630 (17-4 PH) stainless steel alloy is an age-hardening martensitic stainless combining high strength with the corrosion resistance of stainless steel. Hardening is achieved by a short-time, simple low-temperature treatment. Unlike conventional martensitic stainless steels, such as type 410, 630 (17-4 PH) Alloy is quite weldable. The strength, corrosion resistance and simplified fabrication can make 17-4 PH stainless a cost-effective replacement for high strength carbon steels as well as other stainless grades.
630/ 17-4 PH Stainless Steel Alloy Heat Treatment
At the solution treating temperature, 1900°F, the metal is austenitic but undergoes transformation to a low-carbon martensitic structure during cooling to room temperature. This transformation is not complete until the temperature drops to 90°F. Subsequent heating to temperatures of 900-1150°F for one to four hours precipitation strengthens the alloy. This hardening treatment also tempers the martensitic structure, increasing ductility and toughness.King Steel Contact: kingsteelpipe@gmail.com. For our newly steel plates and pipes stock and price, welcome to send inquiry to us.
Specifications available from stock or indent
630/ 17-4 PH Stainless Steel Alloy Specification:
Standard: AMS 5604, AMS 5643, AMS 5825ASME SA 564, ASME SA 693, ASME SA 705, ASME Type 630
ASTM A 564, ASTM A 693, ASTM A 705, ASTM Type 630
ISO 15156-3
NACE MR0175
S17400
UNS S17400
W. Nr./EN 1.4548