C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/24 (2006.01) C21D 1/18 (2006.01) C21D 1/34 (2006.01) C21D 1/74 (2006.01) C21D 7/10 (2006.01) C22C 33/00 (2006.01) C22C 38/22 (2006.01) C22C 38/46 (2006.01)
Patent
CA 2268623
A die casting die and a Cr-Mo-V steel therefore having an ultimate strength of 190,000 psi, a yield strength of 160,000, a tempering response of 400 BHN at a tempering temperature of 1150°F and final gas contents of N-70 ppm, O-30 ppm and H - about 1.0 following a double vacuum melting process which includes vacuum arc degassing and vacuum arc remelt followed by annealing and heating in two stages to 1885°F, soaking, rapid quenching, tempering twice and stress tempering.
Brada Guy A.
Underys Algirdas A.
A. Finkl & Sons Co.
Cassan Maclean
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