MP35N
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MP35N® is an age-hardened, nonmagnetic, biocompatible cobalt-nickel-chromium alloy with molybdenum added for corrosion resistance. It is often triple-melted to insure purity, stability, and overall performance. This is achieved by adding an electroslag remelt (ESR) in between the typical vacuum induction melt (VIM) and vacuum arc remelt (VAR).

Among it's uses in the medical industry are:

  • Orthopedic wires and cable
  • Catheters
  • Pacing lead wire conductors
  • Stylets and probe wires

MP35N® is also referred to as:

  • UNS R30035
  • ASTM F562
  • 35Co-35Ni-20Cr-10Mo
  • NACE MR-0175

Chemical Data, Mechanical Data and Specifications for MP35N Cobalt Chrome.

Chemical

Chemical Range for MP35N®
Element Minimum Maximum
Boron -- 0.010
Carbon -- 0.03
Chromium 19.0 21.0
Cobalt Balance --
Iron 0.01 1.00
Manganese -- 0.15
Molybdenum 9.00 10.50
Nickel 33.00 37.00
Phosphorus -- 0.015
Silicon -- 0.15
Sulphur -- 0.010
Titanium -- 1.00

Mechanical

Typical Mechanical Properties for MP35N®
Form Tensile Strength Yield Strength Elongation at Break
Annealed 130 ksi 55 ksi 65%

Specs

Applicable Specifications
Rod AMS 5844, Capable of AMS 5845, ASTM F562, NACE MR-0175
UNS R30035

MP35N is a registered trademark of SPS Technologies.