Monthly Archives: January 2023

17-4 PH stainless steel material introduction

17-4PH Executive standard: American ASTMS17400, ASTM A564 630, UNS630 17-4PH is a martensitic precipitation hardening stainless steel. In addition to directly obtaining martensitic structure after solid solution treatment, this steel is further strengthened by subsequent aging treatment-obtaining precipitation hardening phase (copper-containing phase). 17-4PH is a precipitated, hardened, martensitic stainless steel composed of copper, niobium/columbium. This…