ASTM B280 Cold Drawn Seamless Copper Coil Tubes for Air Conditioning, Refrigeration & Water Systems

Cold drawn seamless copper coil tubes are manufactured from high-purity copper grades including C10200, C12000, C12200, T1, T2, TP2, TU1, and TU2. Designed for excellent thermal conductivity, corrosion resistance, and pressure performance, these tubes are widely used in refrigeration, HVAC, water supply, and industrial fluid transfer systems.

Produced according to international standards such as ASTM B280, ASTM B68, ASTM B75, ASTM B88, EN12735, JIS H3300, and GB standards, our copper coil tubes provide reliable performance under high and low temperature conditions.

Available in various diameters, wall thicknesses, tempers, and surface finishes, our seamless copper tubes can be customized to meet different engineering and industrial requirements.

Many piping systems encounter problems such as:

• Corrosion caused by moisture and chemicals;
• Poor heat transfer efficiency;
• High maintenance costs;
• Leakage from welded joints;
• Material degradation under extreme temperatures;
• Reduced system efficiency due to rough internal surfaces.

Traditional steel and plastic pipes may not provide the required durability and thermal performance for demanding applications.

• HVAC Systems: Air conditioning, refrigeration units, heat pumps
• Plumbing: Drinking water supply, hot and cold water systems, building services
• Industrial Equipment: Heat exchangers, pressure vessels, hydraulic systems, pneumatic pipelines
• Medical Industry: Medical gas distribution, oxygen supply systems
• Marine Engineering: Seawater cooling systems, shipbuilding applications
• Automotive Industry: Brake lines, fuel systems, cooling circuits
• Electrical Industry: Busbars, conductive components

Copper coil tubes efficiently transport liquids and gases while maintaining structural integrity and thermal performance.

Their seamless design eliminates weak welded joints, improving pressure resistance and reducing leakage risks. The smooth internal surface minimizes flow resistance, helping reduce energy consumption and improve system efficiency.

In HVAC and refrigeration systems, copper tubes transfer heat rapidly between refrigerants and surrounding environments, enhancing cooling and heating performance.

Consider:

• Outside diameter;
• Wall thickness;
• Required pressure;
• Installation space.

• Soft for bending applications;
• Half soft for moderate strength;
• Half hard for higher pressure systems.

Select products meeting ASTM, EN, JIS, or GB requirements based on your project.

Choose bright annealed, polished, or mill finish according to installation and aesthetic needs.