Method of surface hardening stainless steel parts

Details Method of surface hardening stainless steel parts Method of surface hardening stainless steel parts

C - Chemistry, Metallurgy

21

D

148/41

C21D 9/40 (2006.01) C21D 6/00 (2006.01) C23C 8/02 (2006.01)

Patent

CA 1112138

METHOD OF SURFACE HARDENING STAINLESS STEEL PARTS ABSTRACT OF THE DISCLOSURE A method of surface hardening stainless steel parts for increasing their wear and fatigue resistance comprises (a) subjecting the surface of the stainless steel part to a salt bath containing, by weight, up to 0.5% sulphur, 4-30% of a cyanide, and 10-30% of a cyanate, for a time period of a few minutes to two hours, at a temperature of 540-600°C; and (b) then subjecting the stainless steel part to a nitriding process. - 1 -

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