Looking for a Reliable Manufacturer for ASTM B280 Certified Copper Tubes? Your Search Ends Here.
Looking for premium ASTM B280 copper tubes and ACR seamless copper pipes for HVAC, refrigeration, and air conditioning systems? Our ASTM B280 copper tubing meets international standards, including C12200, C10200, and DHP (high-phosphorus deoxidized copper), offering superior thermal conductivity, corrosion resistance, and mechanical performance. Available in a full range of outer diameters (OD) from 1/8″ to 1 3/8″ (6.35 mm – 35 mm) and wall thicknesses per ASTM B280 specifications, these copper tubes are perfect for condensers, evaporators, heat exchangers, refrigerant piping, VRF systems, and cold storage applications. We provide straight and coiled ACR copper tubes, bulk supply, OEM packaging, and global export services, ensuring reliable solutions for residential, commercial, and industrial refrigeration projects. Whether you need a copper tube size chart, ASTM B280 specifications, or high-quality seamless copper pipes for air conditioning and HVAC installations, our products deliver unmatched performance, durability, and worldwide availability.
ASTM B280 Copper Tube Specifications
| Outer Diameter (OD) | Wall Thickness (mm / inch) | Alloy | Form | Standard | Typical Application |
|---|---|---|---|---|---|
| 6 mm / 1/8" | 0.71 mm / 0.028" | C12200 / DHP | Coil / Straight | ASTM B280 | Small Refrigeration Lines |
| 10 mm / 3/8" | 0.81 mm / 0.032" | C12200 / DHP | Coil / Straight | ASTM B280 | Residential HVAC |
| 12 mm / 1/2" | 0.91 mm / 0.036" | C12200 / DHP | Straight | ASTM B280 | Air Conditioning |
| 15 mm / 5/8" | 0.91–1.00 mm / 0.036–0.039" | C12200 / DHP | Straight / Coil | ASTM B280 | HVAC & Refrigeration |
| 18 mm / 3/4" | 1.02 mm / 0.040" | C12200 / DHP | Straight | ASTM B280 | Refrigerant Piping |
| 22 mm / 7/8" | 1.02–1.22 mm / 0.040–0.048" | C12200 / DHP | Straight / Coil | ASTM B280 | Commercial AC / Heat Exchangers |
| 28 mm / 1 1/8" | 1.27 mm / 0.050" | DHP | Straight | ASTM B280 | Industrial Refrigeration |
| 35 mm / 1 3/8" | 1.52 mm / 0.060" | DHP | Straight | ASTM B280 | Large HVAC / Cold Storage |
why choose us
ASTM B280 Copper Tubes | Seamless ACR Copper Pipes for HVAC & Refrigeration
Choose Xi'an Dongmeng Steel with confidence. We are a verified supplier specializing in high-quality ASTM B280 ACR (Air Conditioning and Refrigeration) copper tubes, manufactured to the highest industry standards.
Our commitment to quality is demonstrated by our ISO 9001 certified manufacturing processes and independent verification from SGS Group, ensuring every product meets rigorous performance specifications.
We welcome factory audits and third-party inspections to provide you with complete transparency and peace of mind throughout the procurement process.
Contact us today to discuss your requirements or to schedule a visit to our facilities.
ASTM B280 is the definitive standard for seamless copper tubing specifically designed for air conditioning and refrigeration (ACR) applications. This oxygen-free, nitrogen-charged copper tube is meticulously manufactured to be clean, dry, and capped to prevent contamination, ensuring the integrity and longevity of sensitive HVACR systems. Unlike standard water tube, ACR pipe is delivered ready for field service, offering superior brazability and corrosion resistance for critical refrigerant lines, HVAC line sets, and chiller systems. When failure is not an option, specify ASTM B280 for guaranteed performance and protection against costly compressor burnouts and system contamination.
This specification covers the requirements for seamless UNS C10200, C12000, or C12200 copper alloy tubes used for connection, repairs, or alternations of field air conditioning or refrigeration units. Materials in the form of billets, bars, or tubes should be used to produce a homogeneous uniform wrought structure by either hot or cold working. Each tube should be cold drawn to the finished size and wall thickness. Coiled lengths with soft annealed tempers should be bright annealed after coiling then dehydrated and either capped, plugged, crimped, or otherwise closed at both ends. Straight lengths with hard drawn tempers should be cleaned and either capped, plugged, or otherwise closed at both ends. The grain sizes, tensile properties, and eddy-current and cleanness test results should conform to the values listed herein.
ASTM B280 Copper Tube for Air Conditioning and Refrigeration (ACR) - Dimensions
| Nominal Size (inches) |
Annealed (A) or Drawn Temper (D) | Outside Diameter (inches) mm |
Inside Diameter (inches) mm |
Wall Thickness (inches) mm |
Cross Sectional Area of Bore (square inches) mm |
|---|---|---|---|---|---|
| 1/8 | A | 0.125 | 0.065 | 0.030 | 0.0033 |
| 3/16 | A | 0.187 | 0.128 | 0.030 | 0.0129 |
| 1/4 | A | 0.250 | 0.190 | 0.030 | 0.0284 |
| 5/16 | A | 0.312 | 0.248 | 0.032 | 0.0483 |
| 3/8 | A | 0.375 | 0.311 | 0.032 | 0.076 |
| D | 0.375 | 0.315 | 0.030 | 0.078 | |
| 1/2 | A | 0.500 | 0.436 | 0.032 | 0.149 |
| D | 0.500 | 0.430 | 0.035 | 0.145 | |
| 5/8 | A | 0.625 | 0.555 | 0.035 | 0.242 |
| D | 0.625 | 0.545 | 0.040 | 0.233 | |
| 3/4 | A | 0.750 | 0.680 | 0.035 | 0.363 |
| A | 0.750 | 0.666 | 0.042 | 0.348 | |
| D | 0.750 | 0.666 | 0.042 | 0.348 | |
| 7/8 | A | 0.875 | 0.785 | 0.045 | 0.484 |
| D | 0.875 | 0.785 | 0.045 | 0.484 | |
| 1 1/8 | A | 1.125 | 1.025 | 0.050 | 0.825 |
| D | 1.125 | 1.025 | 0.050 | 0.825 | |
| 1 3/8 | A | 1.375 | 1.265 | 0.055 | 1.26 |
| D | 1.375 | 1.265 | 0.055 | 1.26 |
ASTM B280 Copper Tube for Air Conditioning and Refrigeration (ACR) - Working Pressures
| Nominal Size (inches) |
Max. Working Pressure (psi) (kPa) | ||
|---|---|---|---|
| Annealed Coils | Annealed Straight Lengths | Drawn Straight Lengths | |
| 1/8 | 2613 | ||
| 3/16 | 1645 | ||
| 1/4 | 1195 | ||
| 5/19 | 1017 | ||
| 3/8 | 836 | 777 | 1524 |
| 1/2 | 618 | 664 | 1302 |
| 5/8 | 525 | 615 | 1206 |
| 3/4 | 435 | 538 | 1055 |
| 7/8 | 495 | 496 | 972 |
| 1 1/8 | 420 | 421 | 825 |
| 1 3/8 | 373 | 374 | 733 |
| 1 5/8 | 347 | 348 | 682 |
| 2 1/8 | 309 | 607 | |
| 2 5/8 | 286 | 560 | |
| 3 1/8 | 270 | 529 | |
| 3 5/8 | 258 | 506 | |
| 4 1/8 | 249 | 489 | |
Ratings based on service temperature max. 150oF (66oC).
yield strength S = 5100 psi (35 GPa) for annealed tube
yield strength S = 10000 psi (69GPa) for drawn tube
Copper UNS No. Type of Copper：
| C10200 | Oxygen-free without residual deoxidants |
| C12000 | Phosphorus deoxidized, low residual phosphorus |
| C12200 | Phosphorus deoxidized, high residual phosphorus |
our certificate ASTM B280
Our air conditioning copper tubing is tested by SGS laboratories. Our customers typically request the following:
Laboratory measurements: OD and wall thickness (tested according to ASTM B280)
Test element: Cu, P (tested according to ASTM B280)
Tensile strength, yield strength, and elongation (tested according to ASTM B280)
Our Certificate ASTM B280
| Copper Tube soft temper | 1/2" × 0.035" × 49.21 ft |
| 12.7mm*0.9mm*15m |
Our Certificate ASTM B280
| Copper Tube soft temper | 3/4" × 0.059" × 19.0 ft |
| 19.05 mm × 1.5 mm × 5.8 m |
Our Certificate ASTM B280
| Copper Tube soft temper | 9/16" × 0.047" × 49.2 ft |
| 14mm*1.2mm*15m |
Our Certificate ASTM B280
| Copper Tube soft temper | 3/4" × 0.079" × 19.0 ft |
| 19.05mm*2mm*5.8m |
Our Certificate ASTM B280
| Copper Tube soft temper | 1-1/8" × 0.098" × 19.0 ft |
| 28.575mm*2.5mm*5.8m |
Our Certificate ASTM B280
| Copper Tube soft temper | 1-7/16" × 0.094" × 19.0 ft |
| 36mm*2.4mm*5.8m |
we are here for you
ASTM B280 Copper Tube – Certification, Quality Assurance & Delivery Standards
1. Certifications & Standards
Our ASTM B280 copper tubes fully comply with international standards and quality certifications:
ASTM B280 – Seamless copper tubing standard for air conditioning and refrigeration (ACR)
ISO 9001 – Quality Management System Certification
SGS / BV / Intertek Inspection Reports – Optional third-party verification
Material Test Reports (MTR) – Including alloy grade, chemical composition, and mechanical properties
RoHS / REACH Compliance – For environmentally safe materials
✅ These certifications ensure reliability, traceability, and compliance for residential, commercial, and industrial HVAC and refrigeration projects.
2. Quality Assurance & Inspection
We follow strict quality control procedures to ensure every copper tube meets ASTM B280 standards:
Raw Material Verification – Copper alloy grades C12200, C10200, DHP checked for purity and composition
Dimensional Inspection – Accurate outer diameter (OD), wall thickness, and length per specification
Surface Quality Check – Smooth, defect-free surface suitable for bending, brazing, and refrigeration installations
Mechanical & Thermal Testing – Ensure tensile strength, elongation, and thermal conductivity meet performance requirements
Third-Party Certification Available – Upon request, we can provide SGS, BV, or Intertek inspection reports
3. Packaging & Delivery Standards
We ensure safe, efficient, and traceable delivery for all ASTM B280 copper tubes:
Form Options: Straight tubes (3–6 m) or coiled tubing (15–50 m)
Packing: Export-standard wooden crates, cartons, or pallets for protection during transport
Custom Packaging: OEM labels, bulk cartons, and shipping bundles available
Delivery Options: Sea freight, air freight, and express courier for global buyers
Lead Time: Typically 15–30 days depending on quantity, size, and form
Tracking & Documentation: Shipping documents, MTR, and packing list provided
🚚 Our delivery and quality assurance system ensures ASTM B280 copper tubes reach your site intact, certified, and ready for installation, whether it's a 15 mm copper pipe, 22 mm copper tube, or larger industrial HVAC piping.
ASTM B280 Copper Tube Applications
ASTM B280 copper tubes are widely used in HVAC, refrigeration, and air conditioning systems due to their excellent thermal conductivity, corrosion resistance, and mechanical strength. Common applications include:
1. HVAC Systems
Residential and commercial air conditioning units
VRF (Variable Refrigerant Flow) systems
Centralized heating, ventilation, and cooling systems
Refrigerant piping for indoor and outdoor units
2. Refrigeration Systems
Cold storage and walk-in freezers
Commercial refrigeration units
Industrial refrigeration pipelines
Refrigerant lines for cooling equipment
3. Heat Exchangers
Condensers in air conditioning and refrigeration
Evaporators for heat transfer applications
Industrial process heat exchangers
4. ACR (Air Conditioning & Refrigeration) Piping
15 mm copper pipes, 22 mm copper tubes and other standard ACR sizes
Seamless tubing for easy bending, brazing, and installation
Straight or coiled tubes for flexible piping solutions
5. Industrial Applications
Process cooling systems
HVAC & refrigeration engineering projects
Large-scale commercial and industrial cooling networks
Key Advantages in Applications:
High thermal conductivity for efficient heat transfer
Corrosion-resistant for long-term durability
Flexible installation – supports bending and brazing on-site
Available in multiple sizes to suit small residential units or large industrial projects
some statistics about ASTM B280 you must know
ASTM B280 Copper Tube FAQ
1. What sizes of ASTM B280 copper tubes do you supply?
We supply a full range of ASTM B280 copper tube sizes, from 6 mm / 1/8″ to 35 mm / 1 3/8″, including popular sizes like 15 mm copper pipe and 22 mm copper tube, with wall thicknesses per ASTM B280 standard. Custom diameters are also available on request.
2. What material grades are available for ASTM B280 copper pipes?
Our copper tubes are made from C12200 (commercially pure copper), C10200 (oxygen-free copper), and DHP (high-phosphorus deoxidized copper), ensuring excellent thermal conductivity, corrosion resistance, and mechanical strength for HVAC and refrigeration applications.
3. Are ASTM B280 copper tubes supplied in straight or coiled forms?
We provide both straight tubes (3–6 m standard lengths) and coiled copper tubing (15–50 m), suitable for residential, commercial, and industrial HVAC and refrigeration projects.
4. Can you provide OEM packaging or custom orders?
Yes, we offer OEM packaging, custom labeling, and bulk supply, meeting the needs of distributors, contractors, and global buyers.
5. What is the minimum order quantity (MOQ) for ASTM B280 copper tubes?
MOQ depends on size, form (straight or coil), and packaging requirements, but we support small to large-scale orders for both domestic and international clients.
6. What standards and certifications do your copper tubes meet?
All our tubes comply with ASTM B280 standard. We can provide Material Test Reports (MTR), ISO certification, SGS or BV inspection reports, ensuring reliable quality and traceability.
7. Are these copper tubes suitable for air conditioning and refrigeration systems?
Absolutely. ASTM B280 copper tubes are specifically designed for HVAC, ACR, and refrigeration piping, including condensers, evaporators, heat exchangers, and refrigerant lines.
8. How are the copper tubes packaged for shipping?
We provide export-standard packaging, including wooden crates, cartons, or pallets, ensuring safe delivery for bulk orders or international shipments.
9. Do you supply a copper tube size chart or specification sheet?
Yes, we provide a detailed size chart with OD, wall thickness, alloy grade, and application, helping buyers select the right copper pipe for HVAC or refrigeration projects.
10. Can ASTM B280 copper tubes be bent or brazed on-site?
Yes, our tubes have excellent ductility and thermal properties, allowing on-site bending, brazing, and installation without compromising performance.
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