Metal treatment – Compositions – Heat treating
Patent
1978-07-28
1980-08-19
Rutledge, L. Dewayne
Metal treatment
Compositions
Heat treating
75125, 148142, C22C 3920
Patent
active
042182689
ABSTRACT:
A high corrosion resistant and high strength medium Cr and low Ni stainless cast steel which is produced from material including predetermined amounts of elements at predetermined weight percentage and remaining portion substantially of Fe. When the above material is further subjected to heat treatments under predetermined conditions, stainless steels superior in yield strength and having stable corrosion resistance against circumstances influenced by strong acids are presented.
REFERENCES:
patent: 3376780 (1968-04-01), Tanczyn
patent: 3551142 (1970-12-01), Decroix
patent: 3567434 (1971-03-01), Richardson
patent: 3730785 (1973-05-01), Conrad, Sr. et al.
patent: 3795507 (1974-03-01), Allen
patent: 3811875 (1971-05-01), Goda
patent: 3926685 (1975-12-01), Guessier et al.
patent: 4055448 (1977-10-01), Fujikura et al.
Stahlschlussel, 10th Ed. 1974, p. 6.
Akamatsu Katsutaro
Hiraishi Hisashi
Morichika Toshiaki
Murakami Shinichi
Kubota Ltd.
Rutledge L. Dewayne
Skiff Peter K.
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