Alloy for building up valve

Alloys or metallic compositions – Containing over 50 per cent metal but no base metal – Iron containing

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C22C 3000

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049485598

ABSTRACT:
An alloy for building up a valve according to the present invention comprises: with respect to the total weight of the alloy taken as 100%, 30 to 40% by weight of chromium; 15 to 31% by weight of nickel; 7 to 20% by weight of molybdenum; 0.7 to 2.2% by weight of carbon; 1.5% or less by weight of silicon; and balance of iron and inevitable impurities. The alloy is superior in hardness at high temperatures, PbO resistance and PbO+PbSO.sub.4 resistance. In addition, the alloy is suitable for powder buildup welding.

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