17-7PH ( SUS631, S17700, AISI631, DIN1.4568) is a precipitation hardening martensitic stainless steel with Al additions. This material combines high strength and hardness, good corrosion resistance, excellent fatigue properties, good formability and minimum distrotion upon heat treatment.  The materials are well suited for aerospaces applications or for the parts requiring formability, strength and good corrosion resistance. 

Standard: ASTM A313.

We offer the materials in forms of stainless steel round rod, stainless steel square bar, stainless steel hexagon bar, stainless steel wire rod, stainless steel forging, stainless steel flat strip, stainless steel forged cylinder, stainless steel forged ring, stainless steel forged tube sheet.

As per the customer’s request, 17-7PH ( SUS631, S17700, AISI631, DIN1.4568) will be furnished in the Condition A, Condition RH950, TH1050. The mechanical properties are altered by different age hardening treatments.