ASTM B280 Air Conditioning Copper Pipes

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of astm b280 air conditioning copper pipes in China, also supports customized service. Welcome to buy discount astm b280 air conditioning copper pipes for sale here from our factory. Quality products and reasonable price are available.

 

Made from high-grade UNS C12200 (TP2) Phosphorus Deoxidized Copper, these tubes offer superior brazing properties and corrosion resistance. Specifically processed for Air Conditioning and Refrigeration (ACR) field service, every tube is cleaned, degreased, and nitrogen-purged to prevent system contamination.

Whether you need Soft Annealed Coils for residential splits or Hard Drawn Straight Lengths for commercial chillers, our ASTM B280 pipes ensure leak-free performance and longevity.

 

Standard Compliance: Strictly adheres to ASTM B280 specifications (USA Standard).

Superior Cleanliness: Internal residue does not exceed 0.0035 g/sq. ft. Essential for protecting modern compressors and R410a/R32 refrigerants.

Sealed Protection: All tubes are plugged with plastic caps and charged with Nitrogen gas to maintain internal cleanliness during storage and shipping.

Excellent Weldability: High phosphorus content ensures easy and reliable brazing/soldering in field installations.

Formability: Soft annealed coils are easy to bend and flare without cracking.

 

Product Name	ACR Copper Tube / HVAC Copper Pipe
Standard	ASTM B280 (American Society for Testing and Materials)
Material Grade	UNS C12200 (DHP - Deoxidized High Phosphorus)
Equivalent Grades	GB/T TP2, EN Cu-DHP, JIS C1220
Copper Purity	Cu + Ag ≥ 99.90%, P: 0.015% - 0.040%
Temper (Hardness)	O60 (Soft Annealed) for Coils<br>H58 (Hard Drawn) for Straight Lengths
Tensile Strength	≥ 205 MPa (Soft); ≥ 250 MPa (Hard)
Elongation	≥ 40% (Soft)
Cleaning Method	Degreased & Purged with Nitrogen

 

 

High quality air conditioning copper tube

 

1. Pancake Coils (Soft Temper / O60)

Ideal for connections between indoor and outdoor units.

Length: Standard 15m (50ft) or 30m (100ft) per roll.

Common OD Sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1-1/8"

2. Straight Lengths (Hard Temper / H58)

Ideal for main piping lines in commercial refrigeration.

Length: Standard 2.9m, 5.8m, or custom lengths (up to 6m).

Common OD Sizes: 3/8", 1/2", 5/8", 3/4", 7/8", 1-1/8", 1-3/8", 1-5/8", 2-1/8", 2-5/8", 3-1/8", 4-1/8"

 

Residential Air Conditioning (Split systems, Window units).

Commercial HVAC Systems (VRF, VRV, Chillers).

Refrigeration Equipment (Cold rooms, Freezers, Display cabinets).

Heat Pump Systems.

Gas & Medical Gas Piping (Compatible specifications).

 

The main reasons for using copper tubes in air conditioning are as follows:
High pressure resistance and not easy to corrode. Copper coils can withstand high pressure and are not easy to corrode, thus ensuring the normal operation of the air conditioning system and a long service life.
Good thermal conductivity. The thermal conductivity of copper alloy tubes is better than that of aluminum tubes, which can improve the heat exchange efficiency of the air conditioning system and thus enhance the cooling or heating effect.
Welding performance and mechanical strength. Copper tubes have better soldering performance and mechanical strength than aluminum tubes, which makes the air conditioning system more reliable and efficient.
Long service life. Due to their stability and durability, copper hoses have a longer service life than aluminum hoses, making them suitable for long-term use.

 

We understand that a microscopic defect can cause massive system failures. Our QC process includes:

Eddy Current Testing: 100% non-destructive testing to detect flaws and cracks.

Hydrostatic Testing: Ensuring pressure resistance.

Grain Size Analysis: To guarantee uniform ductility.

Carbon Residue Test: Verifying internal cleanliness meets ASTM B280 limits.

 

Q: What is the difference between ASTM B280 and ASTM B88?
A: ASTM B280 is specifically cleaned and capped for Air Conditioning/Refrigeration to prevent system clogging. ASTM B88 is generally for water plumbing and does not have the same strict cleanliness requirements.

 

Q: Can you produce the tubes compatible with R410a high-pressure refrigerant?
A: Yes, our ASTM B280 tubes have the wall thickness and strength required to withstand the high operating pressures of R410a and R32 systems.

 

Q: Do you offer insulated copper pipes?
A: Yes, we can provide PE insulated copper pipe kits (Twin/Single) upon request.

 

Pancake Coils: Individually heat-shrink wrapped→→Cardboard Box→→Wooden Pallet.

Straight Tubes: Bundled with plastic sheets→→Woven bag or Wooden Case protection.

Marking: Each tube is incised with Brand, Size, ASTM B280, and Country of Origin for traceability.

 

 

 

Highly reliable team supplying soft copper tubes

Established in 2008, the company has grown over the years to become a leading manufacturer and supplier of metal products serving a wide range of industries. The company continuously invests in research and development to improve the quality and durability of its products. The company places great emphasis on customer satisfaction and is known for providing high quality products and excellent customer service. Today, the company has a global presence and serves customers in countries all over the world.

 

Customer visits

GNEE Participation in Exhibitions

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