C18200 Chromium Copper Wire (CDA 182)
C18200 Chromium Copper Wire, also known as CDA 182, is a high-performance alloy renowned for its exceptional electrical conductivity, thermal resistance, and mechanical strength. This premium-grade copper wire is widely used in electrical applications, welding electrodes, and high-temperature environments where durability and reliability are paramount.
Specification

Standard Dimensions

Diameter RangeToleranceStandard
0.1mm - 10mm±0.01mmASTM B105
10mm - 25mm±0.05mmASTM B105


Chemical Composition

Material Composition

  • Copper (Cu): 98.8-99.1%
  • Chromium (Cr): 0.6-1.2%
  • Other Elements: ≤0.3%
Mechanical behavior

Physical Properties

  • Density: 8.89 g/cm³
  • Electrical Conductivity: 85% IACS (min)
  • Tensile Strength: 380-450 MPa
  • Elongation: 15-25%
  • Hardness: 75-95 HRB
Workshop

Manufacturing Process

Our C18200 Chromium Copper Wire is produced through a sophisticated manufacturing process that ensures consistent quality and performance:

  1. Alloying: Precise blending of high-purity copper with chromium under controlled conditions
  2. Continuous Casting: Formation of uniform billets with optimal microstructure
  3. Hot Extrusion: Initial shaping of the wire at elevated temperatures
  4. Cold Drawing: Precision sizing through multiple drawing passes
  5. Heat Treatment: Solution annealing and precipitation hardening for optimal properties
  6. Surface Treatment: Cleaning and coating for enhanced performance

Key Advantages

Superior Electrical Performance

C18200 Chromium Copper Wire maintains excellent conductivity even under high-temperature conditions, making it ideal for electrical applications where performance stability is critical.

Enhanced Mechanical Properties

The chromium addition significantly improves the wire's strength and wear resistance compared to pure copper, extending service life in demanding applications.

Thermal Stability

With outstanding resistance to softening at elevated temperatures, C18200 wire performs reliably in thermal management systems and high-heat environments.

Corrosion Resistance

The alloy's natural oxide layer provides excellent protection against oxidation and environmental degradation, ensuring long-term performance.

Applications

  • Resistance welding electrodes
  • High-performance electrical conductors
  • Thermal management components
  • Switchgear components
  • High-temperature connectors
  • Industrial heating elements

Quality Assurance

Our C18200 Chromium Copper Wire undergoes rigorous quality control testing, including:

  • Chemical composition verification
  • Mechanical property testing
  • Electrical conductivity measurement
  • Dimensional inspection
  • Surface quality assessment

All production complies with international standards including ASTM, ISO, and DIN specifications, ensuring global compatibility and performance reliability.

Package

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