17-4 PH stainless steel is a precipitation hardening austenitic stainless steel alloy. Its exceptional combination of strength, corrosion resistance, and weldability makes it suitable for a wide range of applications. https://antonzakc147853.wikipresses.com/5054986/specifications_for_17_4_ph_stainless_steel_in_round_bar_plate_sheet_pipe_tube_forms