Donghe Metal Product Center Special-shaped copper

Large loose coil

Our company produces large bulk internally threaded copper tubes and air-conditioning smooth tubes, featuring bright surface, compact structure, high-precision dimensions and stable annealing properties. They are easy to produce and package, and are widely used in markets such as air conditioning and refrigeration, pipeline heating and ventilation, mechanical power and rail transportation.

Company phone: 0769-83775310 83775312

Performance advantages of large bulk coils

① High strength and good mechanical properties. Different annealing processes can be customized according to the requirements of different customers to ensure that the copper tube can withstand different pressures and tensions to meet different usage environments. At the same time, good mechanical properties ensure that the copper tube is not easily damaged during processing and use, extending the service life of the product.

②Excellent thermal conductivity: Large bulk copper tubes have excellent thermal conductivity and are particularly suitable for areas that require rapid heat dissipation, such as air conditioning, refrigeration, and HVAC. This effectively improves system heat dissipation efficiency, reduces energy consumption, and improves the overall thermal conductivity and heat dissipation performance of air conditioners, fans, HVAC equipment, etc.

③ Suitable for large-scale production, the production process characteristics of large loose copper tubes perfectly solve the problems of small single coil weight (generally 80-180kg per coil) and cumbersome handling in traditional processes.

Large bulk coil performance parameters

Brand state Tensile strength Rm/MPa Elongation δ5%Specified plastic extension strength RP0.2/MPa Vickers hardness HV
TU0, TU1 Hard (H80) ≥350 ≥250 100~140
TP2 Semi-hard (H55, H58) 270~305 ≥125 70~110
C1220, C12200 Light and soft (O50) 225~250 ≥45 40~90 40~60
CW024A Soft (O60) 220~250 ≥45 35~85 40~60