A8 1.2631 Cold Work Die Tool Steel
GB: *5Cr8Mo2VSi
AISI: A8改
DIN: 1.2631
JIS: -
Erasteel: -
Bohler: K300
Hitachi: -
A8 steel is a type of tool steel that contains high levels of carbon and chromium. It is often used for applications that require high hardness, wear resistance, and toughness, such as in molds for plastic injection molding, die-casting, and forging. A8 steel is known for its excellent dimensional stability and ability to retain its cutting edge even under high stress and heavy use.
PRODUCTS |
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| SIMILAR STEEL GRADES | ||||||
National Standard | Manufacturer Standard | |||||
| GB | AISI | DIN | JIS | Erasteel | Bohler | Hitachi |
*5Cr8Mo2VSi | A8改 | 1.2631 | - | - | K300 | - |
| Chemical composition % | ||||||||||
C | Si | Mn | P ≤ | S ≤ | Cr | W | Mo | V | Co | etc. |
0.52 | 0.9 | 0.35 | 0.03 | 0.03 | 8.2 | ≤1.75 | 1.5 | 0.4 | - | - |
| Characteristics | |||
Annealed Hardness HB | Heat Treatment Temperature ℃ | Tampering Hardness HRC | |
Hardening | Tempering | ||
255 | 1010-1050 | 500 | 56-59 |
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