MP35N (UNS R30035)

MP35N (UNS R30035) is an age hardenable Nickel-Cobalt base superalloy that has a unique combination of properties – ultra high strength, toughness, ductility and outstanding corrosion resistance. MP35N resists corrosion in hydrogen sulfide, salt water and other chloride solutions. It also has excellent resistance to crevice and stress corrosion cracking in sea water and other hostile environments. Suitable where a high combination of strength, high modulus values and good corrosion resistance are required.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
MP35N	–	–	MP35N	–	2.4999	–	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Co	Mo	Ti	Fe
MP35N	≤0.025	≤0.15	≤0.15	≤0.01	≤0.01	19.0-21.0	33.0-37.0	Bal	9.0-10.5	≤1.00	≤1.00

Typical Physical and Mechanical Properties (RT, Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
8.41	1315-1440	955	455	50	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	AMS 5844, AMS 5845, ASTM F562
Plate, Sheet and Strip	–
Pipe and Tube	–
Welding Product	–
Others	–

Features

Combination of high strength, ductility and good mechanical properties at ambient temperatures.
Excellent corrosion resistance in hydrogen sulphide.
Excellent resistance to crevice and stress corrosion cracking in sea water.