Super mild steel having excellent workability and non-aging prop

Details Super mild steel having excellent workability and non-aging prop Super mild steel having excellent workability and non-aging prop

1976-08-16

1978-11-28

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

75124, 75126F, 148 12C, 148 12F, C22C 3806, C22C 3828

Patent

active

041274270

ABSTRACT:
The present invention relates to a super mild steel (a very low yield point steel) having excellent workability and nonaging properties, which consists of in weight percent up to 0.07% C, up to 0.5% Si, up to 0.5% Mn, of 0.005 to 0.1% Al and up to 0.22% [C+1/5(Si+Mn)], and 0.1 to 1.3% Cr when Cr is only added or 0.1 to 1.3% Cr and 0.015 to 0.15% Zr when Cr and Zr are simultaneously added, the balance being iron and inevitable impurities.

REFERENCES:
patent: 3574602 (1971-04-01), Gondo et al.
patent: 3666570 (1972-05-01), Korchynsky et al.
patent: 3671336 (1972-06-01), Korchynsky et al.
patent: 3689258 (1972-09-01), Zonetti
patent: 3711340 (1973-01-01), Korchynsky et al.
patent: 4054447 (1977-10-01), Tenmyo et al.

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