Alloy MP35N® : Tough, Strong, Superalloy
Background
CWI Nickel Prime Series MP35N® is a multi-phase, nickel-cobalt based alloy that has a unique combination of ultrahigh tensile strength, good toughness and excellent corrosion resistance.

MP35N® is a true superalloy: it maintains its toughness, ductility, and corrosion resistance in a range of environments from cryogenic temperatures up to 850°F (454°C), and is virtually immune to crevice and stress corrosion. MP35N® is highly resistant to sulfide stress corrosion cracking and provides excellent performance in the most demanding sour well environments, making it a highly sought-after alloy for oil & gas extraction. It's a preferred choice for jobs and applications like medical devices, aerospace engines, and springs.
Chemical Composition
Cr: 19.0-21.0%, Mo: 9.0-10.5%, Ni: 33.0-37.0% and Co: Balance per AMS 5844
Qualifying Specifications and Standards
Standard | Designation |
UNS | R30035 |
AMS | 5758, 5844, 5845 |
NACE | MR0175, MR0103 |
ASTM | F-562 |
BS | 7252-6 |
ISO | 5832-6 |
Applications
Due to Alloy MP35N®'s high combination of strength, high modulus values, and good corrosion resistance, Alloy MP35N® is used in:
- Medical Devices
- Dental Products
- Aerospace and Defense
- Fasteners
- Oil & Gas
- Engines
- Pressure Housings
- Springs
- Torsion Bars
- Seals
Availability & Forms
Alloy MP35N® is a stocked product at Central Wire Industries. Lead times vary based on processing required to finished form, but raw material is available at many Central Wire locations. Central Wire makes Alloy MP35N® available in the following forms:
- Bar Stock
- Drawn wire
- Spring Wire
- Drawn fine wire (.001” - .020")
- Rolled Strip
- Shaped and Profiled wire
Request a Quotation
Please contact us for additional details, product availability, and any other questions you may have. Send an inquiry to sales@centralwire.com, or complete our inquiry form and we will respond as soon as possible.