An extremely strong precipitation hardened stainless steel
- Well suited for high strength applications
- Up to 4x stronger than 316 stainless steel
- Maintains its mechanical strength up to 600°F
- 17-4PH Chemistry & Specifications
- 17-4PH Datasheet
17-4 PH flanges are made from a precipitation hardened stainless steel most known for its exceptional strength and its ability to maintain its mechanical properties to 600°F. Compared to 316 stainless steel, 17-4 PH flanges yield strength is up over 4 times greater. When compared to Duplex 2205 flanges, the yield strength of 17-4 PH can be up to 2-½ times greater.
17-4 flanges are available in 8 different aged (precipitation hardened) conditions offering a variety of mechanical properties (see below).
17-4PH Specifications: UNS S17400, Werkstoff 1.4542, AISI 630, ASTM A564-630, AMS 5604 Sheet, Strip and Plate, ASTM A 693 Plate
ASTM A564 GR 630
This specification covers bars and shapes (such as fasteners) of age hardened stainless steels such as 17-4PH. It includes hot-finished or cold-finished fasteners that are produced by hot rolling, extruding, or forging. Grade 630 shall be furnished in the solution-annealed or or age-hardened condition.