M2
Standard
ASTM A600 / W6Mo5Cr4V2
Hardness
Annealed ≤248HB, Q&T HRC63-66
Introduction
General-purpose molybdenum HSS, the most widely used grade globally. High hardness (HRC63-66) with good red hardness and excellent balance of wear resistance and toughness. Quenching at 1190-1230°C.
Applications
Cutting tools, drills, taps, end mills, broaches, reamers, cold work dies, wear-resistant components.
Chemical composition
| Element | Min | Max | Unit | Note |
|---|---|---|---|---|
| C | 0.78000 | 0.88000 | % | — |
| Si | 0.20000 | 0.45000 | % | — |
| Mn | 0.15000 | 0.40000 | % | — |
| Cr | 3.75000 | 4.50000 | % | — |
| Mo | 4.50000 | 5.50000 | % | — |
| W | 5.50000 | 6.75000 | % | — |
| V | 1.75000 | 2.20000 | % | — |
A dash means not provided, not zero. Confirm specifications before ordering.