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Rene 41 Plate

Rene 41 Plate is a precipitation hardening, nickel-based high temperature alloy possessing high strength in the 1200/1800°F (649/982°C) temperature range. This alloy is designed for use in severely stressed high temperature applications.

René 41 Plate is an age hardening nickel base superalloy with exceptional strength from room temperature through about 1600°F. The alloy is sensitive to strain age cracking during welding. Sound welds can be made by the resistance and electron beam methods. GTAW using DC straight polarity requires good joint fit-up and cooling by means of copper backup bars or water-cooled fixtures. René 41 Sheet should be in the fully solution treated condition prior to welding. After welding the assembly should be solution treated using rapid heating and cooling rates through the 1200-1600°F range, followed by aging.

Mechanical properties vary with the solution and aging treatments. Higher solution temperatures result in better room temperature ductility and elevated temperature creep-rupture strength. Lower solution temperatures give higher tensile strengths. Two commonly used heat treatments are:

  • Solution treat: 2150°F 4 hours, air cool. Age: Reheat 1650 °F 4 hours, air cool.
  • Solution treat: 1975 °F 4 hours, air cool. Age: Reheat 1400°F 16 hours, air cool.


  • Exceptionally high strength
  • Oxidation resistant through 1800°F
  • Meets MIL-S-46850 specifications
  • Extremely tough
  • Allows close machining with minimal distortion
  • Uniform, predictable shrinkage during heat treatment


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


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

Chemical Composition

MIN 18.00 -- 9.00 10.00 1.40 3.00 0.003 -- -- -- -- -- --
MAX 20.00 Balance 10.50 12.00 1.80 3.30 0.01 0.12 5.00 0.10 0.50 0.015 0.50

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

Nath Metal Ind export products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

HASTELLOY, HAYNES and C-22 are registered trade names of Haynes International, Inc., MONEL & INCONEL are registered trade names of INCO family of companies., NITRONIC is a registered trade name of Armco Inc., CARPENTER & 20Cb-3 are registered trade names of Carpenter Technology Corporation., FERRALIUM is a registered trade name of Langley Alloys, LTD.

Nickel Alloys Materials