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EN 10269 NiCr15Fe7TiAl: Heat-Treated & Precipitation-Hardened Grade for High-Temperature Applications

Material NiCr15Fe7TiAl, similar to NiCr15Fe (2.4816), but hardenable by addition of aluminium and titanium. Good resistance to corrosion and oxidation as well as high tensile and creep strength at temperatures up to approx. 700 °C This trademark is due to its very good relaxation behavior suitable for high temperature loaded springs and screws. Application in gas turbines, rocket engines, nuclear reactors, pressure vessels, tools and in aircraft construction. Processing properties: formability: well (annealed) weldability: satisfactory (annealed) Further application for mounting elements at increased temperatures.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.2 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

215 GPa

100.0 °C

208 GPa

200.0 °C

200 GPa

300.0 °C

192 GPa

400.0 °C

183 GPa

500.0 °C

175 GPa

600.0 °C

165 GPa

700.0 °C

150 GPa

800.0 °C

131 GPa

Elongation

20.0 °C

20 %

Reduction of area

20.0 °C

28 %

Tensile strength

20.0 °C

1000 - 1200 MPa

50.0 °C

1000 - 1117 MPa

100.0 °C

975 - 1103 MPa

150.0 °C

950 - 1096 MPa

200.0 °C

900 - 1090 MPa

250.0 °C

900 - 1082 MPa

300.0 °C

900 - 1075 MPa

350.0 °C

900 - 1055 MPa

400.0 °C

900 - 1035 MPa

450.0 °C

900 - 1000 MPa

500.0 °C

590 - 975 MPa

550.0 °C

880 - 950 MPa

600.0 °C

850 - 896 MPa

650.0 °C

827 MPa

Yield strength Rp0.2

20.0 °C

650 MPa

50.0 °C

625 MPa

100.0 °C

620 MPa

150.0 °C

615 MPa

200.0 °C

610 MPa

250.0 °C

606 MPa

300.0 °C

601 MPa

350.0 °C

596 MPa

400.0 °C

592 MPa

450.0 °C

587 MPa

500.0 °C

582 MPa

550.0 °C

578 MPa

600.0 °C

573 MPa

650.0 °C

565 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.26E-5 1/K

200.0 °C

1.3E-5 1/K

300.0 °C

1.34E-5 1/K

400.0 °C

1.39E-5 1/K

500.0 °C

1.44E-5 1/K

600.0 °C

1.48E-5 1/K

Max service temperature, long

0 - 700 °C

Melting point

1400 °C

Typical for Nickel Chromium Alloy

Specific heat capacity

20.0 °C

431 J/(kg·K)

Thermal conductivity

20.0 °C

12 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.21E-6 Ω·m

Chemical properties

PropertyValue

Aluminium

0.4 - 1 %

Carbon

0.08 %

Chromium

14 - 17 %

Cobalt

1 %

Copper

0.5 %

Iron

5 - 9 %

Manganese

1 %

Nickel

70 %

Phosphorus

0.02 %

Silicon

0.5 %

Sulfur

0.015 %

Titanium

2.25 - 2.75 %


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