Introduction
0Cr21Al4 is an iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 900°C (1652°F). The alloy with the characteristics of high resistivity, low temperature coefficient of electric resistance, high operating temperature, good oxidation resistance under high temperature. It can equal to FCHW2..
It is widely used in industrial electric furnace, household electrical appliance and far infrared ray device.
Such as panel heaters, infrared heaters, warming plates, in cartridge heaters, storage heaters, ceramic heaters for cooking plates, kilns elements, radiators, in quartz tube heaters for space heating, toasters, toaster ovens, industrial infrared dryers, coils on molded ceramic fibre for cooking plates with ceramic hobs and so on.
Product Details
Chemical composition:
Grade |
Cr % |
Al% |
Fe% |
| 0Cr21Al4 |
18.0-21.0 |
3.0-4.2 |
Balance |
Physical Properties
Grade |
Resistivity at 20ºC(μΩ·m) |
Hardness(H.B.) |
Density |
Melting point approx.( ºC) |
| 0Cr21Al4 |
1.23 |
200-260 |
7.35 g/cm3 |
1500 |
Mechanical properties
Grade |
Tensile strength (N/mm2) |
Elongation at rupture(%) |
Coefficient of lines expansion(α×10-6/ºC) |
Thermal conductivity (KJ/m·h·ºC) |
| 0Cr21Al4 |
600-700 |
>12 |
13.5 |
46.9 |
Currently available services
1)Shapes: in form of round wire, ribbon(flat wire), strip, or bar;
2)Surfaces: bright, acid white, oxidation;
3)Mill test certificate will be provided after production;
4)Size range: wire 0.018-10mm; ribbons 0.05-0.2*2-6mm; strips 0.05-5*5-250mm;
5)Good packing methods to keep goods no damage during delivery;
6)Customized lable, packing, OEM service.
Audited Supplier 
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