Carburized bearing members

Details Carburized bearing members Carburized bearing members

1976-01-23

1977-01-25

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

75128W, 75128V, 148 36, C22C 3844, C22C 3846

Patent

active

040049523

ABSTRACT:
Alloy for carburized bearing members intended to be used at operating temperatures up to 1,000.degree. F, characterized in having the ability to achieve and retain high surface hardness after carburization coupled with good hot-workability which enables billets formed from the alloy to be pierced in a seamless tube-forming operation. Also described is the method for heat treating such an alloy to achieve the desired surface hardness, on the order of Rockwell C58 and higher. The alloy contains, as essential constituents, 0.1 to 0.3% carbon, 0.2 to 1% manganese, 0.2 to 0.6% silicon, from an effective amount up to 1.2% chromium, 2.5 to 3.5% nickel, 4 to 6% molybdenum and 0.25 to .85% vanadium.

REFERENCES:
patent: 2624687 (1953-01-01), McMullan
patent: 3382064 (1968-05-01), Jatczak
patent: 3912553 (1975-10-01), Waid et al.

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