Cuprothal 294 Copper-Nickel Alloy Constantan Foil 0.005mm x 100mm for Strain Gauges with 0.48 ohm·mm²/m Resistivity
Price:
Negotiable
MOQ:
20kg
Delivery Time:
Negotiable
Brand:
TANKII
Product Description
Cuprothal 294 Copper-Nickel Alloy Technical Overview
Product Specifications
Cuprothal 294 Constantan foil, size 0.005mm × 100mm, designed specifically for strain gauge applications in precision instruments.
Material Properties
Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 40 |
| Manganese (Mn) | 1.50% |
| Iron (Fe) | - |
| Silicon (Si) | - |
| Copper (Cu) | Balance |
Mechanical & Electrical Properties
| Property | Value |
|---|---|
| Maximum Continuous Service Temperature | 400°C |
| Resistivity at 20°C | 0.48 ±3% 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% |
| EMF vs Copper (0-100°C) | -43 μV/°C |
| Temperature Coefficient of Resistance (TCR) | -40 to +40 |
| Micrographic Structure | Austenite |
| Magnetic Property | Non-magnetic |
Key Features & Applications
- Low temperature coefficient of resistance (TCR) for stable performance
- Wide operating temperature range up to 500°C
- Excellent mechanical working properties and corrosion resistance
- High resistivity (0.48 ohm·mm²/m) for efficient strain measurement
- Non-magnetic characteristics suitable for sensitive instrumentation
- ROHS compliant with no detectable cadmium, lead, mercury, or chromium
Available Dimensions
- Wire: 0.018-10mm diameter
- Ribbons: 0.05×0.2mm to 2.0×6.0mm
- Strip: 0.005×5.0mm to 5.0×250mm
- Bars: 4-100mm outer diameter
Industry Standard Names
Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan
Manufacturing Capabilities
- Condition: Bright, Annealed, Soft temper options
- Wire packaging: Spool for 0.02mm-1.0mm, coil for larger diameters
- Rod and Bar: 1mm-30mm diameter range
- Strip: Thickness 0.005mm-7mm, Width 1mm-280mm
Frequently Asked Questions
Do you attend exhibitions every year?
Yes, we regularly participate in industry exhibitions.
Is there any discount for nickel wire?
Yes, larger quantity orders receive higher discounts.
What information is needed for a quotation?
Please provide: Name, Standard, Material Grade (Chemical Composition), Size Quantity, and Weight.
Can we visit your company/factory before placing an order?
Yes, visitors are welcome anytime by appointment.
How does your factory handle quality control?
Quality is our priority. We maintain strict quality control measures throughout the entire manufacturing process.
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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