9Cr5Mo1V

Other

9Cr5Mo1V

High-C high-Cr cold-work tool steel. (GB/T 1299; equiv GB Cr12 / DIN 1.2080 / JIS SKD1). Nominal values—confirm mill certificate.

Chemical Composition (%)

C2
SI0.4
MN0.4
CR11.5

Mechanical Properties

Hardness:≥58 HRC

Chinese Standard

T 1299 9Cr5Mo1V

Equivalent Grades

GB Cr12 / DIN 1.2080 / JIS SKD1

Applications

高碳高铬冷作模具钢。,"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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