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High Stability 6J11 New Constantan Alloy Strip Suitable For Manufacturing Precision Instrument

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High Stability 6J11 New Constantan Alloy Strip Suitable For Manufacturing Precision Instrument

Brand Name : Huona

Model Number : 6J11

Certification : ISO9001

Place of Origin : Shanghai

MOQ : 5kg

Price : Negotiable

Payment Terms : T/T,L/C,Western Union,

Supply Ability : 500 tons per month

Delivery Time : 5-21 days

Packaging Details : Carton/Wooden Case

Product Name : 6J11 New Constantan Alloy Strip

Chemical Composition (wt%) : Cu: 55.0-57.0%; Ni: 41.0-43.0%; Mn: 1.0-2.0%; Fe: ≤0.5%; Si: ≤0.1%

Thickness : 0.05-2.0mm (tolerance: ±0.002mm for ≤0.2mm)

Width : 10-300mm (tolerance: ±0.1mm for ≤100mm)

Resistivity (20℃) : 0.49μΩ·m (tolerance: ±0.02μΩ·m)

Applicable Temperature Range : 0-120℃ (continuous); Short-term: up to 150℃ (≤1 hour)

Melting Point : 965℃

Density (25℃) : 8.5g/cm³

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6J11 New Constantan Alloy Strip
Product Overview

6J11 new constantan alloy strip is a high-performance precision resistance alloy product independently developed by Huona New Material. This copper-nickel-manganese (Cu-Ni-Mn) based alloy is optimized for medium-temperature precision applications through advanced vacuum smelting, multi-pass precision cold-rolling, and controlled atmosphere annealing processes.

Key characteristics include:

  • Stable electrical and mechanical properties within 0-120℃ operating range
  • Density of 8.5g/cm³ and resistivity of 0.49μΩ*m
  • Low resistance temperature coefficient (TCR)
  • Excellent corrosion resistance and superior processing performance
  • Ideal for precision resistors, current shunts, and strain gauges in consumer electronics, industrial control, and automotive systems
Standard Designations & Material Foundation
  • Alloy Grade: 6J11 (Chinese standard new constantan alloy grade)
  • International Equivalents: Comparable to DIN 17471 CuNi44Mn1.5 and ASTM B193 modified constantan
  • Core Parameters: 0-120℃ operating range; density 8.5g/cm³; resistivity 0.49μΩ*m (20℃)
  • Compliant Standards: GB/T 1234-2019, IEC 60404-8-2, and RoHS 2.0
  • Manufacturer: Huona New Material (ISO 9001 and ISO 14001 certified)
Key Advantages
1. Stable Electrical Performance in Medium-Temperature Range
  • Resistivity stably maintained at 0.49μΩ*m (20℃)
  • TCR as low as ±15 ppm/℃ (0-120℃ range)
  • Resistance drift <0.008% after 1000 hours at 120℃
2. Balanced Mechanical & Processing Performance
  • Density of 8.5g/cm³ (12% lower than nickel-chromium alloys)
  • Tensile strength 480-550 MPa (annealed state)
  • Elongation ≥25% with 180° bending capability
3. Reliable Corrosion & Environmental Adaptability
  • Passes 1000-hour ASTM B117 salt spray testing
  • Low thermoelectric potential (≤2μV/℃ vs. copper)
  • Resists atmospheric corrosion, freshwater, and mild chemical environments
Technical Specifications
Attribute Value (Typical) Application Significance
Chemical Composition (wt%) Cu: 55.0-57.0%; Ni: 41.0-43.0%; Mn: 1.0-2.0% Mn content optimized for TCR stability
Thickness 0.05-2.0mm (±0.002mm for ≤0.2mm) 0.05-0.1mm for micro-electronics
Width 10-300mm (±0.1mm for ≤100mm) 10-50mm for small components
Resistivity (20℃) 0.49μΩ*m (±0.02μΩ*m) Balanced for 1-10A current shunts
Temperature Coefficient ±15 ppm/℃ (0-120℃) Ensures resistance stability
Product Specifications
Item Specification Processing/Application Advantage
Surface Finish Bright annealed or matte finish Bright for precision etching; matte for anti-glare
Flatness ≤0.05mm/m Ensures uniform thickness
Supply Form Rolls (50m-300m) or cut-to-length (≥50mm) Rolls for mass production
Weldability Suitable for spot and TIG welding Welded joints variation ≤0.1%
Typical Applications
  • Consumer Electronics: Micro-current shunts in fast-charging adapters (0.08-0.1mm thickness)
  • Automotive Systems: Current-sensing resistors for in-car USB charging modules
  • Industrial Control: Resistance elements for pressure transmitters and flow meters
  • Wearable Devices: Strain gauge grids in smart watch heart rate sensors
Quality Assurance

Huona New Material implements strict quality control including:

  • XRF chemical composition analysis
  • High-precision four-point probe resistivity testing
  • Universal testing machine for mechanical properties
  • Detailed material test reports (MTR) available

Product Tags:

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Wholesale High Stability 6J11 New Constantan Alloy Strip Suitable For Manufacturing Precision Instrument from china suppliers

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