08X22H6T

Stainless Steel

08X22H6T

Highest-Cr ferritic, high-temp oxidation resistant. (GOST 5632; equiv ASTM 446 / EN 1.4762). Nominal values—confirm mill certificate.

Chemical Composition (%)

C0.2
CR23
N0.25

Mechanical Properties

Tensile:≥480 MPa;Yield:≥275 MPa

Chinese Standard

GOST 5632 08X22H6T

Equivalent Standards

ASTM 446

Equivalent Grades

EN 1.4762

Applications

最高铬铁素体，耐高温氧化。,"Sheet

Available Forms

Bar"

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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