Nikrothal® N40BXT

Resistance heating wire and resistance wireDatasheet

Datasheet updated 2021-02-04 13:33 (supersedes all previous editions)

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^® N40BXT is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 1100°C (2010°F). It has good ductility after use and good corrosion resistance, except in sulphur containing and certain controlled atmospheres.

Typical applications for Nikrothal^® N40BXT are electric heating elements, resistors, and load banks.

Mechanical properties

Wire size	Yield strength	Tensile strength	Elongation
Ø	R_p0.2	R_m	A
mm	MPa	MPa	%
1.0	310	725	35

Mechanical properties at elevated temperature
Temperature °C	900
MPa	110

Ultimate tensile strength - deformation rate 6.2 x 10^-2/min^-1

Physical properties

Density g/cm³	7.98
Electrical resistivity at 20°C Ω mm²/m^-1	1.06 (637 Ω cmf)

Temperature factor of resistivity
Temperature°C	100	200	300	400	500	600	700	800	900	1000	1100
C_t	1.04	1.07	1.10	1.12	1.15	1.16	1.18	1.19	1.21	1.22	1.23

Melting point °C	1420
Max continuous operating temperature in air °C	1100
Magnetic properties	The material is non-magnetic
Emissivity - fully oxidized material (ε)	0.88