CS101

CS101 (also known as C101 or CW004A) is a high-purity copper alloy, widely known as high-conductivity copper (HC Copper or Electrolytic Tough Pitch Copper).

Chemical Composition

• Copper (Cu): 99.99% minimum

• Impurities (total): Very low, typically less than 0.01%

Mechanical Properties

• Tensile Strength: 200 – 360 MPa (varies with temper and processing)

• Yield Strength: 50 – 340 MPa

• Elongation: 5 – 50%, depending on temper

• Hardness: Typically 40 – 110 HV (Vickers)

Physical Properties

• Density: 8.92 g/cm³

• Melting Point: 1083 °C

• Modulus of Elasticity: 117 GPa

• Electrical Conductivity: 100% IACS (International Annealed Copper Standard)

• Thermal Conductivity: Around 391 W/m·K

• Thermal Expansion Coefficient: Approx. 16.9 x 10⁻⁶ /K

Fabrication and Applications

• Excellent ductility and formability; easily cold worked

• Used in electrical wiring, conductors, busbars, and electronic connectors

• Excellent corrosion resistance in most atmospheres except those containing ammonia

• Suitable for soldering, brazing, welding, and seamless or welded tube manufacture