Heat-resistant alloy

Details Heat-resistant alloy Heat-resistant alloy

1990-04-03

1991-05-28

Dean, R.

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420 54, 420 55, 420 62, 420103, 420447, 420449, 4205841, C22C 3848, C22C 1905

Patent

active

050193317

ABSTRACT:
A heat-resistant alloy comprising, in % by weight, 0.3-0.8% of C, 0.5-3% of Si, over 0% to not greater than 2% of Mn, at least 23% to less than 30% of Cr, 40-55% of Ni, 0.2-1.8% of Nb, over 0.08% to not greater than 0.2% of N, 0.01-0.5% of Ti and/or 0.01-0.5% of Zr, and the balance Fe and inevitable impurities. The alloy is usable at high temperatures exceeding 1100.degree. C. with high creep rupture strength and excellent resistance to oxidation and to carburization, further exhibiting high creep deformation resistance at high temperatures and high ductility after aging.

REFERENCES:
patent: 2553330 (1951-05-01), Post et al.
patent: 2955934 (1960-10-01), Emery
patent: 4448749 (1984-05-01), Sugitani et al.

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