Hardened Tool Steel DIN 1.2083H 420H S136H Plastic Alloy Tool Mould Steel Plate

S136H is a plastic mould steel with excellent corrosion resistance, excellent production characteristics, high precision steel polishing, excellent corrosion resistance, heat treatment less deformation.

Grades Comparison

Chemical Composition(%)

HEAT TREATMENT:

Soft annealing:
750 to 800°C for about 2 to 5 hours
slow controlled cooling of 10 to 20°C per hour to about 650°C; further cooling in air, max. 200 HB

Hardening:
1000°C to 1050°C
15 to 30 minutes keeping curing temperature
quenching in oil/compressed gas/hot bath
obtainable hardness: 53 - 56 HRC

Tempering:
slow heating to tempering temperature immediately after hardening;
minimum time in furnace: 2 hours per 20 mm part thickness;
Tempering twice is recommended.

Application:
mold plates and inserts for working with chemically aggressive plastics; because of excellent polishing, suitable for optical and medical products

S136H advantages:
1. lower maintenance costs:
After long-term use of the mould, the cavity surface remains the original smooth state. No special protection is required when the mold is operated or stored in wet conditions.
2. lower production costs:
Mold is not due to the impact of cooling water and corrosion, due to a certain cooling cycle, increase mold life. The benefits listed above, combined with the high wear resistance of the S136H, provide low maintenance costs and high life molds for optimum economics. At the same time S136H after "ESR" refining, with pure and subtle organization, the mold has a very good overall mechanical properties, high polishing performance.

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