Plain Smooth Soft Copper Coils for Air Conditioning and Refrigeration
Plain smooth copper coils feature ultra-clean, mirror-bright inner and outer surfaces, high dimensional precision, and a dense, uniform microstructure. With excellent heat transfer efficiency, superior corrosion resistance, and easy weldability, they are ideal for HVAC, refrigeration, gas systems, medical equipment, construction, and marine applications where reliability and performance are critical.
Plain copper tube standard:
GB/T 17791, ASTM B280, EN 12735&JIS H 3300
Plain copper tube alloy grade:
TU1,TP1,TP2,Qsn0.5--o25,c12200,Cu-DHP,C1220
Plain Smooth Copper Coil – Available Sizes
| Outside Diameter(mm) | Wall Thickness Range (mm) |
|---|---|
| 3.6 | 0.28 – 0.60 |
| 4.76 | 0.28 – 1.20 |
| 5.00 | 0.25 – 1.20 |
| 6.35 | 0.25 – 1.50 |
| 7.00 – 7.94 | 0.26 – 1.50 |
| 9.00 – 9.52 | 0.26 – 1.50 |
| 12.00 – 12.70 | 0.30 – 1.50 |
| 15.88 – 18.00 | 0.38 – 1.80 |
| 19.05 | 0.60 – 2.00 |
| 22.22 | 0.75 – 2.00 |
| 28.58 | 1.20 |
Key Features of Plain Smooth Copper Coils
1. Ultra-Clean & Bright Surface
Mirror-like inner and outer surfaces
Free from defects, oxidation, and contaminants
Improves heat transfer performance and system cleanliness
2. Dense and Uniform Microstructure
Strictly controlled manufacturing process
Enhanced mechanical strength and durability
Excellent fatigue resistance for long-term operation
3. High Dimensional Precision
Tight tolerance control during production
Consistent tube dimensions
Suitable for precision assemblies and equipment
4. High Heat Exchange Efficiency
Smooth internal surface reduces flow resistance
Improves thermal conductivity and heat transfer rate
Ideal for high-efficiency HVAC and refrigeration systems
5. Excellent Weldability
Easy to braze and weld
Ensures strong and reliable pipe connections
Simplifies manufacturing, installation, and repair
6. Superior Corrosion Resistance
Oxygen-free copper options available
Suitable for harsh and humid environments
Long service life with minimal maintenance
7. High Strength Options
Copper alloy grades available for demanding applications
Improved wear resistance and mechanical performance
Typical Applications
Air Conditioning Systems – evaporators and condensers
Refrigeration Equipment – heat exchangers and cooling circuits
Gas Equipment – safe and corrosion-resistant piping
Medical Devices – clean and precision tubing systems
Construction Projects – reliable fluid and HVAC piping
Shipbuilding & Marine Systems – durable heat transfer tubing
