Brand Name: | SPARK |
---|---|
Size: | Wire diameter 0.8mm |
Type: | Cr20Ni80 |
Material: | nickel chromium alloy |
Color: | silvery |
Quick Details
Specifications
Nichrome Alloy Wire Introduction
Cr15Ni60 is An ideal material, it has good ductility,workability and weldability under high temperature and seismic strength.
Nickel-chromium alloy with high and stable resistance, corrosion resistance, surface oxidation resistance, eXcellent coil-forming ability.
Property:
- Not becoming brittle after long-term use and cooling down;
- Resistance to oxidation: most metals oxidize quickly and become brittle and break when heated in air. however, when heated to red-hot temperatures, nichrome wire, develops an outer layer of chromium oxide, which is thermodynamically stable in air, is mostly impervious to oxygen, and protects the heating element from further oxidation.
- Good Ductility: remaining ductile, even after long-term usage;
- Excellent weldability and etc.
Grades:
Alloy Nomenclature Performance | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Main Chemical composition | Ni | Rest | Rest | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
Fe | ≤1.0 | ≤1.0 | Rest | Rest | Rest | |
Max continuous service temp(C) | 1200 | 1250 | 1150 | 1100 | 1100 | |
Resistivity at 20C (μΩm) | 1.09 | 1.18 | 1.12 | 1 | 1.04 | |
Density(g/cm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
Thermal conductivity (KJ/mhC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Coefficient of lines expansion(α10-6/C) | 18 | 17 | 17 | 19 | 19 | |
Melting point approx.( C) | 1400 | 1380 | 1390 | 1390 | 1390 | |
Elongation at rupture(%) | >20 | >20 | >20 | >20 | >20 | |
Micrographic structure | Austenite | Austenite | Austenite | Austenite | Austenite | |
Magnetic properties | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic | Weak magnetic |
- Electric heaters
- Night store heaters
- Composite curing
- Cartridge heaters
- Electric furnaces
- Wind turbines
- Freeze protection
- Heated hoses