{"id":9939,"date":"2025-08-27T16:12:20","date_gmt":"2025-08-27T08:12:20","guid":{"rendered":"https:\/\/aobosteel.com\/"},"modified":"2025-12-21T19:22:39","modified_gmt":"2025-12-21T11:22:39","slug":"3cr2w8v-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/3cr2w8v-tool-steel\/","title":{"rendered":"Acero para herramientas de trabajo en caliente 3Cr2W8V"},"content":{"rendered":"\n
\"\"<\/span>
\n

3Cr2W8V Hot Work Tool Steel<\/mark><\/h1>\n\n\n\n

AOBO STEEL \u2013 Trusted Global Tool Steel Supplier<\/mark><\/a><\/h3>\n\n\n\n
\n
Send Inquiry Now<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
\n

3Cr2W8V is a grade under the Chinese GB\/T standard, and its equivalent grade is ASTM\/AISI<\/mark><\/a> H21<\/mark><\/a> in the United States. 3Cr2W8V is a high thermal strength hot work tool steel, commonly used for dies that operate under high temperature and stress. It is a ledeburitic steel, meaning it has a microstructure with large primary carbides, which contributes to its high wear resistance at elevated temperatures.<\/p>\n\n\n\n

1. Chemical Composition<\/h2>\n\n\n\n
C<\/strong><\/td>Si<\/strong><\/td>Mn<\/strong><\/td>Cr<\/strong><\/td>W<\/strong><\/td>V<\/strong><\/td>P<\/strong><\/td>S<\/strong><\/td><\/tr>
0.30 – 0.40%<\/td>\u22640.40%<\/td>\u22640.40%<\/td>2.20 – 2.70%<\/td>7.50 – 9.00%<\/td>0.20 – 0.50%<\/td>\u22640.030%<\/td>\u22640.030%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2. Physical Properties of 3Cr2W8V Steel<\/strong><\/h2>\n\n\n\n

2.1 Critical Points of 3Cr2W8V Steel<\/strong><\/p>\n\n\n\n

Critical Point<\/strong><\/td>Ac\u2081<\/strong><\/td>Ac\u2083<\/strong><\/td>Ar\u2081<\/strong><\/td>Ar\u2083<\/strong><\/td>Ms<\/strong><\/td>Mf<\/strong><\/td><\/tr>
Temperature\/\u00b0C<\/td>850<\/td>930<\/td>773<\/td>835<\/td>350<\/td>160<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.2 Linear Expansion Coefficient<\/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>800<\/strong><\/td>900<\/strong><\/td>1000<\/strong><\/td><\/tr>
Linear Expansion Coefficient \u03b1\/ \u00d7 10\u207b\u2076 \u00b0C\u207b\u00b9<\/td>12.0<\/td>12.3<\/td>12.7<\/td>13.1<\/td>13.5<\/td>13.9<\/td>14.5<\/td>14.5<\/td>12.8<\/td>13.3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.3 Specific Heat Capacity<\/strong><\/p>\n\n\n\n

Temperature\/\u00b0C<\/strong><\/td>100<\/strong><\/td>200<\/strong><\/td>300<\/strong><\/td>500<\/strong><\/td>800<\/strong><\/td>900<\/strong><\/td><\/tr>
Specific Heat Capacity c\u209a\/ [J\/(kg\u00b7K)]<\/td>468.2<\/td>473<\/td>478<\/td>685.5<\/td>1262.4<\/td>660.4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Temperature\/\u00b0C<\/strong><\/td>100<\/strong><\/td>200<\/strong><\/td>700<\/strong><\/td>900<\/strong><\/td><\/tr>
Thermal Conductivity \u03bb\/[W\/(m\u00b7K)]<\/td>20.1<\/td>22.2<\/td>24.3<\/td>23.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.5 Electrical Resistivity<\/strong><\/p>\n\n\n\n

Temperature\/\u00b0C<\/th>20<\/th>200<\/th>500<\/th>700<\/th>900<\/th><\/tr>
Electrical Resistivity \u03c1\/ \u00d7 10\u207b\u2076 \u03a9\u00b7m<\/td>0.50<\/td>0.60<\/td>0.80<\/td>1.0<\/td>1.19<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.6 Other Physical Properties<\/strong><\/p>\n\n\n\n

Density\/(g\/cm\u00b3)<\/th>Modulus of Elasticity E\/MPa<\/th>Shear Modulus G\/MPa<\/th><\/tr>
7.74<\/td>214 000<\/td>73 000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

3. Hot Forging Process Specification for 3Cr2W8V Steel<\/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 \u2460<\/strong><\/td><\/tr>
Steel Ingot<\/td>1150 ~ 1200<\/td>1100 ~ 1150<\/td>850 ~ 900<\/td>Air cooling first, then pit or sand cooling<\/td><\/tr>
Steel Billet<\/td>1130 ~ 1160<\/td>1080 ~ 1120<\/td>850 ~ 900<\/td>Air cooling first, then pit or sand cooling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u2460 After forging, it should be cooled relatively quickly in the air to below Ac\u2081 (about 700\u00b0C), followed by slow cooling (pit cooling, sand cooling, or furnace cooling), or high-temperature annealing can be carried out. If conditions permit, direct red-hot annealing can be performed.<\/p>\n\n\n\n

\n
\n
\"3Cr2W8V\"
3Cr2W8V steel<\/figcaption><\/figure>\n<\/div>\n\n\n\n
\n

Please complete the following contact form to obtain a quotation for the best 3Cr2W8V(H10) steel.<\/strong><\/p>\n\n\n\n

\n\t\t\t\t\t\t