Resistance Strip Nickel Based Alloy MWS-675 Strip for Heating Element
1.>Nickel Chromium Alloy Introduction:
Nickel Chromium alloy has high resistivity, good anti-oxidation properties, high temperature strength, very good form stability and weld ability. It is widely used in electrical heating element material, resistor, industrial furnaces, etc.
2.>Detailed Description:
Grade: NiCr 80/20 is also called Chromel A, Nikrothal 80, N8, Nichrome V, HAI-NiCr 80, Tophet A, Resistohm 80, Cronix 80, Protoloy, Nikrothal 8, Alloy A, MWS-650, Stablohm 650, NCHW1
We also produce other kind of nichrome resistance wire, such as NiCr 70/30,NiCr 60/15,NiCr 60/23,NiCr 37/18, NiCr 35/20, NiCr 35/20, NiCr 25/20,Karma
3.>Chemical Composition and Propertes:
Chemical Composition
| Properties/Grade | 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 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Resistivity at 20oC (μΩ·m) | 1.09 | 1.18 | 1.12 | 1.04 | 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 | nonmagnetic | nonmagnetic | nonmagnetic |
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Alloy nickel strip resistance MWS-675 For Heating Element Nicr8020 Tape Images
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