0.5mm to 40.0mm Nichrome Alloy Micro Capillary Tubes Ni80Cr20 with 1200°C Service Temperature and 1.09 μΩ·m Resistivity
High-performance nickel-chromium alloy tubes available in diameters from 0.5mm to 40.0mm. These precision micro capillary tubes are manufactured in various alloy compositions including Ni90Cr10, Ni80Cr20, Ni60Cr15, and Ni35Cr20 to meet diverse industrial requirements.
Common designations: Ni80Cr20, Nikrothal8, MWS-650, NiCrA, TophetA, HAI-NiCr80, Chromel A, Alloy A, Alloy 650, N8, Resistohm 80, Stablohm 650, Nichorme V, Nikrothal 80.
- High electrical resistivity for efficient heating applications
- Excellent oxidation resistance up to 1200°C continuous service temperature
- Superior form stability and mechanical strength
- Extended service life compared to iron-chromium-aluminum alloys
- Nonmagnetic austenitic structure
- Minimum 20% elongation at rupture for excellent formability
| Properties/Grade | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
|---|---|---|---|---|---|
| Main Chemical Composition Ni | Rest | Rest | 55.0-61.0 | 34.0-37.0 | |
| Cr Content | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | |
| Fe Content | ≤1.0 | ≤1.0 | Rest | Rest | |
| Max. Continuous Service Temp. | 1200°C | 1250°C | 1150°C | 1100°C | |
| Resistivity at 20°C (μΩ·m) | 1.09 | 1.18 | 1.12 | 1.04 | |
| Density (g/cm³) | 8.40 | 8.10 | 8.20 | 7.90 | |
| Thermal Conductivity (KJ/m·h·°C) | 60.3 | 45.2 | 45.2 | 43.8 | |
| Coefficient of Linear Expansion (α×10⁻⁶/°C) | 18.0 | 17.0 | 17.0 | 19.0 | |
| Melting Point (°C) | 1400 | 1380 | 1390 | 1390 |
- Electric heating elements for home appliances and industrial furnaces
- Precision resistors including wirewound and metal film types
- Thermal processing equipment: flat irons, ironing machines, water heaters
- Industrial tooling: plastic moulding dies, soldering irons
- Metal sheathed tubular elements and cartridge heating elements
Packaging: Standard cardboard boxes, pallets, and wooden boxes. Thermal spray wires are supplied on spools packed in cartons and palletized. Custom packaging available upon request.
Shipping: Comprehensive logistics support including express delivery, sea freight, air transportation, and railway transport tailored to customer requirements.
Stock sizes: any quantity available. Custom production: 2-3kg for spool wire, 25kg for coil wire.
Western Union and wire transfer accepted for sample orders.
Express shipping available worldwide with cost included in sample payment.
LC and T/T payment terms available, negotiable based on order volume and delivery requirements.
Available for stock sizes with customer responsible for international shipping costs.
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