Hot work tool steel featuring excellent hot tensile properties, high hot wear resistance, adequate toughness and heat checking resistance; admits water cooling.
| High temperture strength | High temperature toughness | High temperature wear resistance | Machinability supplied |
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| SEL | UNS | EN | AISI | JIS | NADCA |
|---|---|---|---|---|---|
| 1.2344 | T20813 | X40CrMoV5-1 | H13 | SKD61 | B1885 |
| EN ISO | JIS | NADCA |
|---|---|---|
| 4957 | G4404 | #207 |
| C | Si | Mn | Cr | Mo | V | |
|---|---|---|---|---|---|---|
| 0.39 | 0.90 | 0.40 | 5.20 | 1.40 | 0.95 |
