A precipitation-hardenable nickel-chromium superalloy, Rene 41 exhibits extremely high room and elevated temperature tensile properties.

With the addition of significant amounts of cobalt and molybdenum, Rene 41 has exceptional strength from room temperature up to 871°C.

  • UNS Number: N07041
  • Werkstoff Number: 2.4973
  • AMS: 5545, 5712, 5713, 5800

Product availability

Round Bar

Chemical analysis



  • Missile components
  • Bolting
  • Springs
  • Nozzle partitions in jet engines
  • Turbine blades in jet engines
  • Wheels in jet engines
  • Combustion liners in jet engines

About Rene 41

For an exceptionally high strength alloy, which also offers outstanding oxidation resistance look no further than Rene 41.

Rene 41 is a precipitation-hardenable nickel-chromium superalloy with exceptionally high strength due to the addition of aluminium and titanium. The alloy also offers outstanding oxidation resistance up to 871°C.

To learn more about Rene 41 contact us, or fill in our online quote form and we’ll get right back to you!

  • Density: 8.249 g/cm³
  • Melting range: 1307-1343°C

Mechanical & Physical Properties

Mechanical & Physical Properties21°C427°C538°C649°C760°C871°C982°C
Ultimate Tensile Strength /MPa1261.7--11171048710.2-
0.2% Yield Strength /MPa820.5--765.3751.5579.2-
Elongation %21--141411-
Coefficient of Thermal Expansion µm/m⁰C-13.313.714.315.115.516.7
Thermal Conductivity /kcal/(hr.m.°C)-14.416.117.919.621.4-
Modulus of Elasticity / x105 MPa-21.931.791.721.651.52

Typical Rupture Strength, Heat Treated, Sheet

Temperature, °C 649°C 760°C 871°C
100 Hours, ksi1076323
1,000 Hours, ksi904313
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