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CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments

CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments

CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments
CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments
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Brand Name: Huona
Model Number: CuMn3
Certification: ISO9001
Place of Origin: Shanghai
MOQ: 5kg
Price: Negotiable
Payment Terms: L/C,T/T,Western Union,
Supply Ability: 500 tons per month
Delivery Time: 5-21 days
Packaging Details: Carton/Wooden Case
Grade: CuMn3
Thickness Range: 0.1–50mm
Width Range: 10–600mm
Length Range: 1000–6000mm (customizable)
Resistivity (20℃): 0.13 μΩ·m
Temperature Coefficient of Resistance (0–100℃): ±5×10⁻⁶/℃
Tensile Strength: Tensile Strength
Density (25℃): 8.90 g/cm³
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Huona (Shanghai) New Material Co., Ltd.
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CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments

CuMn3 Manganin Copper Plate for High Precision Current Shunts & Measuring Instruments
CuMn3 manganin copper plate from Huona New Material is a high-performance copper-manganese alloy plate composed of copper base metal with 2.5-3.5% manganese and trace stabilizing elements. Manufactured through vacuum smelting, hot rolling, cold rolling, and precision annealing processes, it delivers ultra-low temperature coefficient of resistance, stable resistivity, and excellent corrosion resistance.
Standard Designations & Material Foundation
  • Alloy Grade: CuMn3 (equivalent to UNS C18700, DIN 2.0842, GB/T 2040-2017)
  • Chemical Composition (wt%): Mn: 2.5-3.5%; Cu: balance; Fe ≤0.3%; Pb ≤0.05%; C ≤0.1%
  • Compliant Standards: ASTM B124, EN 13602, GB/T 2040-2017, RoHS 2.0
  • Manufacturer: Huona New Material, certified to ISO 9001 and ISO 14001
Key Performance Advantages
Superior Electrical Stability
Ultra-low temperature coefficient of resistance (±5×10⁻⁶/℃ from 0-100℃) ensures resistance value drift ≤0.005% within working temperature range, making it ideal for high-precision electronic components.
Excellent Mechanical Processability
High ductility with elongation ≥35% and bending radius ≤1× thickness enables complex component shaping through stamping, deep drawing, and etching processes.
Corrosion Resistance & Environmental Adaptability
Forms a dense oxide film that passes 500-hour ASTM B117 salt spray testing and operates stably from -40℃ to 120℃.
Technical Specifications
AttributeValue (Typical)
Alloy GradeCuMn3 (annealed temper, M)
Thickness Range0.1-50mm (tolerance: ±0.005mm for ≤1mm; ±0.01mm for >1mm)
Width Range10-600mm (tolerance: ±0.1mm)
Length Range1000-6000mm (customizable)
Resistivity (20℃)0.13 μΩ*m
Temperature Coefficient of Resistance (0-100℃)±5×10⁻⁶/℃
Tensile Strength≥280 MPa (annealed)
Yield Strength≥100 MPa (annealed)
Elongation≥35%
Hardness (HB)60-80 (annealed)
Density (25℃)8.90 g/cm³
Surface FinishMill finish (Ra ≤1.2μm); optional polished (Ra ≤0.2μm)
Product Specifications
ItemSpecification
Supply FormPlates (1-6m length); cut-to-length (≥100mm)
Surface TreatmentMill finish, pickled, or electroplated (tin/nickel plating)
ProcessabilityCompatible with stamping, etching, laser cutting, and spot welding
PackagingPE film wrapping + foam interlayer + wooden crate
CustomizationSpecial thicknesses (0.05-60mm); customized heat treatment
Typical Applications
  • Precision Instrumentation: Core material for precision resistors, current shunts, and Wheatstone bridge components
  • Electronic Components: Strain gauge blanks and resistance grids for industrial frequency converters
  • Industrial Control Systems: Precision resistance elements for temperature compensation circuits
  • Medical Devices: Resistor components for portable diagnostic equipment
Product Tags:

CuMn3 Manganin copper plate

  

high precision current shunt plate

  

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Quality CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments for sale

CuMn3 Manganin Copper Plate For High Precision for Current Shunts & Measuring Instruments

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