AMS 5844

MP35N per AMS 5844 Alloy, Corrosion-Resistant, Round Bars, 20Cr – 35Ni – 35Co – 10Mo, Vacuum Induction Plus Consumable Electrode Vacuum Remelted, Solution Heat Treated and Work Strengthened


MP35N 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.  

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.


AMS 5844 is generally heat treated to achieve AMS 5845 condition which is a common AMS specification for the Orion program.