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MP35N® Alloy Steel Bar - AMS 5844


MP35N® alloy steel bar is a nickel, chromium, cobalt alloy. This grade is non-magnetic and possesses an ultra-high tensile strength, and provides for good ductility.  This alloy has a maximum 750 degree F temperature capability.  In addition, it has excellent corrosion resistance as well to chloride solutions, mineral acids, and in hydrogen – sulfides. 

The ability of MP35N® to resist stress-corrosion and crevice corrosion often leads to to its selection as a fastener material, although its uses also include petrochemical equipment, racing engines and submersibles.  This alloy is typically work-strengthened and aged to obtain strength levels of 260 to 300 ksi.


  • MP35N®
    MP35N®

MP35N® Bar

Standard Inventory Specifications

  • AMS 5844
  • SPS-M-663
  • GE-S400/S1000
  • RR SABRe Edition 2

Inventory Size Range

  • Round Bar Stock : 0.325", 0.385", 0.525", 0.587", 0.649"

Please contact us for more details.

The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.

MP35N® is a trademark of SPS Technologies, Inc. MP is a registered trademark of SPS Technologies, Inc.

Chemical Composition of MP35N®

Element Percent By Weight
C Carbon 0.02% max
Mn Manganese 0.15% max
P Phosphorus 0.015% max
S Sulfur 0.010% max
Si Silicon 0.015% max
Cr Chromium 19.00 - 21.00%
Ni Nickel 33.00 - 37.00%
Mo Molybdenum 9.00 - 10.50%
Co Cobalt Balance
Ti Titanium 1.00% max
B Boron 0.010% 
Fe Iron 1.00% max

Common Applications

  • Aerospace Fasteners
  • Tie rods
  • Space shuttle structures
  • Chemical Processing
  • Medical
  • Cryogenic equipment
  • Marine equipment
  • Oil & Gas
  • Food Processing


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