Cr80Ni20 Nichrome Tube - 1.09 μΩ·m Resistivity Nickel Alloy for 1200°C Heating Elements
Cr80Ni20 (Ni80Cr20) is a premium nickel-chromium alloy featuring high electrical resistivity, excellent oxidation resistance, and superior form stability. This material maintains reliable performance at temperatures up to 1200°C and offers extended service life compared to iron-chromium-aluminum alternatives.
- Electric heating elements for home appliances and industrial furnaces
- Resistors including wirewound and metal film types
- Flat irons, ironing machines, and water heaters
- Plastic moulding dies and soldering irons
- Metal sheathed tubular elements and cartridge heating elements
| Element | Content (%) |
|---|---|
| C (Carbon) | Max 0.03 |
| P (Phosphorus) | Max 0.02 |
| S (Sulfur) | Max 0.015 |
| Mn (Manganese) | Max 0.60 |
| Si (Silicon) | 0.75-1.60 |
| Cr (Chromium) | 20.0-23.0 |
| Ni (Nickel) | Balance |
| Al (Aluminum) | Max 0.50 |
| Fe (Iron) | Max 1.0 |
| Property | Value |
|---|---|
| Yield Strength | 420 MPa |
| Tensile Strength | 810 MPa |
| Elongation | 30% |
| Density | 8.4 g/cm³ |
| Electrical Resistivity at 20°C | 1.09 μΩ·m |
| Thermal Conductivity at 20°C | 15 W/m·K |
| Coefficient of Thermal Expansion (20-1000°C) | 18 × 10⁻⁶/°C |
| Specific Heat Capacity at 20°C | 0.46 J/g·K |
| Melting Point | 1400°C |
| Maximum Continuous Operating Temperature in Air | 1200°C |
| Magnetic Properties | Non-magnetic |
| Temperature (°C) | Resistivity Factor |
|---|---|
| 20 | 1 |
| 100 | 1.006 |
| 200 | 1.012 |
| 300 | 1.018 |
| 400 | 1.025 |
| 600 | 1.018 |
| 700 | 1.01 |
| 800 | 1.008 |
| 900 | 1.01 |
| 1000 | 1.014 |
| 1100 | 1.021 |
For stocked sizes, any quantity is available. For custom production, minimum orders are 2-3kg for spool wire and 25kg for coil wire.
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