CuMn3 Manganin Copper Plate 1.0mm×300mm×1000mm High Conductivity Alloy Plate
Price:
Negotiable
MOQ:
5kg
Delivery Time:
5-21 days
Brand:
Huona
Product Description
CuMn3 Manganin Copper Plate (1.0×300×1000mm)
CuMn3 manganin copper plate from Huona New Material is a high-precision copper-manganese alloy plate featuring a bright, smooth surface finish. Manufactured through vacuum smelting, hot/cold rolling, precision annealing, and surface polishing processes, this alloy delivers ultra-low temperature coefficient of resistance, stable resistivity, and excellent formability for precision electrical applications.
Material Specifications & Standards
Alloy Grade: CuMn3 (equivalent to UNS C18700, DIN 2.0842, GB/T 2040-2017)
Dimensions: 1.0mm × 300mm × 1000mm (Thickness tolerance: ±0.02mm, Width tolerance: ±0.3mm, Length tolerance: ±2mm)
Compliant Standards: ASTM B124, EN 13602, GB/T 2040-2017, RoHS 2.0
Manufacturer: Huona New Material (ISO 9001 & ISO 14001 Certified)
Dimensions: 1.0mm × 300mm × 1000mm (Thickness tolerance: ±0.02mm, Width tolerance: ±0.3mm, Length tolerance: ±2mm)
Compliant Standards: ASTM B124, EN 13602, GB/T 2040-2017, RoHS 2.0
Manufacturer: Huona New Material (ISO 9001 & ISO 14001 Certified)
Chemical Composition
Manganese (Mn): 2.5-3.5% | Copper (Cu): Balance | Iron (Fe): ≤0.3% | Lead (Pb): ≤0.05% | Carbon (C): ≤0.1%
Key Performance Advantages
Ultra-Stable Electrical Performance
- Low Temperature Coefficient of Resistance: TCR = ±5×10⁻⁶/℃ (0-100℃)
- Stable Resistivity: 0.18 μΩ*m at 20℃ with resistance drift ≤0.005%/℃
- Bright Surface Finish: Ra ≤0.2μm reduces contact resistance and enhances solderability
Excellent Mechanical & Processing Properties
- High Ductility: Elongation ≥35% (annealed condition)
- Superior Formability: Bending radius ≤1× thickness (180° bend without cracking)
- Precision Dimensional Control: Flatness ≤0.1mm/m, thickness uniformity ±0.02mm
Corrosion & Environmental Resistance
- Atmospheric & Mild Corrosion Resistance: Passes 500-hour ASTM B117 salt spray test
- Wide Operating Temperature Range: -40℃ to 120℃ for stable performance
Technical Specifications
| Attribute | Value (Typical) |
|---|---|
| Alloy Grade | CuMn3 (annealed temper, M) |
| Dimensions | 1.0×300×1000mm (customizable) |
| Resistivity (20℃) | 0.18 μΩ*m |
| TCR (0-100℃) | ±5×10⁻⁶/℃ |
| Tensile Strength | ≥280 MPa (annealed) |
| Elongation | ≥35% |
| Hardness (HB) | 60-80 |
| Density | 8.90 g/cm³ |
| Surface Finish | Bright polished (Ra ≤0.2μm) |
| Operating Temperature | -40℃ to 120℃ |
Product Specifications
| Item | Specification |
|---|---|
| Supply Form | Single plate / stack (10-50 plates per stack) |
| Surface Treatment | Bright polished, pickled, or electro-tinned (optional) |
| Processability | Stamping, etching, laser cutting, CNC machining, spot welding |
| Packaging | PE film + foam interlayer + wooden crate (anti-scratch & deformation) |
| Customization | Thickness (0.5-20mm); width (100-1000mm); length (500-3000mm); hardness adjustment |
Typical Applications
Precision Instrumentation
Precision resistors, current shunts, Wheatstone bridges for multimeters & power analyzers
Precision resistors, current shunts, Wheatstone bridges for multimeters & power analyzers
Electronic Components
Strain gauge blanks, resistance grids for frequency converters, temperature compensation circuits
Strain gauge blanks, resistance grids for frequency converters, temperature compensation circuits
Industrial Control
Signal conditioning modules, PLC precision resistance elements
Signal conditioning modules, PLC precision resistance elements
Medical & Automotive
Portable diagnostic equipment resistors, automotive sensor shunts
Portable diagnostic equipment resistors, automotive sensor shunts
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Huona (Shanghai) New Material Co., Ltd.
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Roy