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Nikrothal 35/19 Cb (Construction materials)

Datasheet updated 2012-05-21 15:49:27 (supersedes all previous editions)

Nikrothal 35/19 Cb is an austenitic nickel-chromium alloy (NiCr alloy) with addition of niobium. It is characterized by high mechanical strength and suitable for furnace temperatures up to 1100°C (2012°F).

Typical applications for Nikrothal 35/19 Cb are as wire in meshbelts.

Chemical composition

C % Si % Mn % Cr % Ni % Nb % Fe %
Nominal composition 1.0 Bal.
Min - 1.0 - 18.0 34.0 - -
Max 0.15 3.0 1.0 21.0 37.0 - -

Mechanical properties

Wire size Yield strength Tensile strength Elongation Hardness
Ø mm Rp0.2 Rm A
mm MPa MPa % Hv
1.0 450 750 30 180

Mechanical properties at elevated temperature
Temperature °C 900
MPa 120

Ultimate tensile strength - deformation rate 6.2 x 10-2/min


Creep strength - 1% elongation in 1000 h
Temperature °C 800 1000
MPa 20 4

Physical properties

Density g/cm3 7.90
Electrical resistivity at 20°C Ω mm2/m 1.04

Temperature factor of resistivity
Temperature°C 100 200 300 400 500 600 700 800 900 1000 1100
Ct 1.03 1.06 1.10 1.12 1.15 1.17 1.19 1.21 1.22 1.23 1.24

Coefficient of thermal expansion
Temperature °C Thermal Expansion x 10-6/K
20 - 250 16
20 - 500 17
20 - 750 18
20 - 1000 19

Thermal conductivity
Temperature °C 20 100 200 300 400 500 600 700 800 900 1000 1100
W m-1 K-1 13 14 15 16 18 19 21 22 24 25 26 28

Specific heat capacity
Temperature °C 20 100 200 300 400 500 600 700 800 900 1000 1100
kJ kg-1 K-1 0.50 0.50 0.50 0.51 0.54 0.57 0.60 0.62 0.64 0.67 0.70 0.73

Melting point °C 1390
Max continuous operating temperature in air °C 1100
Magnetic properties The material is non-magnetic
Emissivity - fully oxidized material 0.88

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Kanthal materials.

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