{"id":1401,"date":"2026-04-02T16:09:05","date_gmt":"2026-04-02T08:09:05","guid":{"rendered":"https:\/\/www.jycomat.com\/?post_type=product&p=1401"},"modified":"2026-04-02T16:10:06","modified_gmt":"2026-04-02T08:10:06","slug":"aisi-4340-steel-36crnimo4-1-6511-en24-817m40-sncm439","status":"publish","type":"product","link":"https:\/\/www.jycomat.com\/vi\/san-pham\/aisi-4340-steel-36crnimo4-1-6511-en24-817m40-sncm439\/","title":{"rendered":"Th\u00e9p AISI 4340 \/ 36CrNiMo4 \/ 1.6511 \/ EN24 \/ 817M40 \/ SNCM439"},"content":{"rendered":"
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Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u00e9p AISI 4340 v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan<\/h3>
Qu\u1ed1c gia<\/td>Hoa K\u1ef3<\/td>Anh<\/td>Anh<\/td>Nh\u1eadt B\u1ea3n<\/td><\/tr>
Ti\u00eau chu\u1ea9n<\/td>ASTM A29<\/td>EN 10250<\/td>BS 970<\/td>JIS G4103<\/td><\/tr>
\u0110i\u1ec3m<\/td>4340<\/td>36CrNiMo4\/
1.6511<\/td>		EN24\/817M40<\/td>SNCM 439\/SNCM8<\/td><\/tr><\/tbody><\/table><\/div>

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p ASTM 4340 v\u00e0 c\u00e1c lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/h3>
Ti\u00eau chu\u1ea9n<\/td>L\u1edbp<\/td>C<\/td>Mn<\/td>P<\/td>S<\/td>Si<\/td>Ni<\/td>Cr<\/td>Th\u1ee9 Hai<\/td><\/tr>
ASTM A29<\/td>4340<\/td>0.38-0.43<\/td>0.60-0.80<\/td>0.035<\/td>0.040<\/td>0.15-0.35<\/td>1.65-2.00<\/td>0.70-0.90<\/td>0.20-0.30<\/td><\/tr>
EN 10250<\/td>36CrNiMo4\/
1.6511<\/td>		0.32-0.40<\/td>0.50-0.80<\/td>0.035<\/td>0.035<\/td>\u2264 0,40<\/td>0.90-1.20<\/td>0.90-1.2<\/td>0.15-0.30<\/td><\/tr>
BS 970<\/td>EN24\/817M40<\/td>0.36-0.44<\/td>0.45-0.70<\/td>0.035<\/td>0.040<\/td>0.1-0.40<\/td>1.3-1.7<\/td>1.00-1.40<\/td>0.20-0.35<\/td><\/tr>
JIS G4103<\/td>SNCM 439\/SNCM8<\/td>0.36-0.43<\/td>0.60-0.90<\/td>0.030<\/td>0.030<\/td>0.15-0.35<\/td>1.60-2.00<\/td>0.60-1.00<\/td>0.15-0.30

<\/td><\/tr><\/tbody><\/table><\/div>

T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p h\u1ee3p kim AISI 4340<\/h3>
T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc

(Tr\u1ea1ng th\u00e1i \u0111\u00e3 qua x\u1eed l\u00fd nhi\u1ec7t)<\/p><\/td>

\u0110i\u1ec1u ki\u1ec7n<\/td>Ph\u1ea7n quy\u1ebft \u0111\u1ecbnh
mm<\/td>		\u0110\u1ed9 b\u1ec1n k\u00e9o (MPa)<\/td>Gi\u1edbi h\u1ea1n ch\u1ea3y
MPa<\/td>		K\u00e9o d\u00e0i.
%<\/td>		\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp Izod
J<\/td>		Brinell
\u0110\u1ed9 c\u1ee9ng<\/td><\/tr>
T<\/td>250<\/td>850-1000<\/td>635<\/td>13<\/td>40<\/td>248-302<\/td><\/tr>
T<\/td>150<\/td>850-1000<\/td>665<\/td>13<\/td>54<\/td>248-302<\/td><\/tr>
U<\/td>100<\/td>930-1080<\/td>740<\/td>12<\/td>47<\/td>269-331<\/td><\/tr>
\u00a0<\/td><\/tr>
V<\/td>63<\/td>1000-1150<\/td>835<\/td>12<\/td>47<\/td>293-352<\/td><\/tr>
W<\/td>30<\/td>1080-1230<\/td>925<\/td>11<\/td>41<\/td>311-375<\/td><\/tr>
X<\/td>30<\/td>1150-1300<\/td>1005<\/td>10<\/td>34<\/td>341-401<\/td><\/tr>
\u00a0<\/td><\/tr>
Y<\/td>30<\/td>1230-1380<\/td>1080<\/td>10<\/td>24<\/td>363-429<\/td><\/tr>
Z<\/td>30<\/td>1555-<\/td>1125<\/td>5<\/td>10<\/td>444-<\/td><\/tr><\/tbody><\/table><\/div>

T\u00ednh ch\u1ea5t nhi\u1ec7t<\/h3>
Thu\u1ed9c t\u00ednh<\/td>H\u1ec7 m\u00e9t<\/td>Ho\u00e0ng gia<\/td><\/tr>
H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t (20\u00b0C\/68\u00b0F, m\u1eabu \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00f4i b\u1eb1ng d\u1ea7u, 600\u00b0C (1110\u00b0F) \u1ee7<\/td>12,3 \u00b5m\/m\u00b0C<\/td>6,83 \u00b5in\/\u00b0F<\/td><\/tr>
\u0110\u1ed9 d\u1eabn nhi\u1ec7t (th\u00e9p th\u00f4ng th\u01b0\u1eddng)<\/td>44,5 W\/mK<\/td>309 BTU\/gi\u1edd\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><\/tbody><\/table><\/div>

R\u00e8n th\u00e9p h\u1ee3p kim 4340<\/h3>

Tr\u01b0\u1edbc ti\u00ean, h\u00e3y l\u00e0m n\u00f3ng th\u00e9p 4340 tr\u01b0\u1edbc, nung l\u00ean \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a 1150\u00b0C \u2013 1200\u00b0C \u0111\u1ec3 r\u00e8n, duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 cho \u0111\u1ebfn khi nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 m\u1eb7t c\u1eaft.<\/p>

Kh\u00f4ng n\u00ean r\u00e8n \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 850 \u00b0C. Th\u00e9p 4340 c\u00f3 t\u00ednh ch\u1ea5t r\u00e8n t\u1ed1t nh\u01b0ng c\u1ea7n th\u1eadn tr\u1ecdng trong qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i v\u00ec lo\u1ea1i th\u00e9p n\u00e0y d\u1ec5 b\u1ecb n\u1ee9t. Sau khi r\u00e8n, ph\u00f4i th\u00e9p n\u00ean \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i c\u00e0ng ch\u1eadm c\u00e0ng t\u1ed1t. N\u00ean l\u00e0m ngu\u1ed9i trong c\u00e1t ho\u1eb7c v\u00f4i kh\u00f4, v.v.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Th\u00e9p AISI 4340 l\u00e0 lo\u1ea1i th\u00e9p h\u1ee3p kim th\u1ea5p, h\u00e0m l\u01b0\u1ee3ng carbon trung b\u00ecnh, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 b\u1ec1n cao \u1edf c\u00e1c ti\u1ebft di\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn. AISI 4340 c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p niken-crom-molypden. Th\u00e9p h\u1ee3p kim 4340 th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf tr\u1ea1ng th\u00e1i t\u00f4i v\u00e0 ram, v\u1edbi gi\u1edbi h\u1ea1n k\u00e9o n\u1eb1m trong kho\u1ea3ng 930 \u2013 1080 MPa.<\/p>","protected":false},"featured_media":1402,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-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":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","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":[22],"product_tag":[64],"class_list":["post-1401","product","type-product","status-publish","has-post-thumbnail","product_cat-mold-steel","product_tag-mold-steel","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product\/1401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/comments?post=1401"}],"version-history":[{"count":0,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product\/1401\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/media\/1402"}],"wp:attachment":[{"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/media?parent=1401"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product_brand?post=1401"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product_cat?post=1401"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jycomat.com\/vi\/wp-json\/wp\/v2\/product_tag?post=1401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}