Fe-Cr-Al Resistance Heating Wire
FeCrAl Resistance Heating Wire
HOT CORE industy makes and offer the high quality of FeCrAl resistance heating wires especially for the making of heating elements. And the most popular material is OCr23Al5 and OCr25Al5.
FeCrAl Electric Resistance Heating alloy wires made by HOT CORE industry with high electrical resistivity, temperature coefficient of resistance is small, high operating temperature. Superior antioxidant, high surface load, high corrosion resistance under high temperature, long service life, competitive price range, it is widely used in Various heating elements, such as household appliance heating elements, and other industrial appliance heating elements.
Technical Parameters of FeCrAl Electric Resistance Heating alloy wires:
| Type | OCr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Chemical composition | 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 | |
| Maximal Temperature (°C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity 20°C (10-6ohm*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*°C) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| Extend strength (a*10-6/°C) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Melting point ( °C) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile strength(N/mm2) | 588-735 | 630-780 | 637-780 | 630-780 | 637-784 | 650-800 | 680-830 | |
| Extension rate% | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Section shrink rate (%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Repeatedly bending frequency (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Specific heat J/g. | 0.49 | 0.494 | 0.52 | 0.46 | 0.49 | 0.494 | 0.494 | |
| Linear expansion coefficient a×10-6/201000 | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| hardness (H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Rapid life h/ | ≥80/1250 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1350 | ≥80/1350 | ||
| Microstructure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetism | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
Order Guide:
1- Wire material
2- Wire Diameter
3- Order quantity
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