Donghe Metal Product Center 钢 铁 铝 钛 铜 Special-shaped copper

High conductivity arc tellurium copper strip

Tellurium copper strip QTe0.3 (JT118) is a highly conductive arc-erosion-resistant alloy that can meet the low-temperature rise and high-voltage arc resistance tests required by the application end. It is suitable for high-voltage DC relays, connectors, automotive terminal blocks, etc.

Company phone: 0769-83775310 83775312

Performance advantages of high conductivity arc tellurium copper strip

① The high-temperature softening performance is significantly improved compared with red copper TU1, and it can be used as an upgraded iteration material for high-voltage relays in new energy vehicles.

②Meet the low temperature rise, high voltage and arc resistance tests, suitable for high voltage relays, connectors and automotive terminals.

High conductivity arc tellurium copper strip performance parameters

1. Chemical composition

Element Cu+Ag Te Bi Fe Pb Zn Ni Cd
Composition Range (%) ≥99.9 0.20-0.35 <0.001 <0.008 <0.01 <0.005 <0.002 <0.01

2. Physical properties

density 8.9 g/cm³
Electrical conductivity 90 %IACS
Thermal conductivity 354 W/(m·K)
elastic modulus 111 GPa
Specific heat capacity 385 J/(kg∙K)
Coefficient of thermal expansion 17.1 10⁻⁶/K

3. Mechanical properties

state Hardness (HV5) Tensile strength (MPa) Elongation after fracture % (A11.3)
H02 90-115 245-325 ≥10