{"id":9870,"date":"2025-08-24T16:00:18","date_gmt":"2025-08-24T08:00:18","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9870"},"modified":"2026-06-26T10:41:20","modified_gmt":"2026-06-26T02:41:20","slug":"4cr5mosiv-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/4cr5mosiv-tool-steel\/","title":{"rendered":"A\u00e7o para ferramentas de trabalho a quente 4Cr5MoSiV"},"content":{"rendered":"\n
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4Cr5MoSiV Hot Work Tool Steel<\/mark><\/h1>\n\n\n\n

AOBO STEEL \u2013 Trusted Global Tool Steel Supplier<\/mark><\/h3>\n\n\n\n
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Send Inquiry Now<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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4Cr5MoSiV is a Chinese national standard grade, equivalent to AISI<\/mark><\/a> H11<\/mark><\/a> in the United States. Compared with 4Cr5MoSiV1<\/mark><\/a>(AISI H13<\/mark><\/a>\/DIN 1.2343), the vanadium content in the composition of 4Cr5MoSiV is lower. 4Cr5MoSiV1 generally has higher hot strength and hardness, and is more widely used, but 4Cr5MoSiV is still favored for high-speed hammer forging dies due to its excellent thermal fatigue resistance.<\/p>\n\n\n\n

1. Chemical Composition(GB \/ T 1299\u20142000)<\/h2>\n\n\n\n
C<\/strong><\/td>Si<\/strong><\/td>Mn<\/strong><\/td>Cr<\/strong><\/td>Mo<\/strong><\/td>V<\/strong><\/td>P<\/strong><\/td>S<\/strong><\/td><\/tr>
0.33 – 0.43%<\/td>0.80 – 1.20%<\/td>0.20 – 0.50%<\/td>4.75 – 5.50%<\/td>1.10 – 1.60%<\/td>0.30 – 0.60%<\/td>\u22640.030%<\/td>\u22640.030%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2. Physical Properties of 4Cr5MoSiV<\/h2>\n\n\n\n

2.1 Critical Temperatures<\/strong><\/p>\n\n\n\n

Critical Point<\/strong><\/td>Ac\u2081<\/sub><\/strong><\/td>Ac\u2083<\/sub><\/strong><\/td>Ar\u2081<\/sub><\/strong><\/td>Ar\u2083<\/sub><\/strong><\/td>Ms<\/strong><\/td>Mf<\/strong><\/td><\/tr>
Temperature (approx.) \/ \u00b0C<\/td>853<\/td>912<\/td>720<\/td>773<\/td>310<\/td>103<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.2 Coefficient of Linear Expansion<\/strong><\/p>\n\n\n\n

Temperature \/ \u00b0C<\/strong><\/td>20 ~ 100<\/strong><\/td>20 ~ 200<\/strong><\/td>20 ~ 300<\/strong><\/td>20 ~ 400<\/strong><\/td>20 ~ 500<\/strong><\/td>20 ~ 600<\/strong><\/td>20 ~ 700<\/strong><\/td><\/tr>
Coeff. of Linear Expansion \u03b1 \/ 10\u207b\u2076 \u00b0C\u207b\u00b9<\/td>10.0<\/td>10.9<\/td>11.4<\/td>12.2<\/td>12.8<\/td>13.3<\/td>13.6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.3 Thermal Conductivity<\/strong><\/p>\n\n\n\n

Temperature \/ \u00b0C<\/strong><\/td>100<\/strong><\/td>200<\/strong><\/td>300<\/strong><\/td>400<\/strong><\/td>500<\/strong><\/td>600<\/strong><\/td>700<\/strong><\/td><\/tr>
Thermal Conductivity \u03bb \/ [W\/(m\u00b7K)]<\/td>25.9<\/td>27.6<\/td>28.4<\/td>28.0<\/td>27.6<\/td>26.7<\/td>25.9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.4 Modulus of Elasticity<\/strong><\/p>\n\n\n\n

Temperature \/ \u00b0C<\/strong><\/td>20<\/strong><\/td>100<\/strong><\/td>200<\/strong><\/td>300<\/strong><\/td>400<\/strong><\/td>500<\/strong><\/td><\/tr>
Modulus of Elasticity E \/ MPa<\/td>227,000<\/td>221,000<\/td>216,000<\/td>208,000<\/td>200,000<\/td>192,000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.5 Density and Specific Heat Capacity <\/strong><\/p>\n\n\n\n

Density \/ (g\/cm\u00b3)<\/strong><\/td>Specific Heat Capacity c\u209a (20\u00b0C) \/ [J\/(kg\u00b7K)]<\/strong><\/td><\/tr>
7.69<\/td>459.8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

3. Hot Forging Process Specification for 4Cr5MoSiV Steel<\/strong><\/h2>\n\n\n\n
Item<\/strong><\/td>Heating Temperature \/ \u00b0C<\/strong><\/td>Initial Forging Temperature \/ \u00b0C<\/strong><\/td>Final Forging Temperature \/ \u00b0C<\/strong><\/td>Cooling Method<\/strong><\/td><\/tr>
Steel Ingot<\/td>1140 ~ 1180<\/td>1100 ~ 1150<\/td>\u2265900<\/td>Sand cooling or pit cooling<\/td><\/tr>
Steel Billet<\/td>1120 ~ 1150<\/td>1070 ~ 1100<\/td>850 ~ 900<\/td>Sand cooling or pit cooling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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\"H11
H11 tool steel<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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Please fill out the following contact form to get the latest 4Cr5MoSiV quotation.<\/strong><\/p>\n\n\n\n

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