{"id":69616,"date":"2026-05-17T17:27:15","date_gmt":"2026-05-17T17:27:15","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/astm-f3125-m-asme-sf3125-m\/"},"modified":"2026-05-19T15:29:58","modified_gmt":"2026-05-19T15:29:58","slug":"astm-f3125-m-asme-sf3125-m","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/astm-f3125-m-asme-sf3125-m\/","title":{"rendered":"ASTM F3125 M \/ ASME SF3125 M"},"content":{"rendered":"<h2>ASTM F3125 \/ F3125M Technical Regulation: High-Strength Fastener Standards<\/h2>\n<p>The ASTM F3125 \/ F3125M standard establishes comprehensive requirements for the chemical composition and physical-mechanical properties of quenched and tempered bolts made from carbon and alloy steels. The specification unifies requirements for both imperial and metric measurement systems, covering a wide range of structural connections.<\/p>\n<p>This regulation is a consolidated document that replaced six outdated ASTM standards: A325, A325M, A490, A490M, F1852, and F2280. For EV Group China engineers, this allows for the optimization of design and quality control processes, ensuring uniformity when selecting fasteners for critical structures.<\/p>\n<p><strong>Areas of Application:<\/strong><\/p>\n<ul>\n<li>High-strength fasteners for critical metal structures designed in accordance with the Research Council on Structural Connections (RCSC) recommendations.<\/li>\n<li>The supply range of EV Group China includes metric sizes from M12 to M36 and imperial sizes from 1.0 to 2.0 inches.<\/li>\n<\/ul>\n<p><strong>Classification and Technical Parameters:<\/strong><\/p>\n<ul>\n<li><strong>Strength Grade:<\/strong> determined based on the measurement system (imperial or SI).<\/li>\n<li><strong>Material Type:<\/strong> determines the chemical basis of the raw material to ensure specified performance characteristics.<\/li>\n<li><strong>Design Execution:<\/strong> includes heavy hex head bolts, as well as specialized &#8220;Twist-off&#8221; assemblies (Tension Control Bolts).<\/li>\n<\/ul>\n<p><strong>Technical Notes on Steel Types:<\/strong><\/p>\n<ul>\n<li>Type 1 (1040 MPa \/ 150 ksi): alloy steels, including boron-added compositions.<\/li>\n<li>Type 3 (830 MPa \/ 120 ksi or 1040 MPa \/ 150 ksi): weathering steel for operation in aggressive environments.<\/li>\n<li>Type 1 (830 MPa \/ 120 ksi): carbon, carbon-boron, and alloy steels.<\/li>\n<\/ul>\n<p>The terminology used in the specification complies with the international standard F1789. Please note: when designing, it is necessary to adhere to a single system of units (SI or pounds), as their direct mathematical combination may lead to a violation of the standard&#8217;s requirements. EV Group China recommends verifying the compliance of design documentation before ordering metal products.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[112],"class_list":["post-69616","wiki","type-wiki","status-publish","hentry","wiki_category-astm"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69616\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69616"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}