Alloys for exhaust valves

Details Alloys for exhaust valves Alloys for exhaust valves

1985-04-02

1986-12-23

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

420447, C22C 1905

Patent

active

046311696

ABSTRACT:
An alloy for use in exhaust valves is disclosed, which consists by weight percentage of 0.01.about.0.15% of C, not more than 2.0% of Si, not more than 2.5% of Mn, 53.about.65% of Ni, 15.about.25% of Cr, 0.3.about.3.0% of Nb, 2.0.about.3.5% of Ti, 0.2.about.1.5% of Al, 0.0010.about.0.020% of B, and the remainder being substantially Fe. If necessary, the alloy further contains at least one element selected from 0.001.about.0.030% of Mg, 0.001.about.0.030% of Ca and 0.001.about.0.050% of REM.

REFERENCES:
patent: 3573901 (1971-04-01), Economy

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