Most common grade; high strength, hardness, and corrosion resistance. S17700
You can find detailed technical data and full specification excerpts at these sources: Full Specification PDF (Archive): ASTM A564/A564M-02 PDF for scope and chemical requirements. UNS S17400 Datasheet: Detailed breakdown of 17-4 PH properties under A564 Grade 630 Technical Data: Product specifications from astm a564 pdf
The ASTM A564 PDF can be accessed through various sources, including: Most common grade; high strength, hardness, and corrosion