D6
OtherD6
Specialty steel grade. ie steel. (ASTM A681; equiv ASTM A681 / DIN 1.2379 / JIS SKD11 / GB Cr12MoV). Nominal values—confirm mill certificate.
Chemical Composition (%)
| C | 1.4 |
|---|---|
| CR | 11 |
| W | 0.5 |
| MO | 0.5 |
| V | 0.5 |
| MN | 0.1 |
| SI | 0.1 |
| P | 0.03 |
| S | 0.03 |
Mechanical Properties
Hardness(annealed):≤255 HB;Hardness(hardened):60-64 HRC
Chinese Standard
ASTM A681 D6
Equivalent Standards
ASTM A681
Equivalent Grades
DIN 1.2379 / JIS SKD11 / GB Cr12MoV
Applications
高铬冷作模具钢。,"Bar
Available Forms
Block"
Uses
Martensitic stainless steel combining moderate corrosion resistance with high strength and hardness after heat treatment. Used for cutlery, surgical instruments, turbine blades, valves, pumps, fasteners and bearings in mildly corrosive environments.
Heat Treatment
Annealing/quench from 980–1050 °C (oil or air) then temper 150–650 °C; lower temper gives higher hardness, higher temper improves toughness.
Precautions
Preheat and post-weld heat treat to avoid hydrogen cracking; soft anneal before heavy machining. Lower corrosion resistance than austenitic grades — not for strong chlorides.
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