C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/34.2
C21D 8/00 (2006.01) C22C 38/18 (2006.01)
Patent
CA 1263588
ABSTRACT OF THE DISCLOSURE A high-stength, tough alloy steel is formed by heating an alloy steel comprising iron, 0.1-0.4 weight % carbon, 1-3 weight % manganese and 1-13 weight % chromium and optionally containing microalloying amounts of other metals to about 1150°C to form a stable homogeneous austenite phase, control rolling the steel at about 900°C-1100°C, followed by rapid cooling to 950°C and again rolling at that temperature and then quenching the thusly rolled steel in liquid or by air cooling. Tempering at temperatures up to about 300°C may be effected to further increase the toughness of the steel.
506397
Kim Nack J.
Ramesh Ramamoorthy
Thomas Gareth
Advanced Materials & Design Corporation
Kim Nack J.
Ramesh Ramamoorthy
Smart & Biggar
Thomas Gareth
LandOfFree
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