Alloy 80A offers outstanding creep resistance properties.

A precipitation hardened alloy, Alloy 80A offers high tensile and creep rupture properties up to 815ºC.

  • UNS Number: N07080
  • Werkstoff Number: 2.4952/2.4631
  • ASTM: B637, MSRR 7004, 7022, 7063, 7070, 7162, 7193, 7952, BS: HR 203, 3HR1, HR3, HR4, BSRHR 601

Product availability

Round Bar
Welding Wire

Chemical analysis



  • Aircraft or marine turbine rotors
  • Exhaust valves
  • Diesel engine combustion chambers
  • High-strength fasteners

About Alloy 80A

Alloy 80A demonstrates excellent corrosion resistance combined with high mechanical properties and creep resistance up to 815ºC. Good machinability and weldability make the alloy perfect for use in a variety of markets including aerospace, oil and gas and motorsport.

For more information on this alloy, or to get a quote fill in our online quote form or contact us.

  • Density: 8.19 g/cm³
  • Melting Range: 1320 - 1365°C
  • Specific Heat Capacity: 448 J/kg.°C
  • Electrical Resistivity: 1.24 µΩ.m

Mechanical & Physical Properties

Mechanical & Physical Properties21.1°C93.3°C148.9°C204.4°C315.6°C371.1°C426.7°C537.8°C595°C648.9°C705°C760°C815°C982°C
Ultimate Tensile Strength /Mpa, +11861180116211571122111511051082105899692676762594
0.2% Yield Strength /Mpa +75174974074974474274574674172566760046459
Reduction of area % +32323333343436363636353536>60
Elongation % +4645454546454747434042475875
10,000 hr Rupture Strength, MPa-------600440-22013054-
Coefficient of Thermal Expansion /µm/m°C **12.712.712.713.313.714.114.114.4-15-
Thermal Conductivity /kcal/(hr.m.°C) **9.639.989.9812.3813.8515.3115.3116.68-17.89-21.0721.0724.42
Modulus of Elasticity / GPa183179179173168163163157-150-142134112
Proud members of the British Valve & Actuator AssociationProud members of the British Valve & Actuator Association