Product Description
FeCrAl high resistance and electric heating alloy
FeCrAl resistance & heating alloy with the characteristics of high resistance, low temperature coefficient of electric resistance, high operating temperature, good corrosion resistance under high temperature, as well as the lower price.
It is widely used in industrial electric furnace, household electrical appliance and far infrared ray device.
| Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main chemical composition (%) | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max. continuous service temp. of element (ºC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity at 20ºC (μΩ·m) |
1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Density (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Thermal conductivity (KJ/m·h·ºC) |
52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| Coefficient of lines expansion (α×10-6/ºC) |
15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Melting point (approx.) (ºC) | 1450 | 1500 | 150 | 1500 | 1500 | 1510 | 1520 | |
| Tensile strength (N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Elongation at rupture (%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Variation of area (%) | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Bending frequency (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Hardness (H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Continuous service time (Hours/ ºC) |
-- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
Round wire: diameter 0.05mm-10.0mm
Flat wire: thickness 0.2mm-1.0mm, width 0.08mm-40.0mm
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