*Similar Grade
GB | JIS | ASTM | SW | DIN | W.Nr | ГОСТ |
0Cr21Al4 | FCHW-2 FCHRW-2 | Ⅲ Alchrom-205 | - | CrAl 20 5 | 1.4767 | - |
*Specification
GB/T 1234-2012, JIS C2520-1999, ASTM B603, DIN 17470/17471-1984
*Product Forms
Wire, Mesh, Conveyor, Rod, Bar, Ribbon, Strip, Tape
*Brief
0Cr21Al4 is an iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 900℃.
*Chemical Composition, %
Alloy | C | P | S | Mn | Si | Cr | Ni | Al | Fe |
0Cr21Al4 | ≤0.10 | ≤0.025 | ≤0.025 | ≤0.7 | ≤1.0 | 18.0-21.0 | ≤0.6 | 3.0-4.2 | Rest |
*Physical Properties
Max working temperature, ℃ | 1100 | Elongation at rupture, % | >12 |
Resistivity, μΩ·m, 20℃ | 1.23 | Variation of area, % | 65-75 |
Density, g/cm3 | 7.35 | Repeat Bending frequency, F/R | >5 |
Thermal conductivity, KJ/m.h℃ | 46.9 | Hardness H.B. | 200-260 |
Coefficient of lines expansion, α×10-6/℃ | 13.5 | continuous service time Hours/ ℃ | ≥80/1250 |
Melting point approx, ℃ | 1500 | Micrographic structure | Ferrite |
Tensile strength, N/mm2 | 600-700 | Magnetic properties | Magnetic |
*Feature
The alloy with the characteristics of high resistivity, low temperature coefficient of electric resistance, high operating temperature, good oxidation resistance under high temperature.
*Application
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.
