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ELGILOY SPECIALTY METALS

Strip – MP35N® Alloy

Strip – MP35N® Alloy

MP35N® Alloy

UNS R30035
W.Nr 2.4999

Applications

Seals, springs, medical devices & implants

Description

Type MP35N® is a non-magnetic Cobalt-Nickel-Chromium-Molybdenum alloy having an excellent combination of very high strength, excellent corrosion resistance and high fatigue strength.  MP35NÒ is highly resistant to sulfide stress corrosion cracking and provides excellent performance in the most demanding sour well environments. In seawater MP35NÒ is virtually immune to crevice and stress corrosion and pitting even at the highest strength levels and can operate at cryogenic temperatures up to 850oF (454oC).

Industries Supplied

Oil & Gas Extraction, Medical & Dental, Aerospace, Defense and Space Exploration

Nominal Composition

C: 0.25 max
Mn: 0.15 max
Si: 0.15 max
P: 0.015 max
S: 0.01 max
Cr: 19.0 – 21.0
Ni: 33.0 – 37.0
Ti: 1.0 max
Fe: 1.0 max
Co: bal
Mo: 9 – 10.5

Physical Properties

Density: 0.304 lb/in3, (8.42 g/cm3)

Modulus of Elasticity (E):
At 70°F (20°C): 33.8 x 103 ksi (233 GPa)

Modulus of Rigidity (G)
At 70°F (20°C):  12.1 x 103 ksi (83.4 GPa)

Coefficient of Expansion:
8.2 microinches/in-oF (70-600oF)
14.8 x μm/m-oC (20-300oC)

Electrical Resistivity: 40.6 µohm-in, (103 µohm-cm)

Thermal Conductivity:
78 Btu-in/ft2hr-°F
11.2 W/m-K

Applicable Specifications

Strip and Foil: ASTM F688, NACE MR0175/ISO 15156, NACE MR0103

Typical Mechanical Properties

  • Annealed
    • Heat Treatment: 1900-2150°F (1040-1175°C)
    • Tensile Strength: 115 – 135 ksi (790-930MPa)
    • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C )
  • Spring Temper
    • Heat Treatment: (Stress relieve as needed)
    • Tensile Strength: 200 ksi min  (1380MPa)
    • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C )
  • Spring Temper + Aged
    • Heat Treatment: 1000-1200°F (1040-1175°C)
    • Tensile Strength: 275 ksi min (1900 MPa)
    • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C )

For further information Contact:

Email: stripinquiries@elgiloy.com
Phone: 1 888 843 2350
Elgiloy Specialty Metals – Strip Products
1565 Fleetwood Dr.
Elgin, IL 60123 USA

Limitation of Liability and Disclaimer of Warranty:

  • The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only.  It is not intended for engineering or design.
  • Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals of Chicago L.L.C., does not recommend or endorse any material for any particular end use or application.
  • The data included in this data sheet are typical values and may vary.
  • Elgiloy Specialty Metals, a Division of Combined Metals of Chicago L.L.C., makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.

In no event will Elgiloy Specialty Metals, a Division of Combined Metals of Chicago L.L.C., be liable for any damages whatsoever arising from the use of the information included in the data sheets.