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. MP35N® is highly resistant to sulfide stress corrosion cracking and provides excellent performance in the most demanding sour well environments. In seawater MP35N® 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).
Applicable Specifications
Strip and Foil:
ASTM F688, NACE MR0175/ISO 15156, NACE MR0103
Applications
Seals, springs, medical devices & implants
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
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:
CONTACT US
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 Company LLC, 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 Company LLC, 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 Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
