0.26x3.0mm CuNi40 Constantan Flat Wire with 0.49 Ω·mm²/m Resistivity and 400°C Temperature Rating
Price:
USD 17.5-26.5 KG
MOQ:
20KG
Delivery Time:
7-12days
Brand:
TANKII
Product Description
Product Overview
Copper-nickel alloy flat wire featuring low electrical resistance, excellent heat resistance, and superior corrosion resistance. This material is easily processed and welded, making it ideal for critical electrical components.
Key Features
- Low electrical resistivity: 0.49 ohm·mm²/m
- Excellent heat resistance up to 400°C
- Superior corrosion resistance properties
- Easy processing and lead welding capabilities
- Available in diameters from 0.03mm to 30mm
Chemical Composition
| Ni | Mn | Fe | Si | Cu | Other | ROHS Compliance |
|---|---|---|---|---|---|---|
| 44% | 1% | - | - | Balance | - | ND (Non-Detectable) |
Mechanical Properties
| Property | Value |
|---|---|
| Max Continuous Service Temperature | 400°C |
| Resistivity at 20°C | 0.49 ±5% ohm·mm²/m |
| Density | 8.9 g/cm³ |
| Melting Point | 1280°C |
| Tensile Strength (Annealed) | 340-535 MPa |
| Tensile Strength (Cold Rolled) | 680-1070 MPa |
| Elongation (Annealed) | ≥25% |
Alloy Specifications
| Alloy | Resistivity (μΩ·m) | Max Temp (°C) | Tensile (MPa) | Melting Point (°C) | Density (g/cm³) | TCR (×10⁻⁶/°C) | EMF vs Cu (μV/°C) |
|---|---|---|---|---|---|---|---|
| NC003 (CuNi1) | 0.03 | 200 | 210 | 1085 | 8.9 | <100 | -8 |
| NC005 (CuNi2) | 0.05 | 200 | 220 | 1090 | 8.9 | <120 | -12 |
| NC010 (CuNi6) | 0.1 | 220 | 250 | 1095 | 8.9 | <60 | -18 |
| NC012 (CuNi8) | 0.12 | 250 | 270 | 1097 | 8.9 | <57 | -22 |
| NC015 (CuNi10) | 0.15 | 250 | 290 | 1100 | 8.9 | <50 | -25 |
| NC020 (CuNi14) | 0.2 | 300 | 310 | 1115 | 8.9 | <30 | -28 |
| NC025 (CuNi19) | 0.25 | 300 | 340 | 1135 | 8.9 | <25 | -32 |
| NC030 (CuNi23) | 0.3 | 300 | 350 | 1150 | 8.9 | <16 | -34 |
| NC035 (CuNi30) | 0.35 | 350 | 400 | 1170 | 8.9 | <10 | -37 |
| NC040 (CuNi34) | 0.4 | 350 | 400 | 1180 | 8.9 | 0 | -39 |
| NC050 (CuNi44) | 0.5 | 400 | 420 | 1200 | 8.9 | <-6 | -43 |
Applications
This copper-based low resistance heating alloy is widely used in low-voltage circuit breakers, thermal overload relays, and other low-voltage electrical products. It serves as a key material for electrical heating cables and critical components in electrical appliances.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai Tankii Alloy Material Co.,Ltd
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Martin Lee