Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1974-08-12
1976-07-13
Steiner, Arthur J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75128A, 75128E, 75128G, 75128V, 75128W, 148 38, C22C 3858
Patent
active
039691098
ABSTRACT:
An austenitic stainless steel which in solution treated condition exhibits excellent strength, hardness, and resistance to oxidation and sulfidation at elevated temperature, comprises from about 0.20 to about 0.50% carbon, about 0.01 to about 3.0% manganese, about 18 to about 35% chromium, about 0.01 to about 15% nickel, about 0.30 to about 1.0% nitrogen, about 0.10% maximum phosphorus, about 0.40% maximum sulfur, about 2% maximum silicon, up to about 0.75% cerium, and remainder substantially iron. Manganese is preferably restricted to a maximum of about 2.5% in combination with a preferred minimum chromium content of 21%. The steel has particular utility for fabrication into valves and valve parts for high performance diesel engines and gasoline engines, wherein exhaust valve temperatures are encountered within the range of about 1100.degree. to about 1600.degree. F and higher.
REFERENCES:
patent: 2393778 (1946-01-01), Hull
patent: 2438824 (1948-03-01), Rich
patent: 3554736 (1971-01-01), Kusaka et al.
patent: 3567434 (1971-03-01), Richardson et al.
patent: 3592635 (1971-07-01), Hatano et al.
"Phase Relationships in the Fe-Cr-Ni-N System," Tisinai, et al., Trans. ASM, vol. 51, 1957.
Armco Steel Corporation
Steiner Arthur J.
LandOfFree
Oxidation and sulfidation resistant austenitic stainless steel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxidation and sulfidation resistant austenitic stainless steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxidation and sulfidation resistant austenitic stainless steel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1737284