Precipitation hardening stainless steel powder for powder metallurgy, compounds, granulated powder and precipitation hardening stainless steel sintered body

摘要

PROBLEM TO BE SOLVED: To provide a compound and granulation containing a precipitation hardening stainless steel powder for powder metallurgy, which can suppress deterioration of characteristics due to oxidation when subjected to degreasing by an acid degreasing method, and a precipitation hardening stainless steel powder for powder metallurgy. Provided are powders and precipitation hardening stainless steel sintered bodies in which deterioration of characteristics is suppressed. SOLUTION: Fe is a main component, Ni is contained in a ratio of 3.00% by mass or more and 5.00% by mass or less, and Cr is contained in a ratio of 15.00% by mass or more and 17.50% by mass or less. , Cu is contained in a ratio of 3.00% by mass or more and 5.00% by mass or less, Nb is contained in a ratio of 0.15% by mass or more and 0.45% by mass or less, and Si is contained in a ratio of 0.30% by mass or more and 1 It is contained in a ratio of .00% by mass or less, and Mn is contained in a ratio of the mass ratio of Si content to Mn content to be 2.00 or more and 6.00 or less, and is used for degreasing by the acid defatting method. Precipitated and hardened stainless steel powder for powder metallurgy, which is characterized by being provided. [Selection diagram] None