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MGM L605 Rods

MP35N


MP35N Cobalt-Alloy

Strength, Corrosion Resistance, Performance

Ultra-High Strength, Corrosion-Resistant Alloy for Medical, Aerospace, and High-Performance Applications

Nickel-Cobalt Base Alloy | UNS R30035 | ASTM F562 | AMS 5844, AMS 5845 | ISO 5832-6 | NACE MR0175

MP35N (UNS R30035), also known in some contexts as MP35M, is a nickel-cobalt-chromium-molybdenum alloy known for its exceptional strength, corrosion resistance, fatigue life, and biocompatibility. This alloy retains excellent mechanical properties at elevated temperatures and is non-magnetic in the annealed condition.
MP35N is used extensively in the medical industry for implantable devices, orthopedic components, surgical instruments, and vascular implants due to its high strength-to-weight ratio and resistance to body fluids and sterilization processes.

 

Key Features

  • ​​Ultra-high strength and fatigue resistance

  • Excellent resistance to pitting, stress-corrosion, and crevice corrosion

  • Biocompatible – ideal for implantable and surgical applications

  • Maintains strength at elevated temperatures

  • Non-magnetic in annealed condition; cold working increases strength significantly

Chemical Composition

Element

Carbon (C)

Manganese (Mn)

Phosphorus (P)

Sulfur (S)

Silicon (Si)

Chromium (Cr)

Nickel (Ni)

Cobalt (Co)

Iron (Fe)

Molybdenum (Mo)

Percentage %

≤ 0.025

≤ 0.15

≤ 0.015

≤ 0.010

≤ 0.15

19.0 – 21.0

35.0 nominal

35.0 nominal

≤ 1.00

9.0 – 10.5

Note: May vary slightly depending on melt source and form (wire or bar).

Material Solutions

  • DFARS & Domestic Melt 

  • Custom sizes, length and finishes

  • Diameters from 0.0254mm to 25.4mm (0.001" to 1.00")

  • Lengths from 152.4mm to 3657.6m (6.00" to 144")

  • ​Ground & Polished finishes  8 RA or better

  • Diameter tolerance as tight as ±0.0001​

Applications

  • Cardiovascular implants (leads, stents, guide wires)

  • Orthopedic fixation systems

  • Surgical and dental tools

  • Aerospace fasteners and springs

  • High-strength, corrosion-resistant components for harsh environments

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