Copper Nickel Alloy Resistance Wire CuNi23 CuNi44 0.03-8.0mm Diameter 400°C Temperature Rating
Constantan, a premium copper-nickel resistance alloy, offers exceptional electrical properties and durability. This material features high electrical resistance with minimal temperature coefficient variation, ensuring stable performance across temperature ranges up to 600°C. The alloy's corrosion resistance and high tensile strength make it ideal for demanding industrial applications in harsh environments.
We supply comprehensive copper-nickel alloy grades including: CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi44 and corresponding NC003, NC005, NC010, NC012, NC015, NC020, NC025, NC030, NC035, NC040, NC050 designations.
- Wire: Cold drawing available from 0.03mm to 8.0mm diameter
- Rod/Bar: Hot rolled options from 8.0mm to 50.0mm diameter
- Ribbon/Strip: Cold rolled dimensions (0.05mm-0.35mm) × (0.5-6.0)mm
- Strip: Hot rolled sizes (0.5mm-2.5mm) × (5-180.0)mm
- Custom Forms: Specialized furnace spring wire and strip configurations
| Material Grade | Resistivity (200°C μΩ·m) | Max Working Temp (°C) | Tensile Strength (MPa) | Melting Point (°C) | Density (g/cm³) |
|---|---|---|---|---|---|
| NC003 (CuNi1) | 0.03 | 200 | 210 | 1085 | 8.9 |
| NC005 (CuNi2) | 0.05 | 200 | 220 | 1090 | 8.9 |
| NC010 (CuNi6) | 0.1 | 220 | 250 | 1095 | 8.9 |
| NC012 (CuNi8) | 0.12 | 250 | 270 | 1097 | 8.9 |
| NC015 (CuNi10) | 0.15 | 250 | 290 | 1100 | 8.9 |
| NC020 (CuNi14) | 0.2 | 300 | 310 | 1115 | 8.9 |
| NC025 (CuNi19) | 0.25 | 300 | 340 | 1135 | 8.9 |
| NC030 (CuNi23) | 0.3 | 300 | 350 | 1150 | 8.9 |
| NC035 (CuNi30) | 0.35 | 350 | 400 | 1170 | 8.9 |
| NC040 (CuNi34) | 0.4 | 350 | 400 | 1180 | 8.9 |
| NC050 (CuNi44) | 0.5 | 400 | 420 | 1200 | 8.9 |
| Shape | Size Range (mm) |
|---|---|
| Wire | 0.08-7.5 |
| Bar | 8.0-50 |
| Ribbon | (0.05-0.35)×(0.5-6.0) |
| Strip | (0.5-2.5)×(5-180) |
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