Metal alloy composition with improved wear resistance

Details Metal alloy composition with improved wear resistance Metal alloy composition with improved wear resistance

1977-11-28

1978-06-13

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 962, 277224, 277236, 277DIG6, 75126A, C22C 3818, F16J 1528, F16J 1532

Patent

active

040945146

ABSTRACT:
A ferrous metal alloy and a heavy-duty grit seal having an annular ring made from the alloy. In the preferred form, the alloy includes from about 3.10% to about 3.35% carbon, not more than 1.00% manganese, from about 0.75% to about 1.40% silicon, from about 16.5% to about 19.0% chromium, from about 0.75% to about 2.00% vanadium, from about 2.5% to about 4.0% molybdenum, from about 0.25% to about 1.25% cobalt, from about 1.75% to about 3.00% tungsten, not more than 0.040% phosphorous, not more than 0.040% sulfur, and the remainder being iron. The alloy, when used as a seal ring, provides performance which is nearly as good as extremely costly, specially cast, high performance, wear resistant alloys and does so at greatly reduced cost. The alloy is highly abrasion resistant and withstands severe conditions of mechanical shock and extreme temperature ranges without embrittlement.

REFERENCES:
patent: 3086782 (1963-04-01), Peickii et al.
patent: 3241843 (1966-03-01), Hatch et al.
patent: 3392984 (1968-07-01), Reinsma et al.
patent: 3692515 (1972-09-01), Fletcher et al.
patent: 3940154 (1976-02-01), Olsson

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