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MP35N - UNS R30035 Plate

MP35N® is extremely suitable in environments where a high combination of strength, high modulus values and good corrosion resistance are required.

MP35N UNS R30035 Plate is a non-magnetic Nickel-Cobalt-Chromium-Molybdenum Alloy. This unique combination of properties enables ultra high strength, toughness, good ductility and excellent corrosion resistance. MP35N Plate also has exceptional resistance to sulfidation, high temperature oxidation and hydrogen embrittlement. MP35N Plate is used in a wide variety of applications from fasteners, springs, nonmagnetic electrical components, instrument parts in medical, seawater, oil and gas well, and chemical and food processing environments.

Due to these properties, one of the main applications of this grade is as componentes and parts for marine environments like, for instance, cables which conduct sensors for measurements in deep ocean. MP35N  Plate also is used in the automotive and aerospace industries. But, originally, this grade was developed for cirurgical implants. The strength hardening mechanism envolved is complex, involving a solution annealing heat treatment, followed by cold working and finally by an aging (precipitation hardening) heat treatment.


  • Orthodontic and Prosthetic devices
  • Oil Industry, Chemical and Marine equipment – Valve components, springs, high pressure door dogs
  • Aircraft and Aerospace components – springs, leading edge strips
  • High Pulse Magnet Research


  • Shafts
  • Fasteners
  • Blades
  • Seals
  • Rings
  • Turbine discs

Also see 15-5 stainless steel plate


  • UNS : R30035
  • Specifications : AMS 5758, AMS 5844, AMS 5845, ASTM F-562

Chemical Composition

Chemical Analysis


20 nom


35 nom


10 nom


35 nom

Mechanical Properties

Material Condtion Ultimate Tensile Strength ksi 0.2 % Yield Strength ksi Elongation % Reduction of Area % Hardness HRC
AMS 5844
Solution Heat Treated and Work Strengthened 255 225 12 50 45
AMS 5845
Solution Heat Treated and Work Strengthened and Aged 260 230 8 35 38 min

Calico Metal Alloys LLP export products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

HASTELLOY, HAYNES and C-22 are registered trade names of Haynes International, Inc., MONEL & INCONEL are registered trade names of INCO family of companies., NITRONIC is a registered trade name of Armco Inc., CARPENTER & 20Cb-3 are registered trade names of Carpenter Technology Corporation., FERRALIUM is a registered trade name of Langley Alloys, LTD.