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NiCr6015 Solution Annealed (+AT) – High‑Temperature Heating Conductor Alloy

The material NiCr6015 with the material number 2.4867 is applied in the form of strips and wires (see also heating conductor alloys according to DIN 17470 or electrical resistance alloys according to DIN 17471) for heating conductors and resistors. It is a nickel-iron-chromium heating conductor alloy for operating temperatures of up to 1100 °C and often contains additives of rare earths for a higher resistance to oxidation, especially with frequent switching operations or larger temperature variations. The resistance to atmospheric corrosion at 20 °C is high up to the upper operating temperature the resistance to air and other oxygen-containing gases as well as to nitrogen-containing low-oxygen gases is high as well, yet it is low to oxidizing as well as reducing gases containing sulphur. The resistance to carbonizing is high. The alloy has a relatively high temperature-resistance coefficient. Application for heating elements in household and industrial devices (high-ohm electric resistors).

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.2 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

200 GPa

Elongation

20.0 °C

30 %

Hardness, Brinell

20.0 °C

220 [-]

Tensile strength

20.0 °C

600 MPa

Yield strength Rp0.2

20.0 °C

200 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.35E-5 1/K

200.0 °C

1.4E-5 1/K

400.0 °C

1.5E-5 1/K

600.0 °C

1.55E-5 1/K

800.0 °C

1.6E-5 1/K

Max service temperature, long

0 - 1100 °C

Melting point

1200 - 1480 °C

Typical for Nickel Chromium Iron Alloy

Specific heat capacity

20.0 °C

460 J/(kg·K)

Thermal conductivity

20.0 °C

13 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.1E-6 Ω·m

100.0 °C

1.14E-6 Ω·m

200.0 °C

1.16E-6 Ω·m

300.0 °C

1.18E-6 Ω·m

400.0 °C

1.2E-6 Ω·m

500.0 °C

1.22E-6 Ω·m

600.0 °C

1.21E-6 Ω·m

700.0 °C

1.21E-6 Ω·m

800.0 °C

1.22E-6 Ω·m

900.0 °C

1.23E-6 Ω·m

1000.0 °C

1.24E-6 Ω·m

1100.0 °C

1.26E-6 Ω·m

1200.0 °C

1.28E-6 Ω·m

Chemical properties

PropertyValue

Aluminium

0.3 %

Carbon

0.15 %

Chromium

14 - 19 %

Copper

0.5 %

Iron

19 - 25 %

Manganese

2 %

Nickel

59 %

Phosphorus

0.02 %

Silicon

0.5 - 2 %

Sulfur

0.015 %


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