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Alloys Resistant AlloysIron - Chromium - Aluminium

1. Chemical composition Ni 0 %, Cr 20/23 %, Al: 4 / 5,5, Fe Others %
2. Physical properties
- Resistivity (mm/m) :1.40
- Temperature coefficient (K x 10 - 6 / �C) : 60 from 20 to 1000 C
- Thermal conductivity at 120 C (Wm\-1 C -1) : 16
- Coefficient of linear expansion (coeff. 10- 6/ C) :15 from 20 to 1000 C
- Density (g/cm3 ): 7.15
- Creeping point in - at 800 C : 6 - at 1 000 C :1
- Melting point ( C) :1500
- Maximal operating temperature ( C): 1280
Standard mechanical properties
- Tensile Strength (daN/mm ):75.0
- Yield Strength (daN/mm ) : 550
- Elongation (A% on 100 mm) :18
- Hardness (HV): 2303.

Typical Applications
It is possible with this alloy to reach very high use temperature.
It is particularly useful for heating elements of industrial furnaces where a high head rate is necessary.
Avery long life time of the elements operating at high temperatures up to 1280 C is guaranteed when using Resistohm 140