Precipitation hardening type stainless steel and stainless steel parts, and a method for producing precipitation hardening type stainless steel

摘要

In the precipitation hardening stainless steel according to the present invention, Cr: 7 mass% or more and 17 mass% or less, Ni: 4 mass% or more and 14 mass% or less, Ti: 0.05 mass% or more and 5 mass% or less, Si: 0 mass % To less than 1.0 mass%, Mn: 0.05 mass% or more to 2.0 mass% or less, W: more than 0 mass% to 0.6 mass% or less, V: more than 1.0 mass% 5 mass% or less, the balance being Fe and inevitable impurities.