20CrMoVTiB4-10
Stainless Steel20CrMoVTiB4-10
Heat-resistant stainless for turbine blades & bolts. (EN 10269; equiv EN 1.4923 / DIN X22CrMoV12-1). Nominal values—confirm mill certificate.
Chemical Composition (%)
| C | 0.18 |
|---|---|
| SI | 0.1 |
| CR | 11 |
| MO | 0.8 |
| NI | 0.3 |
| V | 0.2 |
Mechanical Properties
Tensile:≥950 MPa;Yield:≥750 MPa;Elong:≥13%
Chinese Standard
EN 10269 20CrMoVTiB4-10
Equivalent Standards
DIN X22CrMoV12-1
Equivalent Grades
EN 1.4923
Applications
汽轮机叶片/螺栓用耐热不锈钢。,"Bar
Available Forms
Forging"
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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