SSA2311 Pre-Hardened Plastic Mould Steel

Type of steel and characteristics:
SSA2311 is a 300 HB (32 HRC) pre-hardened grade specially designed for plastic mould industry. Chromium, Molybdenum and Manganese additions are optimized to have a full martensite – bainite microstructure after quenching. The cleanliness of the steel makes the steel particularly well adapted for polishing or chemical etching.

Mould, mould insert with no heat treatment required, good polishability, good machinability, good photoetching properties, high strength and high toughness. Guide ring, mounting plate, ejector plate, ejector pin and retainer plate. Gas and bath nitriding as well as case hardening are possible.

Chemical Composition (%) C Si Mn Cr Mo
0.40 0.30 1.50 2.0 0.20
Nearest Equivalent AISI P20 JIS SKT3 DIN 40CrMnMo7

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