High temperature oxidation resistant austenitic steel

Details High temperature oxidation resistant austenitic steel High temperature oxidation resistant austenitic steel

1983-11-21

1985-07-23

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75128E, 75128W, 75128T, 75128G, 75128Z, 75124, 75125, C22C 3838

Patent

active

045307202

ABSTRACT:
The present invention relates to the austenitic steel having improved resistance to oxidation at the high temperature, comprising not more than 0.10% C, 0.1-5.0% Si, not more than 3% Mn, 7-45% Ni, 15-30% Cr and sulfur content being restricted to not more than 0.003%. According to the present invention, by limiting the sulfur content in the austenitic steel to not more than 0.003%, preferably to not more than 0.0015%, the heat-resisting steel material which can show improved resistance to oxidation under severe conditions including repeated heating to high temperatures and cooling to room temperature is provided.

REFERENCES:
patent: 3716354 (1973-02-01), Reen et al.
patent: 3837846 (1977-09-01), Becker et al.
patent: 3989514 (1976-11-01), Fujioka et al.
patent: 4007038 (1977-02-01), Deverell
patent: 4102677 (1978-07-01), Deverell
patent: 4108641 (1978-08-01), Fujioka et al.
patent: 4141762 (1979-12-01), Yamaguchi et al.
Neue Hutte, vol. 16, No. 2, pp. 72-77.
Stahl und Eisen, vol. 96, No. 20, (1976), pp. 960-964; vol. 87, No. 1, (1967), pp. 28-34 and vol. 96, No. 1, (1976), pp. 21-27.
Hutte, "Taschenbuch Fur Eisenhuttenleute", by Peter Spiekermann, pp. 1242-1243 and 1254, 1961.
Handbuch der Sonderstahlkunde, by Eduard Houdremont, pp. 827-828, 1956.

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