PH13-8Mo AMS 5629

PH13-8Mo AMS 5629 is a precipitation-hardening martensitic stainless steel that has excellent strength, high hardness, superior toughness, and good corrosion resistance.  It is double vacuum melted in a VIM-VAR process.  13-8 PH steel provides a wide range of properties through a single precipitation hardening heat treatment. Its corrosion resistance is similar to 304 stainless, with greatest resistance in the fully hardened conditions.

Stock sizes: 0.500” to 8.000” diameter

Common Specifications:

  • AMS 5629
  • Pratt & Whitney LCS F-17
  • General Electric S-400 / S-SPEC-35
  • ASTM A564; CAPABLE OF H1000
  • ASTM F899 XM-13
  • HMS 6-1105 (EXCEPT SONIC)
  • DMS 2100 GRADE B
  • UNS S13800

Industry Trade Names:

  • PH13-8Mo
  • UNS S13800
  • XM-13

Common Applications:

  • Aerospace components
  • Components in the petrochemical and nuclear industries
  • Injection molding equipment

Composition

Element Min. Max.
Carbon — 0.05
Manganese — .10
Silicon — 0.10
Phosphorus — 0.010
Sulfur — 0.008
Chromium 12.25 13.25
Nickel 7.50 8.50
Molybdenum 2.00 2.50
Aluminum 0.90 1.35
Nitrogen — 0.010