Physical properties of heating band materials

Expansion in length per 1 m

Specific resistance at 20°C:

 

 

TOSS Alloy 20 (L.R.)	0.88 Ω * mm² * m-1
NiCr (H.R.)	1.12 Ω * mm² * m-1
Norex®	0.46Ω * mm² * m-1

 

 

Temperature coefficient of resistance (mean value between 20-200°C):

 

TOSS Alloy 20 (L.R.)	+0.8….1.1 * 10-3 1/Deg.
NiCr (H.R.)	+0.05 * 10-3 1/Deg.
Norex®	+3.5 * 10-3 1/Deg.