63\/37 (Sn63Pb37)<\/th>\r\n    <\/tr>\r\n  <\/thead>\r\n  <tbody>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Tin \/ lead<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">60% \/ 40%<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">63% \/ 37%<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Eutectic?<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">No<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Yes (effectively)<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Melting point<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">183\u2013190\u00b0C (range)<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">183\u00b0C (sharp)<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Plastic range<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">~7\u00b0C (mushy)<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">None<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Fluidity on the iron<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Good<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Better \/ wets faster<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Cold-joint risk<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Slightly higher<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Lower<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Relative cost<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Lower<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Slightly higher (more tin)<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Best for<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">General \/ through-hole \/ dip<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">Hand soldering, rework, precision<\/td>\r\n    <\/tr>\r\n    <tr>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">RoHS-compliant?<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">No (contains lead)<\/td>\r\n      <td style=\"border:1px solid #ccc; padding:8px; text-align:center;\">No (contains lead)<\/td>\r\n    <\/tr>\r\n  <\/tbody>\r\n<\/table>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7b4f54b e-con-full e-flex e-con e-child\" data-id=\"7b4f54b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5be81d6 e-con-full e-flex e-con e-child\" data-id=\"5be81d6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3800231 elementor-widget elementor-widget-heading\" data-id=\"3800231\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Where they're the same\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d0a5af e-con-full e-flex e-con e-child\" data-id=\"6d0a5af\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5ec7fb4 e-con-full e-flex e-con e-child\" data-id=\"5ec7fb4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-770e73d elementor-widget elementor-widget-text-editor\" data-id=\"770e73d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>People mix these up for a reason \u2014 they share the basics:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ec2bef6 e-con-full e-flex e-con e-child\" data-id=\"ec2bef6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e27622c e-con-full e-flex e-con e-child\" data-id=\"e27622c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c012890 elementor-widget elementor-widget-text-editor\" data-id=\"c012890\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul style=\"margin: 0 0 31px 0;\"><li><strong>Both are lead-based soft solders.<\/strong> Neither is <a href=\"https:\/\/jkrglo.com\/certifications\/\"><strong>RoHS<\/strong><\/a>-compliant, full stop. If you need lead-free, you&#8217;re looking at SAC305 (Sn96.5\/Ag3.0\/Cu0.5) or similar, not either of these.<\/li><\/ul><ul style=\"margin: 0 0 31px 0;\"><li><strong>Both start melting at 183\u00b0C<\/strong>, so your iron temperature and technique carry over between them.<\/li><\/ul><ul style=\"margin: 0 0 31px 0;\"><li><strong>Both take rosin-core or acid-core<\/strong>, work in wave soldering and reflow, and form strong, conductive joints when done right.<\/li><\/ul><ul style=\"margin: 0;\"><li><strong>Both are easy to find<\/strong> and cheap enough that solder cost is rarely the deciding factor in a project.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d242df8 e-con-full e-flex e-con e-child\" data-id=\"d242df8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-59d6b79 e-con-full e-flex e-con e-child\" data-id=\"59d6b79\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c811643 elementor-widget elementor-widget-heading\" data-id=\"c811643\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Where they actually differ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9685ed7 e-con-full e-flex e-con e-child\" data-id=\"9685ed7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7e6a6eb e-con-full e-flex e-con e-child\" data-id=\"7e6a6eb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-29c428a elementor-widget elementor-widget-text-editor\" data-id=\"29c428a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0 0 31px 0;\"><strong>The mushy zone is the big one.<\/strong> With 60\/40, if a part moves, the board flexes, or you pull the iron a beat too early while the joint is still in that 183\u2013190\u00b0C paste, you get a <em>disturbed<\/em> or cold joint \u2014 grainy, dull, unreliable. 63\/37 skips that stage entirely, so the window for screwing it up is smaller.<\/p>\n<p style=\"margin:0 0 31px 0;\"><strong>Fluidity.<\/strong> Because 63\/37 hits liquid cleanly, it wets and flows a touch faster, which means fewer solder bridges between tight pins and a neater fillet.<\/p>\n<p style=\"margin:0 0 31px 0;\"><strong>Finish.<\/strong> 63\/37 joints tend to look bright and smooth as they set; 60\/40 can look slightly duller or grainier because of that partial-solidification texture.<\/p>\n<p style=\"margin:0;\"><strong>Price.<\/strong> 63\/37 carries more tin, so it&#8217;s usually a hair more expensive per spool. For most hobbyists the gap is meaningless; for high-volume production it adds up.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-834ebf7 e-con-full e-flex e-con e-child\" data-id=\"834ebf7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f1c451 elementor-widget elementor-widget-image\" data-id=\"5f1c451\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_krvhrbkrvhrbkrvh-1024x559.jpg\" class=\"attachment-large size-large wp-image-3937\" alt=\"A macro photo comparing two soldered joints under the same lighting \u2014 one clean, shiny 63\/37 fillet and one duller, slightly grainy 60\/40 joint (a normal, *good* 60\/40 joint, not a defective one). Caption: &quot;Same iron, same skill \u2014 the 63\/37 fillet on the left sets cleaner.&quot; Don&apos;t stage a bad joint; that misleads readers.\" srcset=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_krvhrbkrvhrbkrvh-1024x559.jpg 1024w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_krvhrbkrvhrbkrvh-300x164.jpg 300w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_krvhrbkrvhrbkrvh-768x419.jpg 768w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_krvhrbkrvhrbkrvh.jpg 1408w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-030fd19 e-con-full e-flex e-con e-child\" data-id=\"030fd19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7b8d4a5 e-con-full e-flex e-con e-child\" data-id=\"7b8d4a5\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-af60057 elementor-widget elementor-widget-heading\" data-id=\"af60057\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Which should you actually use?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-649fef6 e-con-full e-flex e-con e-child\" data-id=\"649fef6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-83963d0 e-con-full e-flex e-con e-child\" data-id=\"83963d0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-754a5d5 elementor-widget elementor-widget-text-editor\" data-id=\"754a5d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>If you only keep one spool on the bench, <strong>make it 63\/37<\/strong>. The eutectic behavior is more forgiving, especially for hand soldering, through-hole rework, and any work where you&#8217;re holding the joint while it cools. It&#8217;s the alloy most pro bench techs reach for by default.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5c1f12e e-con-full e-flex e-con e-child\" data-id=\"5c1f12e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-648d4a1 e-con-full e-flex e-con e-child\" data-id=\"648d4a1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7bf5d2a elementor-widget elementor-widget-text-editor\" data-id=\"7bf5d2a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Reach for <strong>60\/40<\/strong> when:<\/p><ul><li>You&#8217;re doing high-volume dip or wave soldering and the plastic range is actually useful for the process.<\/li><\/ul><ul><li>You&#8217;re cost-sensitive on a large run and the joints aren&#8217;t precision-critical.<\/li><\/ul><ul><li>It&#8217;s simply what&#8217;s in the drawer and the job is straightforward.<\/li><\/ul><p>Either way, the mechanical strength difference is small enough that it rarely decides a real-world failure. The win with 63\/37 is consistency and fewer do-overs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-90b2eda e-con-full e-flex e-con e-child\" data-id=\"90b2eda\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-194721b e-con-full e-flex e-con e-child\" data-id=\"194721b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d926f70 elementor-widget elementor-widget-heading\" data-id=\"d926f70\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The RoHS myth (most guides get this wrong)\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23c6356 e-con-full e-flex e-con e-child\" data-id=\"23c6356\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d310977 e-con-full e-flex e-con e-child\" data-id=\"d310977\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-626b406 elementor-widget elementor-widget-text-editor\" data-id=\"626b406\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>You&#8217;ll see articles claim 63\/37 is &#8220;closer to RoHS-compliant&#8221; or safer on regulations. <strong>That&#8217;s false.<\/strong> RoHS restricts lead outright; an alloy that&#8217;s 37% lead is nowhere near compliant. The &#8220;safer&#8221; move isn&#8217;t picking 63\/37 over 60\/40 \u2014 it&#8217;s going lead-free (SAC305 and friends) when the product must meet RoHS. 63\/37&#8217;s only real edge on the regulation front is that it uses <em>slightly less<\/em> lead, which changes nothing for compliance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dd2fcf8 e-con-full e-flex e-con e-child\" data-id=\"dd2fcf8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72e2404 elementor-widget elementor-widget-image\" data-id=\"72e2404\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_xe4z3fxe4z3fxe4z-1024x559.jpg\" class=\"attachment-large size-large wp-image-3938\" alt=\"A small &quot;myth vs fact&quot; callout graphic \u2014 left: &quot;63\/37 is RoHS-compliant&quot; with a red \u2715; right: &quot;Both contain lead \u2014 neither is RoHS&quot; with a green \u2713. Great for social sharing and for catching the eye mid-article.\" srcset=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_xe4z3fxe4z3fxe4z-1024x559.jpg 1024w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_xe4z3fxe4z3fxe4z-300x164.jpg 300w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_xe4z3fxe4z3fxe4z-768x419.jpg 768w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/09\/Gemini_Generated_Image_xe4z3fxe4z3fxe4z.jpg 1408w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6bc979b e-con-full e-flex e-con e-child\" data-id=\"6bc979b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9eed2d1 e-con-full e-flex e-con e-child\" data-id=\"9eed2d1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5570700 elementor-widget elementor-widget-heading\" data-id=\"5570700\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Frequently Asked Questions (FAQ)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-11adab8 e-con-full e-flex e-con e-child\" data-id=\"11adab8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e09fbed e-con-full e-flex e-con e-child\" data-id=\"e09fbed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47c4a4e elementor-widget elementor-widget-text-editor\" data-id=\"47c4a4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>A:<\/strong><strong>Is 63\/37 solder better than 60\/40?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-79483f3 e-con-full e-flex e-con e-child\" data-id=\"79483f3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2ccf50c e-con-full e-flex e-con e-child\" data-id=\"2ccf50c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-165e706 elementor-widget elementor-widget-text-editor\" data-id=\"165e706\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For hand soldering and rework, yes \u2014 its eutectic, single-point melt makes cleaner joints with less risk of cold spots. For bulk automated soldering, 60\/40 is a common, cost-effective choice. Neither is &#8220;stronger&#8221; in a way that usually matters.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-58b87bf e-con-full e-flex e-con e-child\" data-id=\"58b87bf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3645879 e-con-full e-flex e-con e-child\" data-id=\"3645879\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e20948c elementor-widget elementor-widget-text-editor\" data-id=\"e20948c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>A:<\/strong><strong>Can I use 60\/40 and 63\/37 interchangeably?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-90727ed e-con-full e-flex e-con e-child\" data-id=\"90727ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b842266 e-con-full e-flex e-con e-child\" data-id=\"b842266\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-994f4e5 elementor-widget elementor-widget-text-editor\" data-id=\"994f4e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>On the same iron and temperature, yes \u2014 both melt near 183\u00b0C and form reliable joints. Just expect 60\/40 to need a steadier hand during cool-down because of its mushy range. Don&#8217;t mix the two alloys in the same joint if you can avoid it.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b1d4b32 e-con-full e-flex e-con e-child\" data-id=\"b1d4b32\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-873b20e e-con-full e-flex e-con e-child\" data-id=\"873b20e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6497f35 elementor-widget elementor-widget-text-editor\" data-id=\"6497f35\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>A:<\/strong><strong>Is 63\/37 solder RoHS compliant?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-92da5ee e-con-full e-flex e-con e-child\" data-id=\"92da5ee\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-beff1e9 e-con-full e-flex e-con e-child\" data-id=\"beff1e9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7d9b0a elementor-widget elementor-widget-text-editor\" data-id=\"b7d9b0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>No. It&#8217;s roughly 37% lead, and RoHS bans lead in most electronics. For RoHS you need a lead-free alloy like SAC305. 63\/37 is easier to work with than 60\/40, but it is not the compliant option.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a446a0b e-con-full e-flex e-con e-child\" data-id=\"a446a0b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b63dd91 e-con-full e-flex e-con e-child\" data-id=\"b63dd91\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f592480 elementor-widget elementor-widget-heading\" data-id=\"f592480\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">About US<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b5dd9e1 e-con-full e-flex e-con e-child\" data-id=\"b5dd9e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6d2aab8 e-con-full e-flex e-con e-child\" data-id=\"6d2aab8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72a5de8 elementor-widget elementor-widget-text-editor\" data-id=\"72a5de8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-MoKEfKI4EdzEuPcCo3JcUGJMnac\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-HKXTfaw8Sd5zbxcNUYIc3xO7ndd\">Founded in 2012, <a href=\"https:\/\/jkrglo.com\/about-us\/\"><strong>JKRGLO<\/strong><\/a> strives to build a one-stop platform for the electronic industry chain. By integrating PCB manufacturing, component procurement and PCB assembly services, we enable digital PCBA processing. With increasing investment in innovation and digital systems, we have achieved rapid growth and emerged as a leading PCB and PCBA manufacturer in the industry, capable of rapidly producing high-reliability and cost-effective products.<\/div>\n<div>\u00a0<\/div>\n<div class=\"ace-line ace-line old-record-id-HKXTfaw8Sd5zbxcNUYIc3xO7ndd\"><a href=\"https:\/\/jkrglo.com\/about-us\/\"><strong>About US<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a93e228 e-con-full e-flex e-con e-child\" data-id=\"a93e228\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1914e57 e-con-full e-flex e-con e-child\" data-id=\"1914e57\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36ac484 elementor-widget elementor-widget-text-editor\" data-id=\"36ac484\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-MoKEfKI4EdzEuPcCo3JcUGJMnac\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-HKXTfaw8Sd5zbxcNUYIc3xO7ndd\">\n<h3><strong>You may also be interested in&#8230;<\/strong><\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-992e804 e-con-full e-flex e-con e-child\" data-id=\"992e804\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6b1949f e-con-full e-flex e-con e-child\" data-id=\"6b1949f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc9e307 elementor-widget 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data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/08\/\u672a\u6807\u9898-9.jpg\" class=\"attachment-large size-large wp-image-3757\" alt=\"\" srcset=\"https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/08\/\u672a\u6807\u9898-9.jpg 400w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/08\/\u672a\u6807\u9898-9-300x300.jpg 300w, https:\/\/jkrglo.com\/wp-content\/uploads\/2026\/08\/\u672a\u6807\u9898-9-150x150.jpg 150w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ba143a5 e-con-full e-flex e-con e-child\" data-id=\"ba143a5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-122b40c e-con-full e-flex e-con e-child\" data-id=\"122b40c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7523c7b elementor-widget elementor-widget-heading\" data-id=\"7523c7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">About the Author<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-615827b e-con-full e-flex e-con e-child\" data-id=\"615827b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-af5d9f5 elementor-widget elementor-widget-text-editor\" data-id=\"af5d9f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Andrew Zhan &#8211;\u00a0 R&amp;D Engineer at JKRGLO.com<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3eb8489 e-con-full e-flex e-con e-child\" data-id=\"3eb8489\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1c2e1c5 elementor-widget elementor-widget-text-editor\" data-id=\"1c2e1c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>With over 14 years of R&amp;D engineering experience in the PCB industry, Andrew Zhan brings deep expertise in circuit design optimization and DFM implementation. He focuses on translating complex design requirements into production-ready solutions, driving technical innovation for both prototype and mass production.<br \/>Working closely with cross-functional teams and clients, he ensures rigorous quality validation and seamless technical communication across the full project lifecycle. Andrew is committed to delivering reliable, high-performance PCB solutions that consistently exceed customer expectations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-47e9ae48 e-con-full e-flex e-con e-child\" data-id=\"47e9ae48\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:93,&quot;animation&quot;:&quot;none&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;laptop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-40c24d4b e-con-full e-flex e-con e-child\" data-id=\"40c24d4b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23b92067 elementor-toc--content-ellipsis elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"23b92067\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;\\u5728\\u6b64\\u9875\\u9762\\u4e0a\\u627e\\u4e0d\\u5230\\u6807\\u9898\\u3002&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;marker_view&quot;:&quot;bullets&quot;,&quot;collapse_subitems&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:205,&quot;sizes&quot;:[]},&quot;icon&quot;:{&quot;value&quot;:&quot;fas fa-circle&quot;,&quot;library&quot;:&quot;fa-solid&quot;,&quot;rendered_tag&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-fas-circle\\&quot; 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Contact Us:\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f4509c elementor-widget elementor-widget-text-editor\" data-id=\"8f4509c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #800000;\"><a style=\"color: #800000; text-decoration: none;\" href=\"mailto:wm-sale03@jkr.net.cn\">wm-sale03@jkr.net.cn<\/a><br \/><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8418855 e-con-full e-flex e-con e-child\" data-id=\"8418855\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d749c5a elementor-widget elementor-widget-text-editor\" data-id=\"d749c5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Need a PCB or PCBA quote?\u00a0\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f68e762 elementor-widget elementor-widget-text-editor\" data-id=\"f68e762\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a style=\"text-decoration: none;\" href=\"https:\/\/jkrglo.com\/contact-us\/\"><span style=\"color: #800000;\">Quote now<\/span><br \/><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d825878 e-flex e-con-boxed e-con e-parent\" data-id=\"d825878\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2c516e3 e-con-full e-flex e-con e-child\" data-id=\"2c516e3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-13e713b e-con-full e-flex e-con e-child\" data-id=\"13e713b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-16fd48e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"16fd48e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><b>Tag:<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8078688 e-con-full e-flex e-con e-child\" data-id=\"8078688\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f34dcff elementor-widget elementor-widget-text-editor\" data-id=\"f34dcff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span class=\"_inAfterOutline_false_w9nx7-ko_ ___SBox_w9nx7-ko_ ___SText_1xzws-ko_\" data-ui-name=\"Link.Text\">63-37<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6cf2048 e-con-full e-flex e-con e-child\" data-id=\"6cf2048\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a57c959 elementor-widget elementor-widget-text-editor\" data-id=\"a57c959\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\">PCBA<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-74ded42 e-con-full e-flex e-con e-child\" data-id=\"74ded42\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d14cb73 elementor-widget elementor-widget-text-editor\" data-id=\"d14cb73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span class=\"_inAfterOutline_false_w9nx7-ko_ ___SBox_w9nx7-ko_ ___SText_1xzws-ko_\" data-ui-name=\"Link.Text\">63 37 solder<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8cf9ab7 e-con-full e-flex e-con e-child\" data-id=\"8cf9ab7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a29b3c7 elementor-widget elementor-widget-text-editor\" data-id=\"a29b3c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span class=\"_inAfterOutline_false_w9nx7-ko_ ___SBox_w9nx7-ko_ ___SText_1xzws-ko_\" data-ui-name=\"Link.Text\">PCB<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-60a900b e-con-full e-flex e-con e-child\" data-id=\"60a900b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7d43eb4 elementor-widget elementor-widget-text-editor\" data-id=\"7d43eb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"kwo-ideas-row-layout__cell kwo-ideas-row-layout__cell_align_left\" role=\"cell\"><span class=\"_inAfterOutline_false_w9nx7-ko_ ___SBox_w9nx7-ko_ ___SText_1xzws-ko_\" data-ui-name=\"Link.Text\">what is 63 37 solder<\/span><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>63\/37 vs 60\/40 Solder: The Practical Difference, Side by Side Facebook X-twitter Youtube Opening Introduction Quick answer:63\/37 and 60\/40 are [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3932,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","site-sidebar-layout":"right-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[12],"tags":[],"class_list":["post-3930","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcbpcba"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Choosing solder: 63\/37 vs 60\/40 - any practical difference?<\/title>\n<meta name=\"description\" content=\"63\/37 and 60\/40 are both tin-lead solders that melt around 183\u00b0C, but they behave differently on the iron. 63\/37 is eutectic, so it flips...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jkrglo.com\/de\/63-37-vs-60-40-solder\/\" \/>\n<meta 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