Nichrome Wire Resistance Wire NiCr90/10 NiCr80/20 NiCr70/30 NiCr6015 Electric Resistance Wire For PTC Heater
Nichrome Wire Resistance Wire NiCr90/10 NiCr80/20 NiCr70/30 NiCr6015 Electric Resistance Wire For PTC Heater
Detailed Description:
Ni60Cr15 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance ,good form stability and good ductility and excellent weldability. It is suitable for use at temperatures up to 1150°C.
Typical applications for Ni60Cr15 are used in metal sheathed tubular elements,for example,hot plates,
grills,toaster ovens and storage heaters.The alloys is also used for suspended coils in air heaters in clothes dryers,fan heaters,hand dryers etc.
Normal composition%
C |
P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.08 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 15.0~18.0 | 55.0~61.0 | Max 0.50 | Bal. | - |
Typical Mechanical properties(1.0mm)
Yield strength |
Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 370 | 730 | 35 |
Typical Physical properties
Density (g/cm3) |
8.2 |
| Electrical resistivity at 20ºC(mm2/m) | 1.12 |
| Conductivity coefficient at 20ºC (WmK) | 13 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC | 17 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.46 |
| Melting point (ºC) | 1390 |
| Max continuous operating temperature in air (ºC) | 1150 |
| Magnetic properties | non-magnetic |
Temperature Factors Of Electrical Resistivity
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC |
| 1 | 1.011 | 1.024 | 1.038 | 1.052 | 1.064 | 1.069 |
| 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1200ºC | 1300ºC |
| 1.073 | 1.078 | 1.088 | 1.095 | 1.109 | - | - |
Chemical Composition and Properites:
| Properties/Grade | NiCr 80/20 | NiCr 70/30 | NiCr 60/15 | NiCr 35/20 | NiCr 30/20 | |
| Main Chemical Composition(%) | Ni | Bal. | Bal. | 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 | Bal. | Bal. | Bal. | |
| Max Working Temperature(ºC) | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Resistivity at 20ºC (μ Ω · m) |
1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
| Density(g/cm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Thermal Conductivity (KJ/m· h· ºC) |
60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Coefficient of Thermal Expansion(α * 10-6/ºC) | 18 | 17 | 17 | 19 | 19 | |
| Melting Point(ºC) | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Elongation(%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | |
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