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Huona CuNi44/NC050/6J40 Strip Superior Corrosion Resistance
Huona CuNi44/NC050/6J40 Strip Superior Corrosion Resistance
Specifications
Brand Name :
Huona
Model Number :
CuNi44
Certification :
ISO 9001
Place of Origin :
Shanghai
MOQ :
5kg
Price :
Negotiable
Payment Terms :
L/C,T/T,Western Union,MoneyGram
Supply Ability :
500 tons per month
Delivery Time :
5-21 days
Packaging Details :
Carton/Wooden Case
Product Name :
CuNi44 Strip
Chemical Composition (wt%) :
Cu: 55.0-57.0%; Ni: 43.0-45.0%; Fe: ≤0.5%; Mn: ≤1.0%; Si: ≤0.1%; C: ≤0.05%
Thickness Range :
0.01mm - 2.0mm
Width Range :
5mm - 600mm
Temper Options :
Soft (annealed), Half-hard, Hard (cold-rolled)
Tensile Strength :
Soft: 450-500 MPa; Half-hard: 500-550 MPa; Hard: 550-600 MPa
Yield Strength :
Soft: 150-200 MPa; Half-hard: 300-350 MPa; Hard: 450-500 MPa
Elongation (25°C) :
Soft: ≥25%; Half-hard: 15-20%; Hard: ≤10%
Description

Product Description

CuNi44/NC050/6J40 Strip

Product Overview

CuNi44 strip, a high-performance copper-nickel alloy strip developed and manufactured by Huona New Material, features a nominal nickel content of 44% with copper as the base metal. Leveraging our advanced cold-rolling and precision annealing technologies, this strip achieves tight dimensional tolerances and consistent material properties across batches. It integrates exceptional electrical resistance stability, superior corrosion resistance, and excellent formability—striking a perfect balance for precision electrical components, sensor elements, and industrial hardware that demand long-term reliability. As a flagship product in Huona’s alloy strip portfolio, it outperforms lower-nickel copper alloys in stability while maintaining cost-effectiveness for large-scale applications.

Standard Designations

  • Alloy Grade: CuNi44 (Copper-Nickel 44)
  • UNS Number: C71500
  • International Standards: Complies with DIN 17664, ASTM B122, and GB/T 2059
  • Form: Rolled flat strip (custom profiles available upon request)
  • Manufacturer: Huona New Material, certified to ISO 9001 and RoHS for quality and environmental compliance

Key Advantages (vs. Similar Alloys)

CuNi44 strip stands out in the copper-nickel alloy family for its targeted performance advantages:


  • Ultra-Stable Electrical Resistance: Resistivity of 49 ± 2 μΩ·cm at 20°C and low temperature coefficient of resistance (TCR: ±40 ppm/°C, -50°C to 150°C)—far superior to CuNi30 (TCR ±50 ppm/°C) and pure copper, ensuring minimal resistance drift in precision measurement equipment.
  • Superior Corrosion Resistance: Withstands atmospheric corrosion, freshwater, and mild chemical environments; passes 1000-hour ASTM B117 salt spray testing with negligible oxidation, outperforming brass and bronze in harsh industrial settings.
  • Excellent Formability: High ductility enables cold rolling to thin gauges (0.01mm) and complex stamping (e.g., resistor grids, sensor clips) without cracking—more workable than high-hardness alloy strips like CuNi50.
  • Balanced Mechanical Properties: Tensile strength of 450-550 MPa (annealed) and elongation ≥25% strike a harmony between structural stability and processability, suitable for both load-bearing and precision-machined components.
  • Cost-Effective Precision: Offers performance comparable to precious metal alloys (e.g., manganin) at a lower cost, making it ideal for mass-produced precision electrical parts.

Technical Specifications

Attribute Value (Typical)
Chemical Composition (wt%) Cu: 55.0-57.0%; Ni: 43.0-45.0%; Fe: ≤0.5%; Mn: ≤1.0%; Si: ≤0.1%; C: ≤0.05%
Thickness Range 0.01mm - 2.0mm (tolerance: ±0.0005mm for ≤0.1mm; ±0.001mm for >0.1mm)
Width Range 5mm - 600mm (tolerance: ±0.05mm for ≤100mm; ±0.1mm for >100mm)
Temper Options Soft (annealed), Half-hard, Hard (cold-rolled)
Tensile Strength Soft: 450-500 MPa; Half-hard: 500-550 MPa; Hard: 550-600 MPa
Yield Strength Soft: 150-200 MPa; Half-hard: 300-350 MPa; Hard: 450-500 MPa
Elongation (25°C) Soft: ≥25%; Half-hard: 15-20%; Hard: ≤10%
Hardness (HV) Soft: 120-140; Half-hard: 160-180; Hard: 200-220
Resistivity (20°C) 49 ± 2 μΩ·cm
Thermal Conductivity (20°C) 22 W/(m·K)
Operating Temperature Range -50°C to 300°C (continuous use)

Product Specifications

Item Specification
Surface Finish Bright annealed (Ra ≤0.2μm), matte (Ra ≤0.8μm), or polished (Ra ≤0.1μm)
Flatness ≤0.05mm/m (for thickness ≤0.5mm); ≤0.1mm/m (for thickness >0.5mm)
Machinability Excellent (compatible with CNC cutting, stamping, bending, and etching)
Weldability Suitable for TIG/MIG welding and soldering (forms corrosion-resistant joints)
Packaging Vacuum-sealed in anti-oxidation bags with desiccants; wooden spools (for rolls) or cartons (for cut sheets)
Customization Slitting to narrow widths (≥5mm), cut-to-length pieces, special tempers, or anti-tarnish coating

Typical Applications

  • Electrical Components: Precision wirewound resistors, current shunts, and potentiometer elements—critical for power meters and calibration equipment.
  • Sensors & Instrumentation: Strain gauge grids, temperature sensor substrates, and pressure transducers (stable resistance ensures measurement accuracy).
  • Industrial Hardware: Corrosion-resistant clips, terminals, and connectors for marine, chemical, and HVAC systems.
  • Medical Devices: Miniature components in diagnostic equipment and wearable sensors (biocompatible and corrosion-resistant).
  • Aerospace & Automotive: Low-power heating elements and electrical contacts in avionics and electric vehicle control systems.


Huona New Material implements strict quality control for CuNi44 strip: each batch undergoes XRF chemical composition analysis, mechanical property testing (tensile, hardness), and dimensional inspection (laser micrometry). Free samples (100mm×100mm) and material test reports (MTR) are available upon request. Our technical team provides tailored support—including temper selection for stamping, etching parameter optimization, and corrosion protection recommendations—to help customers maximize the performance of CuNi44 in their applications.
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Huona CuNi44/NC050/6J40 Strip Superior Corrosion Resistance

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Product Detail
Brand Name :
Huona
Model Number :
CuNi44
Certification :
ISO 9001
Place of Origin :
Shanghai
MOQ :
5kg
Price :
Negotiable
Contact Supplier
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Huona CuNi44/NC050/6J40 Strip Superior Corrosion Resistance

Huona (Shanghai) New Material Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Exporter
Main Products :
Low Expansion Alloy, Soft Magnetic Alloy, Elastic Alloy
Total Annual :
8000000-100000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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