Wuhan Global Metal Engineering Co., Ltd
Wuhan Global Metal Engineering Co., Ltd The pioneer manufacturer of heaters & sensors
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Introduction:
High temperature heating wires are used for making electric heating elements in home appliances and industrial furnaces. Typical applications are flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Characteristics:
1) Excellent straightness
2) High strength in high temperature
3) Uniform and beautiful surface condition without spots
4) Excellent coil-forming ability
5) Good corrosion resistance
Technical Parameter:
| NAME | Cr20Ni80 | 0Cr25Al5 | Cr20Ni30 | |
|
MAIN CHEMICAL COMPOSITION |
Cr | 20.0-23.0% | 23.0-26.0% | 18.0-21.0% |
| Ni | Balance | - | 30.0-34.0% | |
| Al | - | 4.5-6.5% | - | |
| Re | - | opportune | - | |
| Fe | ≤1.0% | Balance | Balance | |
| Max Temperature (℃) | 1200 | 1250 | 1100 | |
| melting point( ℃) | 1400 | 1500 | 1390 | |
| Density (g/cm3) | 8.4 | 7.1 | 7.9 | |
| Resistivity 20℃ (μΩ·m) | 1.09±0.05 | 1.42±0.07 | 1.04±0.05 | |
| tensile strength(N/mm2) | 850-950 | 637-784 | 850-950 | |
| elongation(%) | ≥20 | ≥12 | ≥20 | |
| bending frequency(F/R) | ≥9 | ≥5 | ≥9 | |
| Working Life (hours) | >20000 | >8000 | >18000 | |
| Thermal Conductivity (KJ/m·h·℃) | 60.3 | 46.1 | 43.8 | |
| Specific Heat Capacity(J/g.℃) | 0.44 | 0.494 | 0.5 | |
| expansion rate(α×10-6/℃) | 18 | 16 | 19 | |
| micrographic structure | Austenite | Ferrite | Austenite | |
| magnetic property | non-magnetic | Magnetic | non-magnetic | |