Common Names: Nikrothal 70, Chromel 70/30, N7, Hytemco, HAI-NiCr 70, Balco, Tophet 30, Resistohm 70, Cronix 70, Stablohm 710
Chemical Composition:

C	P	S	Mn	Si	Cr	Ni	Al	Fe
≤
0.08	0.02	0.015	0.6	0.75~1.6	28~31	Bal.	≤0.5	≤1.0

Properties:

Max. continuous service Temp.	1250ºC
Resistivity at 20ºC	1.18±0.05 μΩ·m
Density	8.10 g/cm3
Thermal conductivity	45.2 KJ/m·h·ºC
Coefficient of linear expansion	17.0 α×10-6/ºC
Specific heat	0.461 J/g·ºC
Approx. melting point	1380ºC
Elongation	≥20%
Accelerated life	≥50h/1250ºC
Micrographic structure	austenite
Magnetic properties	nonmagnetic