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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale ASTM B280 Compliant Tubes

ASTM B280 Compliant Tubes

-- Steady & Reliable Manufacturer --

The Gold Standard for HVACR Systems

The ASTM B280 standard is the internationally recognized benchmark for copper tubing used in the Air Conditioning and Refrigeration (ACR) industry. Specifically, it covers seamless copper tube intended for use in the field for the connection, repairs, or alterations of air conditioning or refrigeration units. For a manufacturer, achieving and maintaining ASTM B280 compliance is a statement of technical excellence. This standard dictates not only the chemical composition of the copper (which must be at least 99.9% pure) but also its temper, dimensions, and—most importantly—its internal cleanliness. In an era of high-efficiency compressors and complex refrigerants like R410A, any impurity inside the tube can lead to acid formation or mechanical wear on the compressor. Our ASTM B280 compliant tubes are produced through a meticulous process of drawing and bright annealing, followed by a proprietary cleaning cycle that ensures the internal residue is kept well below the standard’s strict limits.

Beyond cleanliness, ASTM B280 compliance ensures that the tubing has the correct mechanical properties for field service. This includes the ability to be flared, bent, and brazed without cracking or losing structural integrity. Many "budget" tubes on the market may look the same, but they often lack the consistent grain structure that a true ASTM B280 tube provides. Our tubes are tested for expansion, flattening, and eddy current defects. For contractors and engineers, using ASTM B280 compliant copper is a matter of professional liability and system longevity. It ensures that the wall thickness is sufficient to handle the high operating pressures of modern cooling systems and that the pipe will not suffer from premature pitting or corrosion. By specifying our B280-marked tubing, you are ensuring that your installations meet the highest regulatory and safety standards in the United States and global markets.

Technical Parameters and Compliance Data

FeatureASTM B280 Requirement
Alloy NumberC12200 (Copper-Phosphorus)
Chemical ContentCu + Ag ≥ 99.9%; P: 0.015-0.040%
Available TempersAnnealed (O60) and Hard Drawn (H58)
Inner Residue LimitMax 0.0035 g/ft² (0.038 g/m²)
OD Tolerances±0.002" to ±0.005" (Depending on size)
Wall ThicknessConsistent with Standard ACR Sizes
Pressure RatingASME B31.5 Compliant
Tests PerformedExpansion, Grain Size, Cleanness, ECT

Applications in Field Service and Manufacturing

The primary application for ASTM B280 tubing is in the field installation of HVAC systems. This includes the "line sets" that connect an outdoor condensing unit to an indoor evaporator coil in a split air conditioning system. Because the tubing is often bent and flared by hand on the job site, the ASTM B280 soft-annealed coils are the preferred choice for residential and light commercial installers. In addition to field installation, these tubes are used by OEMs for the internal piping of refrigeration cabinets, cold rooms, and ice machines. The standard is also widely cited in industrial specifications for oil and gas cooling lines, where reliability is paramount. Its universal recognition makes it the default choice for export-oriented projects, particularly those involving US-based engineering firms or projects in regions like Southeast Asia and Latin America that follow American building codes.

Why Choose ASTM B280 Certified Copper?

The greatest advantage of our ASTM B280 compliant tubing is the reduction in system failures. Most compressor burnouts are caused by contaminants—moisture, scale, or oils—left in the copper lines during manufacturing or installation. Our B280 tubes are "dehydrated" and capped, meaning they arrive at the job site perfectly clean and dry. This saves the installer time on vacuuming the system and ensures a much longer life for the compressor. Additionally, our tubes feature a uniform grain size, which makes flaring and bending much more predictable. You won't experience "orange peel" textures or cracks during the flaring process, which are common with sub-standard copper. Furthermore, the clear, continuous ink-jet marking on every foot of our pipe makes it easy for building inspectors to verify that the materials used are up to code, facilitating faster project sign-offs and reduced administrative friction for the contractor.

Payment and Shipping for International Orders

We ship our ASTM B280 copper tubing worldwide, specializing in both Pancake Coils and Straight Lengths. For distributors, we offer neutral or private-label packaging to help you build your own brand authority. Payment is generally T/T with a 30% deposit, though we accept L/C for larger government or infrastructure contracts. For high-volume wholesalers in North America and the Middle East, we provide "Master Bundle" shipping, which optimizes container space and reduces per-unit freight costs. Our factory is ISO 9001 certified, and every shipment includes a detailed Mill Test Report (MTR) which confirms the material meets all ASTM B280 requirements, including the specific internal residue measurements. We use reinforced pallets and moisture-proof wrapping to ensure the copper arrives in pristine condition, ready for immediate sale or use.

  • Q: Does your ASTM B280 tubing work with R410A and R32?
  • A: Absolutely. Our B280 tubing is designed and tested to handle the higher operating pressures associated with modern HFC and HFO refrigerants.
  • Q: What is "dehydrated" copper?
  • A: After the bright annealing process, we purge the tubes with dry nitrogen or air to remove any moisture. This is a requirement of ASTM B280 to prevent the formation of ice crystals or acids within the refrigeration system.
  • Q: Can you provide third-party lab verification?
  • A: Yes, upon request, we can provide test reports from independent labs like SGS or Intertek to verify compliance with ASTM standards.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China ASTM B280 Compliant Tubes and ASTM B280 Compliant Tubes Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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