S136

Other

S136 / 1.2083

Stainless plastic mold steel. Excellent corrosion resistance & polishability.

Chemical Composition (%)

C0.36
SI1
MN1
CR13
P0.03
S0.03

Mechanical Properties

Hardness(annealed):≤230 HB;Hardness(hardened):48-54 HRC

Equivalent Standards

AISI 420 Modified

Equivalent Grades

DIN 1.2083 / S136

Applications

Corrosive plastic molds (PVC), food-contact molds

Available Forms

Block,Round

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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