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 materials under the trademark Kanthal®.
Nikrothal® 80 wire is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 1200°C (2190°F). The alloy is characterized by high resistivity, good oxidation resistance and very good form stability. It has good ductility after use and excellent weldability.
Nikrothal® 80 is used for electric heating elements in home appliances and industrial furnaces. Typical applications are flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Due to extremely good adhesion properties of the surface oxide, Nikrothal® 80 offers superior service life compared to competitive nickel-chromium alloys.
C %
Si %
Mn %
Cr %
Ni %
Fe %
Trace elements
Nominal composition
Bal.
Added
Min
-
1.0
-
19.0
-
-
-
Max
0.10
1.7
1.0
21.0
-
2.0*
-
* Fe< 1.0 on request
Wire size
Yield strength
Tensile strength
Elongation
Hardness
Ø
Rp0.2
Rm
A
mm
MPa
MPa
%
Hv
1.0
420
810
30
180
4.0
300
725
30
160
Mechanical properties at elevated temperature
Temperature °C
900
MPa
100
Ultimate tensile strength - deformation rate 6.2 x 10-2/min
Creep strength - 1% elongation in 1000 h
Temperature °C
800
1000
MPa
15
4
Density g/cm3
8.30
Electrical resistivity at 20°C Ω mm2/m
1.09
Temperature factor of resistivity
Temperature °C
100
200
300
400
500
600
700
800
900
1000
1100
1200
Ct
1.01
1.02
1.03
1.04
1.05
1.04
1.04
1.04
1.04
1.05
1.06
1.07
Coefficient of thermal expansion
Temperature °C
Thermal Expansion x 10-6/K
20 - 250
14.1
20 - 500
14.9
20 - 750
16.0
20 - 1000
17.2
Thermal conductivity
Temperature °C
20
100
200
300
400
500
600
700
800
900
1000
1100
W m-1 K-1
15
15
15
15
17
19
21
22
24
26
28
30
Specific heat capacity
Temperature °C
20
100
200
300
400
500
600
700
800
900
1000
1100
kJ kg-1 K-1
0.46
0.46
0.48
0.50
0.52
0.54
0.56
0.60
0.63
0.65
0.67
0.70
Melting point °C
1400
Max continuous operating temperature in air °C
1200
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 materials under the trademark Kanthal®.
