Common Names: Chromel D, Nikrothal 40, N4, Chromax, HAI-NiCr 40, Tophet D, Resistohm 40, Cronifer III, 35-20 Ni-Cr, Alloy D, Nikrothal 4, MWS-610, Stablohm 610
Chemical Composition:

C	P	S	Mn	Si	Cr	Ni	Al	Fe
≤
0.08	0.02	0.015	1.0	1.0~3.0	18~21	34~37	－	Bal.

Properties:

Max. continuous service Temp.	1100ºC
Resistivity at 20ºC	1.04±0.05 μΩ·m
Density	7.90 g/cm3
Thermal conductivity	43.8 KJ/m·h·ºC
Coefficient of linear expansion	19.0 α×10-6/ºC
Specific heat	0.500 J/g·ºC
Approx. melting point	1390ºC
Elongation	≥20%
Accelerated life	≥80h/1100ºC
Micrographic structure	austenite
Magnetic properties	Weak magnetic