60WCrV8
1.2550Shock-resisting cold work tool steel (AISI S1) with tungsten and high silicon for exceptional toughness and impact resistance. Oil hardening. Achieves 52-60 HRC. Very good dimensional stability during heat treatment. Used for blanking and stamping dies for sheet up to 12mm, cold piercing punches, shear blades, pneumatic chisels, coining tools, woodworking tools, and ejectors. The premium choice where impact resistance is more critical than maximum wear resistance. Also known as 60WCrV7 (older DIN designation).
Chemical composition comparison (wt%)
Side-by-side: 60WCrV8 (EN) (EN ISO 4957) vs ASTM
| Element | 60WCrV8 (EN) | ASTM | Overlap |
|---|---|---|---|
| C | 0.55–0.65% | — | — |
| Si | 0.7–1% | — | — |
| Mn | 0.15–0.45% | — | — |
| P | ≤ 0.03% | — | — |
| S | ≤ 0.03% | — | — |
| Cr | 0.9–1.2% | — | — |
| V | 0.1–0.2% | — | — |
| W | 1.7–2.2% | — | — |
Mechanical properties
Annealed
| Property | Value | Unit |
|---|---|---|
| Hardness HB | ≤ 225 | HB |
QT
| Property | Value | Unit |
|---|---|---|
| Hardness HRC | 52–60 | HRC |
| Density | ≥ 7.85 | g/cm3 |
Heat treatment
| Process | Temperature | Medium | Holding Time | Notes |
|---|---|---|---|---|
| annealing | 680–720 °C | furnace | — | Slow cool, max 225 HB |
| hardening | 870–920 °C | oil | — | Oil quench |
| tempering | 180–300 °C | air | — | 52-60 HRC depending on temp |
Related materials
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M2 / HS6-5-2
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X45NiCrMo4
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