Nicr80/20 Nickel Chrome Alloy Smooth Bright Surface Round Annealed Bar
General description
Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. It is suitable for use at temperatures up to 1200°C,and hold a superior service life compared to Iron chromium alumium alloys.
Typical applications for Ni80Cr20 are electric heating elements in home appliances,industrial furnaces and resistors(wirewound resistors,metal film resistors), flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Material composition
1 FeCrAl bar includes: OCr13Al4,OCr19Al2,OCr21Al4,OCr20Al5,OCr25Al5,OCr21Al6,OCr21Al6Nb,OCr27Al7Mo2.
2 Nickel-chromium bar includes:Cr25Ni20,Cr20Ni35,Cr15Ni60,Cr20ni80
Main Property of nichrome heating wire
| 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. of element(ºC) | 1200 | 1250 | 1150 | 1100 | 1100 |
| Resistivity at 20ºC (μΩ·m) | 1.09 | 1.18 | 1.12 | 1.0 | 1.04 |
| Density(g/cm3) | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 |
| Thermal conductivity (KJ/m·h·ºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| Coefficient of lines expansion(α×10-6/ºC) | 18.0 | 17.0 | 17.0 | 19.0 | 19.0 |
| Melting point approx.( ºC) | 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 |
Main Advantage and Application
1. Nickel-chromium, nickel-chromium alloy with high and stable resistance, corrosion resistance, surface oxidation resistance is good, a better under high temperature and seismic strength, good ductility, good workability and weldability.
2.Our Products widely apply to chemical industry, metallurgy mechanism, glass industry, ceramic industry, home appliance area and so on.
Size
wires:0.018-10mm
Ribbons:0.05*0.2-2.0*6.0mm
Strips:0.5*5.0-5.0*250mm
Bars:D10-100mm
Service
1.fine after-sale services
2.small order accepted
3.samples available
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Nicr80/20 Nickel Chrome Alloy Smooth Bright Surface Round Annealed Bar Images
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