Low decarburization spring steel

Details Low decarburization spring steel Low decarburization spring steel

1994-07-27

1995-11-28

Yee, Deborah

Alloys or metallic compositions

Ferrous

Lead, bismuth, selenium, tellurium or calcium containing

148908, C22C 3860

Patent

active

054705282

ABSTRACT:
A low decarburization spring steel consisting essentially of, in weight percentages, 0.40 to 0.75% C, 0.15 to 2.50% Si, 0.30 to 1.20% Mn, 0.005 to 0.100% Al and 0.005 to 0.100% Se, and optionally at least one selected from the group consisting of 0.50 to 2.50% Ni, 0.20 to 1.50% Cr, 0.05 to 1.50% Mo and/or at least one selected from the group consisting of 0.01 to 0.50% V and 0.01 to 0.50% Nb, the balance being Fe and inevitable impurities. The spring steels of this invention considerably reduce decarburization during hot working or heat treatment without recourse to anti-decarburizing agents or special heat treatment equipment.

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