Model NO.: 0Cr21Al4
Treatment: Hydrogen Annealing
Product Type: Ribbon Wire
Carbon Content: Low Carbon
Surface: Acid Pickling or Bright
0Cr21Al4 is one kind of normal material of Fe-Cr-Al alloy. FeCrAl Alloy
has the characteristic of high resistivity,low temperature resistance coefficient,high operating temperature,good anti-oxidation and anti-corrosion under high temperature.
It is widely used in industrial furnace, household appliances, industry furnace, metallurgy, machinery, aircraft, automotive, military and other industries producing heating elements and resistance elements.
FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc.
Size dimension range:
| Alloy Nomenclature Performance || 0Cr21Al4 |
| Main Chemical composition || Cr || 18.0-21.0 |
| Al || 3.0-4.2 |
| Re || opportune |
| Fe || Rest |
| Max. continuous service temp. of element(°C) || 1100 |
| Resistivity at 20ºC(μΩ·m) || 1.23 |
| Density(g/cm3) || 7.35 |
| Thermal conductivity(KJ/m·h·ºC) || 46.9 |
| Coefficient of lines expansion(α×10-6/ºC) || 13.5 |
| Melting point approx.( ºC) || 1500 |
| Tensile strength(N/mm2) || 600-700 |
| Elongation at rupture(%) || >14 |
| Variation of area(%) || 65-75 |
| Repeat Bending frequency(F/R) || >5 |
| Hardness(H.B.) || 200-260 |
| continuous service time(Hours/ ºC) || ≥80/1250 |
| Micrographic structure || Ferrite |
| Magnetic properties || Magnetic |
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