MP35N

UNS R30035 special
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Multiphase Co-Ni-Cr-Mo alloy with ultra-high strength (up to 260 ksi) via cold work and ageing, combined with outstanding corrosion resistance. Used in surgical implants, aerospace fasteners, and springs.

Applicable Standards

  • AMS 5844
  • UNS R30035

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Co 33.0 37.0 ~35.0
Ni 33.0 37.0 ~35.0
Cr 19.0 21.0 ~20.0
Mo 9.0 10.5 ~9.75
Ti — 1.0 ~0.5
Fe — 1.0 ~0.5
Co 33.0–37.0% Ni 33.0–37.0% Cr 19.0–21.0% Mo 9.0–10.5% Ti 0.0–1.0% Fe 0.0–1.0%

Typical Applications

  • Surgical implants
  • Aerospace fasteners
  • Springs
  • Guidewires
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