{"id":1011,"date":"2025-01-28T04:09:41","date_gmt":"2025-01-28T04:09:41","guid":{"rendered":"https:\/\/cnc-machiningservices.com\/?post_type=material&#038;p=1011"},"modified":"2025-04-28T07:27:25","modified_gmt":"2025-04-28T07:27:25","slug":"alloy-steel-4140-1-7225-en19-42crmo4","status":"publish","type":"material","link":"https:\/\/cnc-machiningservices.com\/zh\/material\/alloy-steel-4140-1-7225-en19-42crmo4\/","title":{"rendered":"Alloy steel 4140 | 1.7225 | EN19 | 42CrMo4"},"content":{"rendered":"<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <style>\n        table {\n            width: 100%;\n            border-collapse: collapse;\n            font-size: 14px; \/* Use default WordPress font *\/\n        }\n        th, td {\n            border: 1px solid black;\n            padding: 8px;\n            text-align: left;\n        }\n        th {\n            font-weight: bold;\n        }\n        td:first-child {\n            width: 50%;\n        }\n        td:last-child {\n            width: 50%;\n        }\n    <\/style>\n<\/head>\n<body>\n\n<table>\n    <thead>\n        <tr>\n            <th>Property<\/th>\n            <th>Value<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td colspan=\"2\"><strong>Mechanical Properties<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Ultimate tensile strength<\/td>\n            <td>355 &#8211; 370 MPa<\/td>\n        <\/tr>\n        <tr>\n            <td>Yield strength<\/td>\n            <td>230 MPa<\/td>\n        <\/tr>\n        <tr>\n            <td>Young&#8217;s modulus (modulus of elasticity)<\/td>\n            <td>208 &#8211; 216 GPa<\/td>\n        <\/tr>\n        <tr>\n            <td>Elongation at break<\/td>\n            <td>18 &#8211; 26 %<\/td>\n        <\/tr>\n        \n        <tr>\n            <td colspan=\"2\"><strong>Physical Properties<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Corrosion resistance<\/td>\n            <td>Moderate to Poor<\/td>\n        <\/tr>\n        <tr>\n            <td>Magnetism<\/td>\n            <td>Semi-Magnetic<\/td>\n        <\/tr>\n        <tr>\n            <td>UV resistance<\/td>\n            <td>Excellent<\/td>\n        <\/tr>\n        <tr>\n            <td>Weldability<\/td>\n            <td>Moderate<\/td>\n        <\/tr>\n\n        <tr>\n            <td colspan=\"2\"><strong>Thermal Properties<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Maximum service temperature<\/td>\n            <td>613 &#8211; 650 \u00b0C<\/td>\n        <\/tr>\n        <tr>\n            <td>Thermal expansion coefficient<\/td>\n            <td>11.5 &#8211; 13.5 \u00d7 10<sup>-6<\/sup>\/\u00baC<\/td>\n        <\/tr>\n        <tr>\n            <td>Thermal conductivity<\/td>\n            <td>42 &#8211; 48 W\/(m\u22c5\u00b0C)<\/td>\n        <\/tr>\n\n        <tr>\n            <td colspan=\"2\"><strong>Electrical Properties<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Electrical resistivity<\/td>\n            <td>20 &#8211; 25 \u03bc\u03a9*cm<\/td>\n        <\/tr>\n\n        <tr>\n            <td colspan=\"2\"><strong>Post Treatments<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Post-Processing<\/td>\n            <td>Tempering &#038; Annealing<\/td>\n        <\/tr>\n        <tr>\n            <td>Anodizing compatibility<\/td>\n            <td>Not suitable<\/td>\n        <\/tr>\n\n        <tr>\n            <td colspan=\"2\"><strong>Common Applications<\/strong><\/td>\n        <\/tr>\n        <tr>\n            <td>Heavy duty shafts<\/td>\n            <td><\/td>\n        <\/tr>\n        <tr>\n            <td>Connecting rods<\/td>\n            <td><\/td>\n        <\/tr>\n        <tr>\n            <td>High tensile bolts<\/td>\n            <td><\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"<p>Property Value Mechanical Properties Ultimate tensile strength 355 &#8211; 370 MPa Yield strength 230 MPa Young&#8217;s modulus (modulus of elasticity) 208 &#8211; 216 GPa Elongation at break 18 &#8211; 26 % Physical Properties Corrosion resistance Moderate to Poor Magnetism Semi-Magnetic UV resistance Excellent Weldability Moderate Thermal Properties Maximum service temperature 613 &#8211; 650 \u00b0C Thermal [&hellip;]<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"material-category":[45,33],"class_list":["post-1011","material","type-material","status-publish","format-standard","hentry","material-category-alloy-steel","material-category-cnc-machining-metals"],"acf":[],"_links":{"self":[{"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/material\/1011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/types\/material"}],"version-history":[{"count":9,"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/material\/1011\/revisions"}],"predecessor-version":[{"id":4796,"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/material\/1011\/revisions\/4796"}],"wp:attachment":[{"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/media?parent=1011"}],"wp:term":[{"taxonomy":"material-category","embeddable":true,"href":"https:\/\/cnc-machiningservices.com\/zh\/wp-json\/wp\/v2\/material-category?post=1011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}