{"id":574,"date":"2025-06-16T08:58:51","date_gmt":"2025-06-16T08:58:51","guid":{"rendered":"https:\/\/dura-alloy.com\/?post_type=product&p=574"},"modified":"2025-06-16T08:58:51","modified_gmt":"2025-06-16T08:58:51","slug":"30crmnsini2a","status":"publish","type":"product","link":"https:\/\/www.dura-alloy.com\/ar\/product\/30crmnsini2a\/","title":{"rendered":"30CrCrMnSiNi2A"},"content":{"rendered":"

\u0646\u0637\u0627\u0642 \u062a\u0648\u0631\u064a\u062f \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0637\u064a\u0631\u0627\u0646:<\/span><\/strong><\/p>\n

Round rods, steel plates, non-standard forgings, rings, seamless pipes, non-standard customization, welcome to inquire!<\/span><\/strong><\/p>\n

1.\u00a0<\/span><\/strong>Introduction to 30CrMnSiNi2A materials<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 After heat treatment, 30CrMnSiNi2A alloy structural steel can obtain high strength, good plasticity and toughness, good fatigue resistance and fracture toughness, and low fatigue crack propagation rate.<\/span><\/p>\n

2. Chemical composition of 30CrMnSiNi2A<\/span><\/strong><\/p>\n\n\n\n\n\n
\u0633\u0628\u064a\u0643\u0629<\/span><\/td>\n%<\/td>\n\u0627\u0644\u0643\u0631\u0648\u0645 Cr<\/span><\/td>\n\u0627\u0644\u0643\u0631\u0628\u0648\u0646 C<\/span><\/td>\n\u0627\u0644\u0645\u0646\u062c\u0646\u064a\u0632 \u0627\u0644\u0645\u0646\u063a\u0646\u064a\u0632<\/span><\/td>\n\u0633\u064a\u0644\u064a\u0643\u0648\u0646 \u0633\u064a<\/span><\/td>\n\u0627\u0644\u0641\u0648\u0633\u0641\u0648\u0631 P<\/span><\/td>\n\u0627\u0644\u0643\u0628\u0631\u064a\u062a S<\/span><\/td>\nNi<\/span><\/td>\n<\/tr>\n
30crmnsini2a<\/span><\/td>\n\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u0644\u0642\u064a\u0645\u0629<\/span><\/td>\n0.90<\/td>\n0.27<\/td>\n1.0<\/td>\n0.9<\/td>\n–<\/td>\n–<\/span><\/td>\n1.4<\/td>\n<\/tr>\n
\u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0642\u0635\u0648\u0649<\/span><\/td>\n1.20<\/td>\n0.34<\/td>\n1.3<\/td>\n1.2<\/td>\n0.020<\/td>\n0.020<\/span><\/td>\n1.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3.<\/span><\/strong>\u00a0Mechanical properties of 30CrMnSiNi2A<\/span><\/p>\n

Tensile strength \u03c3b (MPa): 1)1767; 2)1627<\/span><\/p>\n

Elongation \u03b45 (%): 1)12; 2)13<\/span><\/p>\n

Section shrinkage \u03c8 (%): 50<\/span><\/p>\n

Impact toughness value \u03b1ku (J\/cm2): 1)79; 2)90<\/span><\/p>\n

Sample size: bar<\/span><\/p>\n

IV. Physical properties of 30CrMnSiNi2A<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 30CrCrMnSiNi2A\u00a0<\/span><\/strong>heat treatment specifications and metallographic structure:<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 Heat treatment specifications: 1) Oil quenching at 890-900\u2103, tempering at 200-300\u2103, air-cooling; 2) Heating at 890-900\u2103, quenching into a medium-temperature of 210-280\u2103 nitrifying salt tank for 1 hour, air-cooling, and then back-cooling at 200-300\u2103, air-cooling.<\/span><\/p>\n

Metallographic structure: 1) High-temperature tempering after hot rolling or cold rolling is pearlite; 2) Normalized and high-temperature tempering is tempered cortexite; 3) Isothermal annealing is sheet pearlite and ferrite; 4) Normalized state is martensite and bainite; 5) Used state is tempered martensite.<\/span><\/p>\n

\u00a0<\/strong>\u00a0 \u00a0 \u00a0 Critical temperature of 30CrMnSiNi2A\u00a0<\/span><\/strong>steel<\/span><\/strong><\/p>\n\n\n\n\n
Critical point<\/span><\/td>\nAc1<\/span><\/td>\nAC3<\/span><\/td>\nMs<\/td>\nRemark<\/span><\/td>\n<\/tr>\n
Temperature (approximate value)\/\u2103<\/span><\/td>\n705\u00a0 705<\/td>\n800\u00a0 815<\/td>\n321\u00a0 \u00a0314<\/td>\n1\u00a0 \u00a02<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Note: 1. Steel composition (%) used: 0.27C, 1.05Si, 1.06Mn, 1.05Cr, 1.66Ni, 0.013P, 0.005S;<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a02. Steel composition (%) used: 0.30C, 1.10Si, 1.07Mn, 1.06Cr, 1.50Ni, 0.014P, 0.005S.\u00a0<\/span><\/p>\n

V.\u00a0<\/span><\/strong>Characteristics and scope of application of 30CrMnSiNi2A<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 30CrMnSiNi2A has high hardenability, good machining and welding properties, but is more sensitive to notch and hydrogen embrittlement (including environmental hydrogen embrittlement).<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 30CrMnSiNi2A is suitable as important stress-bearing structural components such as high-strength connectors and shaft parts.<\/span><\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Scope of supply of Aviation Group: Round rods, steel plates, non-standard forgings, rings, seamless pipes, non-standard customization, welcome to inquire! […]<\/p>","protected":false},"featured_media":575,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[32],"product_tag":[],"class_list":{"0":"post-574","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-alloy-structural-steel","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product\/574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product\/574\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/media\/575"}],"wp:attachment":[{"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/media?parent=574"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product_brand?post=574"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product_cat?post=574"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/ar\/wp-json\/wp\/v2\/product_tag?post=574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}