Cronidur 30

Other

Cronidur 30 / X30CrMoN15-1

High-nitrogen stainless bearing steel, max corrosion & fatigue resistance.

Chemical Composition (%)

C0.25
SI0.5
MN0.5
CR14
MO0.85
N0.3
P0.02
S0.005

Mechanical Properties

Hardness(through-hardened):56-60 HRC;Fatigue:≥600 MPa

Chinese Standard

DIN X30CrMoN15-1

Equivalent Standards

AMS 5898

Equivalent Grades

Cronidur 30

Applications

Extreme corrosion bearings, aerospace actuators, medical

Available Forms

Bar,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.

Request a Quote Back to category

Comments 0