MP35N is a nickel-cobalt base multiphase alloy that exhibits extremely high strength characteristics combined with very high toughness, ductility, and excellent corrosion resistance. The alloy primarily gets its strength from cold working, followed by aging. It is capable of reaching strength levels of 1790 - 2090 MPa (260-300 ksi) in its full strength condition. MP35N alloy resists corrosion in hydrogen sulfide, salt water and other chloride solutions, and mineral acids such as nitric, hydrochloric, and sulfuric acid. It also has excellent resistance to crevice corrosion cracking in a variety of severe environments including seawater. The amount of cold working can be controlled in order to achieve the best balance of strength and resistance to stress corrosion cracking.

Applications
MP35N has been used in the oil and gas industry for seals, shafts, springs and other components that require high strength in very severe environments. It is also used in non-magnetic electrical components which are subject to extremely corrosive environments.