Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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Better oxidation resistance wire thick wire MWS-875 / TK1 1.4mm 5.5mm 6.3mm Used For electric heaters
There are several reasons to choose Fecral resistance wire:
1. High Operating Temperature
Fecral resistance wire can typically operate at higher temperatures compared to other types of resistance wires. For instance, some Fecral alloys can reach up to 1400°C, while common nichrome wires usually have a maximum continuous operating temperature of around 1200°C. This makes Fecral wire suitable for applications where high-temperature heat sources are required, such as in high-temperature industrial furnaces, heat treatment equipment, and some specialized laboratory equipment.
2. Excellent Oxidation Resistance
The aluminum in the Fecral alloy forms a dense and stable alumina (Al₂O₃) film on the wire's surface at high temperatures. This oxide film is highly effective in preventing further oxidation of the wire's interior by oxygen. In contrast, nichrome wires are more prone to oxidation at high temperatures, and as the oxide layer on their surface thickens over time, it can lead to a decrease in performance, including an increase in electrical resistance and a reduction in heating efficiency.
3. High Resistivity and Heating Efficiency
Fecral alloy has a relatively high resistivity. Under the same applied voltage and wire length conditions, it can generate more heat. The resistivity of Fecral wire can be adjusted according to specific needs through alloy composition control. This allows for more efficient conversion of electrical energy into heat energy, enabling better heating performance in applications such as electric heaters, drying equipment, and various heating elements in industrial and household appliances.
Chemical Details of our Fe-Cr-Al alloy materials:
| Chemical Composition and Main Property of Fe-Cr-Al Resistance Alloy | ||||||||
| Grade | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main Chemical Composition (%) | 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 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
| Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max Continuous Service Temperature(oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity 20 ℃ (Ωmm2/m) | 1.25 ±0.08 | 1.42 ±0.06 | 1.42 ±0.07 | 1.35 ±0.07 | 1.23 ±0.07 | 1.45 ±0.07 | 1.53 ±0.07 | |
| Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Thermal Conductivity | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| (KJ/m@h@oC) | ||||||||
| Coefficient of Thermal Expansion(α×10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Approximate Melting Point( oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile Strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Elongation(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Section Variation | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Shrink Rate (%) | ||||||||
| Repeatedly Bend 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 | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Micrographic Structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic Property | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
Real picture of FeCrAl alloy wires:
Package:
4. About us
Shanghai Tankii Alloy Material Co., Ltd. specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Magnin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.
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