B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
75/166, 75/1.22
B22F 3/16 (2006.01) C22C 33/02 (2006.01) F28F 21/08 (2006.01)
Patent
CA 1238211
SINTERED STAINLESS STEEL AND PRODUCTION PROCESS THEREFOR Abstract of the Disclosure A sintered stainless steel and sintered seamless steel pipe exhibiting improved resistance to stress corrosion cracking are disclosed. The metallurgical structure comprises a matrix phase and a dispersing phase, which are different from each other in their metallurgical structures, the matrix phase comprising a substantially single ferritic structure, and the dispersing phase comprising a structure selected from the group consisting of an austenitic structure, an austenitic + ferritic dual phase structure, an austenitic + martensitic dual phase structure, and an austenitic + ferritic + martensitic triple phase structure. The sintered seamless stainless steel pipes are useful as heat exchanging tubes and piping to which sea water or industrial water is fed.
476201
Kudo Takeo
Tarutani Yoshio
Osler Hoskin & Harcourt Llp
Sumitomo Metal Industries Ltd.
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