Chemical Composition Weight % Ni Co Cr Mo Ti Fe Si Mn P B S C MP35N 33-37 Bal 19-21 9-10.5 1 max 1 max 0.15 max 0.15 max 0.015 max 0.010 max 0.010 max 0.03 max

Mechanical Properties Material Condition Ultimate Tensile Strength ksi 0.2 % Yield Strength ksi Elongation % Reduction of Area % Hardness HRC MP35N AMS 5844 Solution Heat Treated and Work Strengthened 255 225 12 50 45 MP35N AMS 5845 Solution Heat Treated and Work Strengthened and Aged 260 230 8 35 38 min

Chemical Composition Weight % Ni Co Cr Mo Ti Fe Si Mn P B S C MP35N 33-37 Bal 19-21 9-10.5 1 max 1 max 0.15 max 0.15 max 0.015 max 0.010 max 0.010 max 0.03 max

Mechanical Properties Material Condition Ultimate Tensile Strength ksi 0.2 % Yield Strength ksi Elongation % Reduction of Area % Hardness HRC MP35N AMS 5844 Solution Heat Treated and Work Strengthened 255 225 12 50 45 MP35N AMS 5845 Solution Heat Treated and Work Strengthened and Aged 260 230 8 35 38 min

MP35N/UNS R30035

Grade: MP35N/UNS R30035/W.Nr.2.4999

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

MP35N is a multi-phase alloy containing Nickel, Cobalt, Chromium and Molybdenum with a unique range of properties – ultra high strength, toughness, biocompatibility and corrosion resistance. It is produced by vacuum induction melting and vacuum arc re-melting (VIM-VAR) and is then strengthened by work hardening and aging, giving hardnesses of up to 55-60 Rockwell C and strength levels as high as 260-300KSI.
Due to this unique combination of properties, MP35N® has many applications in such industries as oil and gas, aerospace and medical. MP35N can be effectively used at cryogenic temperatures without embrittlement and maintain its properties at temperatures up to 600°F, and is also suitable for medical implants and orthodontic/prosthetic devices.
MP35N is able to resist corrosion to most mineral acid, hydrogen sulfide and seawater environments whilst exhibiting excellent resistance to stress corrosion cracking and hydrogen embrittlement, even at high strength levels. NACE MR0175 allows a hardness of up to 51 HRC for material that has been work strengthened and aged by one of the processes listed in the table below.

Chemical Composition

Weight %

MP35N

33-37

Bal

19-21

9-10.5

1 max

0.15 max

0.015 max

0.010 max

0.03 max

Mechanical Properties

Material	Condition	Ultimate Tensile Strength ksi	0.2 % Yield Strength ksi	Elongation %	Reduction of Area %	Hardness HRC
MP35N AMS 5844	Solution Heat Treated and Work Strengthened	255	225	12	50	45
MP35N AMS 5845	Solution Heat Treated and Work Strengthened and Aged	260	230	8	35	38 min

Applications

MP35N is extremely suitable in environments where a high combination of strength, high modulus values, and good corrosion resistance are required. Some examples of these types of applications, include:
▪ Medical devices
▪ Dental products
▪ Marine engineering
In addition, MP352 can be used to manufacture fasteners, springs, non-magnetic components and instrumentation in medical, seawater, oil and gas wells, chemical and food processing environments.

Introduction

Specification