ASTM B88 T2 Seamless Red Copper Tube For Air Conditioning Water Systems
ASTM T2 Seamless Red Copper Tube is a high-purity copper pipe manufactured from Cu-DHP (phosphorus-deoxidized copper) with a copper content of at least 99.90%. Designed for refrigeration, air conditioning, plumbing, water supply, and heat exchange systems, it offers excellent thermal conductivity, corrosion resistance, and mechanical strength.
Manufactured according to ASTM B88, ASTM B837, ASTM B306, ASTM B883, and ASTM B819 standards, the tube is available in straight lengths and coils with outer diameters from 6.35 mm to 406 mm and wall thicknesses from 0.5 mm to 80 mm. It is suitable for both residential and industrial applications requiring reliable heat transfer and long service life.
Modern HVAC, refrigeration, and water distribution systems require piping materials that can withstand high pressure, temperature fluctuations, and corrosive environments while maintaining excellent thermal efficiency.
- Traditional steel pipes may rust and corrode over time
- Reduced heat transfer efficiency with traditional materials
- Frequent maintenance requirements
- Increased installation costs due to heavier weight
- Refrigeration systems demand internally clean tubing to prevent compressor contamination and system failure
T2 Seamless Copper Tube provides an ideal solution by combining:
- High thermal conductivity for efficient heat transfer
- Excellent corrosion resistance for long service life
- Seamless construction for higher pressure resistance
- Superior ductility for easy bending and installation
- Internal cleanliness meeting EN 12735-1 requirements for refrigeration applications
- Compatibility with water, refrigerants, lubricants, and HVAC systems
Its seamless manufacturing process minimizes leakage risks and improves operational reliability.
| Parameter | Specification |
|---|---|
| Material | T2 / Cu-DHP |
| Copper Purity | ≥99.90% |
| Phosphorus Content | 0.015-0.040% |
| Standards | ASTM B88, ASTM B837, ASTM B306, ASTM B883, ASTM B819 |
| Outer Diameter | 6.35-406 mm |
| Wall Thickness | 0.5-80 mm |
| Length | 1-6 m or customized |
| Form | Straight tube or coil |
| Surface | Bright red copper |
| Temper | R220, R250, R290 |
| Package | Standard export seaworthy packing |
| Delivery Time | 5-10 days |
| Temper | Tensile Strength | Elongation | Hardness |
|---|---|---|---|
| R220 | ≥220 MPa | ≥40% | 40-70 HV |
| R250 | ≥250 MPa | ≥30% | 75-100 HV |
| R290 | ≥290 MPa | ≥3% | ≥100 HV |
| Temper | Cleanliness |
|---|---|
| R220 | ≤38 mg/m² |
| R250 | ≤38 mg/m² |
| R290 | ≤38 mg/m² |
Compliant with EN 12735-1.
- Air Conditioning: Split air conditioners, Central HVAC systems, VRF systems
- Refrigeration: Refrigerators, Cold storage equipment, Freezers, Ice-making systems
- Water Supply: Residential plumbing, Commercial water distribution, Hot and cold water piping
- Heat Exchange: Heat exchangers, Condensers, Evaporators, Oil coolers
- Industrial Equipment: Medical gas pipelines, Solar water heaters, Industrial cooling systems, Marine heat transfer systems
- Determine the Application: Water supply, HVAC, Refrigeration, Heat exchanger
- Select the Proper Temper:
- R220: Best for bending and installation
- R250: Balanced strength and flexibility
- R290: Suitable for high-pressure applications
- Choose Size: Consider outer diameter, wall thickness, working pressure, and flow requirements
- Verify Standards: Ensure compliance with ASTM B88, ASTM B819, EN 12735-1
- Consider Delivery Form: Straight lengths for fixed installations, Coils for easier transportation and installation
T2 is a high-purity copper grade commonly equivalent to phosphorus-deoxidized copper (Cu-DHP) for piping applications, offering excellent weldability and corrosion resistance.
Yes. They are specifically designed for HVAC and refrigeration systems and meet internal cleanliness requirements for refrigerant transport.
R220: Soft and easy to bend
R250: Medium hardness
R290: Hard temper for high-pressure systems
Yes. Outer diameter, wall thickness, length, and packaging can all be customized according to customer requirements.
Seamless copper tubes provide higher pressure resistance, better corrosion resistance, lower leakage risk, longer service life, and improved heat transfer efficiency.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.