NRX 600

Construction materialsDatasheet

Datasheet updated 2019-09-02 08:21 (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^®.

NRX 600 is an austenitic nickel-chromium alloy (NiCr alloy) for furnace temperatures up to 1150°C (2100°F).

Typical applications for NRX 600 are as conveyor belts in corrosive atmospheres for heat treatment of metals and ceramics.

Chemical composition

	Cr %	Ni %	Fe %
Nominal composition	15	77	7

Mechanical composition

Wire size	Yield strength	Tensile strength	Elongation
Ø	R_p0.2	R_m	A
mm (in)	MPa (ksi)	MPa (ksi)	%
1.0 (0.04)	310 (45)	670 (97)	30

Physical properties

Density g/cm³ (lb/in³)	8.55 (0.309)
Electrical resistivity at 20°C Ω mm²/m (Ω circ. mil/ft)	1.00 (602)

Coefficient of thermal expansion
Temperature °C (°F)	Thermal Expansion x 10^-6/K (10-⁶ /°F)
20 - 1000 (68-1832)	16.7 (9.3)

Thermal conductivity
Temperature °C (°F)	100 (212)
W m^-1 K^-1(Btu h^-1ft^-1°F^-1)	11.9 (6.9)

Specific heat capacity
Temperature °C (°F)	20 (68)
kJ kg^-1 K^-1 (Btu lb^-1 °F^-1)	0.46 (0.11)

Melting point °C (°F)	1400 (2552)
Max continuous operating temperature in air °C (°F)	1150 (2102)