PH 13-8 Mo

UNS S13800 stainless
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Martensitic precipitation-hardening stainless steel with very high strength and excellent toughness at low temperatures. Molybdenum addition provides pitting corrosion resistance.

Applicable Standards

  • AMS 5629
  • AMS 5864
  • ASTM A693

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Fe 74.0 82.0 ~78.0
Cr 12.25 13.25 ~12.75
Ni 7.5 8.5 ~8.0
Mo 2.0 2.5 ~2.25
Al 0.9 1.35 ~1.12
C — 0.05 ~0.03
Fe 74.0–82.0% Cr 12.25–13.25% Ni 7.5–8.5% Mo 2.0–2.5% Al 0.9–1.35% C 0.0–0.05%

Typical Applications

  • Aerospace structural components
  • Landing gear parts
  • Valve components
  • Nuclear waste containers
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