Low alloy steel for the manufacture of molds for plastics and fo

Details Low alloy steel for the manufacture of molds for plastics and fo Low alloy steel for the manufacture of molds for plastics and fo

1995-10-06

1997-07-08

Yee, Deborah

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

420108, 420110, 148334, 148335, C22C 3832, C22C 3854

Patent

active

056457944

ABSTRACT:
Low alloy steel for the manufacture of molds for plastics or for rubber, the chemical composition of which comprises, by weight, 0.24% to 0.35% of carbon, 1% to 2.5% of manganese, 0.3% to 2.5% of chromium, 0.1% to 0.8% of molybdenum plus tungsten divided by 2, up to 2.5% of nickel, 0% to 0.3% of vanadium, less than 0.5% of silicon, 0.002% to 0.005% of boron, 0.005% to 0.1% of aluminum, 0% to 0.1% of titanium and less than 0.02% of phosphorus. The chemical composition must furthermore satisfy the relationship:

REFERENCES:
patent: 3418110 (1968-12-01), Goda
patent: 4957702 (1990-09-01), Fang et al.

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