Copper C110 (T2 / ETP Copper)

Copper C110, designated as T2 in Chinese standards and also known as Electrolytic Tough Pitch (ETP) copper, is 99.9% minimum purity copper with exceptional electrical and thermal conductivity. It stands as the industry benchmark for applications where maximum electrical or heat transfer performance is required. C110 combines excellent conductivity with good ductility and workability, making it indispensable for electrical infrastructure, thermal management systems, and high-conductivity engineering components.

Mechanical Properties

• Density: 8.94 g/cm³
• Tensile Strength: 220 MPa
• Yield Strength: 70 MPa
• Elongation at Break: 40%
• Hardness: HRB 10–40
• Modulus of Elasticity: 117 GPa
• Thermal Conductivity: 391 W/m·K
• Electrical Conductivity: 101 % IACS
• Melting Point: 1083 °C
• Coefficient of Thermal Expansion: 16.5 ×10⁻⁶ /°C

Advantages

✅ Unmatched Electrical Conductivity — At 101% IACS (exceeding the IACS standard), it is the go-to material for busbars, conductors, and all current-carrying components

✅ Exceptional Thermal Conductivity — At 391 W/m·K, one of the highest among engineering metals; ideal for heat sinks, thermal spreaders, and cooling systems

-✅ Excellent Workability — Highly ductile with 40% elongation; easily cold-formed, bent, deep-drawn, and spun into complex shapes

✅ Superior Corrosion Resistance — Naturally resistant to atmospheric corrosion and many aqueous environments; develops protective patina over time

✅ Antimicrobial Properties — Inherent copper ions effectively destroy bacteria, viruses, and fungi on contact surfaces

Machining & Manufacturing

Special Notes：

Common Applications