Free-cutting steel having high fatigue strength

Details Free-cutting steel having high fatigue strength Free-cutting steel having high fatigue strength

1988-10-14

1990-04-10

Yee, Deborah

Alloys or metallic compositions

Ferrous

Lead, bismuth, selenium, tellurium or calcium containing

420 87, C22C 3860, C22C 3812

Patent

active

049159003

ABSTRACT:
A free-cutting steel having a high fatigue strength which consists essentially of 0.30-0.50% C, 0.10-0.50% Si, 0.50-1.00% Mn, 0.04-0.12% S, 0.005-0.20% V, 0.005-0.018% Al, 0.05-0.30% Pb, and 0.001-0.006% Ca by weight, and as the remainder, Fe and inevitable impurities. It may additionally contain 0.50% or less of Cr.

REFERENCES:
patent: 3876422 (1975-04-01), Cantera et al.
patent: 4265660 (1981-05-01), Giflo

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