Haynes® 242® Alloy

UNS N10242
W.Nr N/A

Applications

Seal rings, containment rings, rocket nozzles, pumps, high temperature fluoride bearing environments.

Description

Haynes® 242® alloy is an age hardenable nickel-chromium-molybdenum alloy that combines high temperature strength, low thermal expansion, and good oxidation resistance. It derives its strength from a long range ordering reaction upon aging.

Industries Supplied

Aerospace, Nuclear Fuel Processing and Chemical Processing.

Nominal Composition

C: 0.03 max
Mn: 0.80 max
Si: 0.80 max
P: 0.030 max
S: 0.015 max
Cr: 7.0 - 9.0 
Co: 1.0 max 
Mo: 24.0 - 26.0 
Al: 0.50 max
Fe: 2.0 max
Cu: 0.50 max 
B: 0.00 max 
Ni: Balance

Physical Properties

Density: 0.327 lb/in3, (9.05 g/cm3)

Modulus of Elasticity (E): 
At 70°F (20°C): 33.2 x 103 ksi (229 GPa)

Coefficient of Expansion:
6.8 µin/in.-°F (70°F to 1000°F)
12.2 µm/m-°C (20°C to 538°C)

Electrical Resistivity: 48.0 µΩ.in, (122.0 µΩ.cm)

Thermal Conductivity: 75.7 Btu-in/ft2hr-°F, (11.3 W/m-K)

Applicable Specifications

Strip: ASTM B434

Typical Mechanical Properties

  • Annealed
    • Heat Treatment: 1900 - 2050°F (925 - 1120°C)
    • Tensile Strength: 105 ksi (725 MPa) Min
    • Suggested Operating Conditions: -300°F to 1800°F (-184°C to 982°C)
  • Annealed and Aged
  • Heat Treatment: 1200°F, 24h
  • Tensile Strength: 187 ksi (1288 MPa) typ
  • Suggested Operating Conditions: -300°F to 1800°F (-184°C to 982°C)

  • Haynes® and Haynes 242® are registered trademarks of Haynes International, Inc.

    For further information Contact:

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