Copper Materials for HVAC & Refrigeration
We supply a complete range of copper materials for HVAC manufacturers and engineering projects, including copper tubes, copper strips, copper rods, copper plates, and copper wires. Among them, seamless copper tubes are the primary material, widely used for refrigerant lines, condenser coils, evaporator coils, and heat exchangers, while other copper products are used in electrical connections, terminals, fittings, brackets, and custom-machined components.
HVAC Components & Recommended Copper Materials
HVAC and refrigeration systems rely on different copper materials depending on the component's function. Copper tubes are the primary material, widely used for refrigerant transportation and heat exchange due to their excellent thermal conductivity and corrosion resistance. Copper strips, rods, wires, and plates are also used in electrical connections, structural parts, and machined components to ensure reliable system performance.
| HVAC Component | Recommended Copper Material | Common Grade | Typical Application |
|---|---|---|---|
| Evaporator Coil | Copper Tube | C12200 | Heat transfer and refrigerant evaporation |
| Condenser Coil | Copper Tube | C12200 | Condensing refrigerant and heat dissipation |
| Refrigerant Line | Copper Tube | C12200 | Refrigerant transportation |
| Heat Exchanger | Copper Tube | C12200 / C68700 / C70600 | Efficient heat exchange |
| Distributor Tube | Copper Tube | C12200 | Refrigerant distribution |
| Copper Fittings | Copper Rod | C11000 / C12200 | Valves, joints, and machined fittings |
| Electrical Terminal | Copper Strip | C11000 | Power distribution and electrical connections |
| Motor Windings | Copper Wire | C11000 / C10200 | Compressor and fan motors |
| Mounting Plate & Bracket | Copper Plate | C11000 | Structural support and heat dissipation |
Why These Copper Materials?
Copper Tubes – The most important material in HVAC systems, offering excellent heat transfer, pressure resistance, and brazing performance.
Copper Strips – Used for electrical terminals and bus connections because of their high electrical conductivity.
Copper Rods – Ideal for machining valves, fittings, and custom HVAC components.
Copper Wires – Commonly used in compressor motors, fan motors, and electrical wiring.
Copper Plates – Applied in mounting structures, connection plates, and heat-dissipation components.
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Available Copper Product Forms for HVAC Applications
We supply a complete range of copper materials for HVAC and refrigeration systems. Copper tubes are the primary choice for heat transfer and refrigerant applications, while copper rods, strips, plates, and wires are widely used in electrical, structural, and precision-machined components.
Straight Copper Tube
Common Grades: C12200, C12000, C11000
Standards: ASTM B280, ASTM B68, ASTM B75, EN 12735
Temper: Soft (O60), Half Hard (H55), Hard (H58)
Surface Finish: Bright, Polished, Clean Annealed
Typical Applications: Condensers, Evaporators, Heat Exchangers, Refrigerant Piping
Pancake Copper Coil
Common Grades: C12200, C12000
Standards: ASTM B280, EN 12735
Temper: Soft Annealed (O60)
Surface Finish: Bright, Clean Annealed
Typical Applications: Split Air Conditioners, Refrigerant Lines, Heat Pumps, Field Installation
Level Wound Coil (LWC)
Common Grades: C12200, C12000
Standards: ASTM B280, EN 12735
Temper: Soft Annealed (O60)
Surface Finish: Bright, Clean Annealed
Typical Applications: Coil Manufacturing, Commercial HVAC Equipment, Refrigeration Systems, Heat Pump Production
Inner Grooved Copper Tube
Common Grades: C12200
Standards: ASTM B280, EN 12735
Temper: Soft Annealed (O60)
Surface Finish: Inner Grooved, Bright Outer Surface
Typical Applications: High-Efficiency Air Conditioners, VRF Systems, Heat Pumps, Inverter Air Conditioners
Custom Copper Tubes
Common Grades: C12200, C12000, C11000
Standards: ASTM, EN, JIS, GB
Temper: Soft (O60), Half Hard (H55), Hard (H58)
Surface Finish: Bright, Polished, Customized Finish
Typical Applications: OEM HVAC Components, Custom Heat Exchangers, Refrigeration Equipment, Industrial Cooling Systems
Other Copper Products
Available Products: Copper Rod, Copper Strip, Copper Plate, Copper Wire
Common Grades: C11000, C12200, C10200
Standards: ASTM, EN, JIS
Temper: O, H, Customized
Surface Finish: Mill Finish, Bright, Tin Plated, Silver Plated
Typical Applications: Electrical Terminals, Busbars, Connectors, Valves, Fittings, Structural Components
Copper Grade Comparison for HVAC & Refrigeration
Choosing the right copper grade is essential for HVAC and refrigeration systems. While several copper alloys are available, C12200 and C12000 are the most widely used for copper tubing due to their excellent thermal conductivity, corrosion resistance, and brazing performance. C11000 is commonly selected for electrical components such as terminals and busbars. The comparison below helps you select the most suitable material for your application.
| Grade | Equivalent EN Grade | Thermal Conductivity | Brazability | Corrosion Resistance | Typical Applications |
|---|---|---|---|---|---|
| C12200 | Cu-DHP (CW024A) | ★★★★★ | ★★★★★ | ★★★★★ | Refrigerant tubes, condensers, evaporators, heat exchangers |
| C12000 | Cu-DLP (CW021A) | ★★★★★ | ★★★★★ | ★★★★☆ | Air conditioning tubes, refrigeration piping, HVAC equipment |
| C11000 | Cu-ETP (CW004A) | ★★★★★ | ★★★☆☆ | ★★★★☆ | Electrical terminals, busbars, connectors, motor components |
Which Copper Grade Should You Choose?
C12200 – Best Choice for HVAC Copper Tubes
Excellent brazability for leak-free joints
Outstanding corrosion resistance
Compatible with ASTM B280 and EN 12735
Preferred for refrigerant lines and heat exchangers
Recommended Applications: Condensers, Evaporators, Refrigerant Tubes, Heat Exchangers
C12000 – Reliable Alternative for General HVAC Applications
High thermal conductivity
Good formability and fabrication performance
Suitable for a wide range of HVAC equipment
Cost-effective for standard cooling systems
Recommended Applications: Air Conditioning Tubes, Refrigeration Systems, General HVAC Piping
C11000 – Ideal for Electrical Components
Superior electrical conductivity
Easy fabrication and stamping
Widely used for electrical and power transmission parts
Recommended Applications: Busbars, Electrical Terminals, Connectors, Motor Windings
Material Selection Guide
| If You Need... | Recommended Grade |
|---|---|
| Refrigerant Tubes | C12200 |
| Heat Exchangers | C12200 |
| Air Conditioning Systems | C12200 / C12000 |
| Refrigeration Piping | C12200 / C12000 |
| Electrical Connections | C11000 |
| Busbars & Terminals | C11000 |
Request Material Recommendation
International Standards for HVAC Copper Materials
| Standard | Product | Description | Typical Application |
|---|---|---|---|
| ASTM B280 | Copper Tube | Seamless copper tube for air conditioning and refrigeration | Refrigerant Lines, Air Conditioners |
| ASTM B68 | Copper Tube | General seamless copper tube | Heat Exchangers, Condensers |
| ASTM B75 | Copper Tube | General-purpose seamless copper tube | Industrial HVAC Systems |
| EN 12735 | Copper Tube | European refrigeration copper tube | HVAC & Refrigeration |
| ASTM B152 | Copper Strip & Plate | Rolled copper products | Electrical Components |
| ASTM B187 | Copper Rod | Copper rod | Valves & Fittings |
| ASTM B3 | Copper Wire | Soft copper wire | Motors & Electrical Systems |
Available Copper Tube Sizes
We supply copper tubes in a wide range of diameters and wall thicknesses for HVAC and refrigeration applications. Standard dimensions are available from stock, while custom sizes and precision tolerances can be manufactured according to your drawings or technical requirements.
| Specification | Available Range |
|---|---|
| Outside Diameter (OD) | 4.00 – 108.00 mm |
| Wall Thickness | 0.30 – 5.00 mm |
| Straight Tube Length | Up to 6,000 mm |
| Pancake Coil Length | Up to 100 m |
| Level Wound Coil | Customized |
| Custom Dimensions | Available |
Dimensional Tolerances
Outside Diameter Tolerance: ±0.02 mm to ±0.10 mm (depending on size)
Wall Thickness Tolerance: According to ASTM / EN standards
Length Tolerance: Customizable
Straightness: Available upon request
Concentricity: Precision controlled
Custom Manufacturing
We support customized production to meet OEM and project-specific requirements.
✔ Custom Outside Diameter (OD)
✔ Custom Wall Thickness
✔ Custom Tube Length
✔ Cut-to-Length Service
✔ Special Tolerance Requirements
✔ Drawing-Based Manufacturing
✔ Small MOQ & Bulk Production
Copper Tube Heat Treatment & Tempers
Soft Annealed (O60)
Heat Treatment: Fully Annealed
Features:
Excellent flexibility
Easy bending and flaring
Outstanding brazability
Suitable for complex installation
Typical Applications:
Pancake Coils, Refrigerant Lines, Split Air Conditioners, Heat Pumps
Half Hard (H55)
Heat Treatment: Partially Cold Worked
Features:
Good balance of strength and formability
Moderate bending capability
Improved mechanical strength
Easy fabrication
Typical Applications:
Straight Copper Tubes, Commercial HVAC Equipment, Heat Exchangers
Hard Drawn (H58)
Heat Treatment: Cold Drawn
Features:
High mechanical strength
Excellent dimensional stability
High pressure resistance
Suitable for straight piping
Typical Applications:
Industrial Refrigeration, Condensers, Chillers, Structural Copper Tubing
Material Selection Guide
| Temper | Flexibility | Strength | Recommended Applications |
|---|---|---|---|
| O60 (Soft Annealed) | Excellent | ★★☆☆☆ | Pancake Coils, Refrigerant Lines, Heat Pumps |
| H55 (Half Hard) | Good | ★★★★☆ | Straight Tubes, Heat Exchangers, Commercial HVAC |
| H58 (Hard Drawn) | Limited | ★★★★★ | Industrial Piping, Condensers, Chillers |
Copper Surface Finish Options
We provide multiple surface finish options to meet the requirements of HVAC, refrigeration, and electrical applications. Bright and degreased finishes are the standard choice for copper tubes, while plated finishes are available for selected copper products upon request.
| Surface Finish | Available Products | Process | Features | Typical Applications |
|---|---|---|---|---|
| Bright Annealed | Straight Copper Tube, Pancake Copper Coil, LWC Copper Coil | Bright Annealing | Smooth, oxide-free surface with excellent brazability | Refrigerant Lines, Condensers, Evaporators, Heat Exchangers |
| Polished | Copper Tube, Copper Rod, Copper Plate | Mechanical Polishing | Improved surface smoothness and appearance | HVAC Equipment, Fabricated Components, Industrial Applications |
| Degreased & Cleaned | Copper Tube, Pancake Copper Coil | Degreasing & Cleaning | Oil-free, clean inner and outer surfaces for refrigeration service | Air Conditioning Systems, Refrigeration Equipment, Heat Pumps |
| Tin-Plated (Optional) | Copper Strip, Copper Wire | Electroplating | Improved corrosion resistance and solderability | Electrical Terminals, Connectors, Busbars |
| Silver-Plated (Optional) | Copper Strip, Copper Busbar | Electroplating | Excellent electrical conductivity and high-temperature performance | High-Current Electrical Systems, Power Distribution |
Quality Inspection & Testing
Every batch of copper materials undergoes strict quality inspection before shipment to ensure compliance with ASTM, EN, JIS, and customer specifications. Test reports and third-party inspections are available upon request.
| Inspection Item | Test Standard / Method | Purpose |
|---|---|---|
| Chemical Composition Analysis | ASTM E478 / Spectrometer | Verify copper grade and alloy composition |
| Dimensional Inspection | Calipers, Micrometers | Check OD, wall thickness, length, and tolerance |
| Surface Inspection | Visual Inspection | Ensure smooth, clean, and defect-free surfaces |
| Mechanical Properties Test | ASTM E8 / Tensile Testing | Verify tensile strength and elongation |
| Hardness Test | Rockwell / Vickers | Confirm temper and mechanical properties |
| Eddy Current Test | ASTM E243 | Detect surface and subsurface defects in copper tubes |
| Hydrostatic Pressure Test | ASTM B280 / Customer Requirement | Verify pressure resistance and leak integrity |
| Flattening & Flaring Test | ASTM B280 | Evaluate tube ductility and forming performance |
| Air Tightness Test (Optional) | Air Pressure Test | Check sealing performance for refrigeration tubes |
| PMI (Positive Material Identification) (Optional) | XRF Analyzer | Confirm material grade before shipment |
Packaging & Shipping
To ensure copper materials arrive in perfect condition, we use export-standard packaging designed to prevent deformation, scratches, oxidation, and moisture damage during transportation. Custom packaging solutions are also available according to customer requirements.
| Packaging Method | Suitable Products | Features |
|---|---|---|
| Wooden Case | Straight Copper Tubes, Copper Rods, Copper Plates | Strong protection for long-distance sea freight |
| Plywood Case | Precision Copper Products | Fumigation-free, export compliant |
| Bundled with Protective Caps | Straight Copper Tubes | Prevents tube end damage and contamination |
| Plastic Film Wrapping | Copper Tubes, Rods, Plates | Protects against dust, scratches, and moisture |
| Pancake Coil Packaging | Pancake Copper Coil | Coil secured with protective wrapping for easy handling |
| Pallet Packaging | Bulk Orders | Stable loading, suitable for container transportation |
Export Protection
✔ Plastic End Caps for Copper Tubes
✔ Waterproof Film Wrapping
✔ Anti-Scratch Protection
✔ Moisture & Corrosion Protection
✔ Strong Wooden or Plywood Cases
✔ Export Shipping Marks Available
✔ Customized Labels & Barcodes
Standard Lead Time
| Order Type | Estimated Lead Time |
|---|---|
| Stock Materials | 3–7 Days |
| Standard Production | 10–20 Days |
| Custom Sizes | 15–25 Days |
| OEM Processing | 20–30 Days |
| Large Volume Orders | Negotiable Based on Quantity |
Manufacturing Equipment
| Equipment | Purpose |
|---|---|
| Copper Tube Extrusion Line | Produces seamless copper tubes |
| Cold Drawing Machine | Achieves precise OD and wall thickness |
| Bright Annealing Furnace | Produces soft, clean, oxide-free tubes |
| Inner Grooving Machine | Manufactures inner grooved copper tubes |
| Tube Coiling Machine | Produces pancake coils and LWC coils |
| Automatic Straightening & Cutting Line | Custom tube lengths with high straightness |
| Hydrostatic Pressure Tester | Verifies pressure resistance |
| Eddy Current Testing System | 100% non-destructive defect inspection |
| Spectrometer | Confirms copper grade and composition |
| Automatic Packaging Line | Protects products for international shipment |
FAQ
1. What copper grade is most commonly used for HVAC and refrigeration systems?
C12200 (Phosphorus-Deoxidized Copper) is the most widely used grade for HVAC and refrigeration copper tubes due to its excellent thermal conductivity, corrosion resistance, and brazing performance. C12000 is also commonly used for general HVAC applications, while C11000 is mainly used for electrical components such as terminals and busbars.
2. What standards do your copper tubes comply with?
Our copper tubes are manufactured according to international standards, including ASTM B280, ASTM B68, ASTM B75, and EN 12735. Additional standards can also be supported based on customer requirements.
3. What types of copper tubes do you supply?
We supply a complete range of HVAC copper tubes, including Straight Copper Tubes, Pancake Copper Coils, Level Wound Coils (LWC), Inner Grooved Copper Tubes, and Custom Copper Tubes.
4. Can you manufacture custom copper tubes?
Yes. We provide OEM manufacturing services based on customer drawings or technical specifications, including custom outside diameter, wall thickness, length, temper, and packaging.
5. What heat treatment options are available?
Our copper tubes are available in Soft (O60), Half Hard (H55), and Hard (H58) tempers to meet different forming, installation, and operating requirements.
6. Do you provide Mill Test Certificates (MTC)?
Yes. We can provide Mill Test Certificates (EN 10204 3.1), chemical composition reports, mechanical property reports, dimensional inspection reports, and third-party inspection reports upon request.
7. What is your minimum order quantity (MOQ)?
MOQ depends on the product type and specifications. Standard sizes are available with flexible order quantities, while customized products are quoted based on the project requirements.
8. How long is your delivery time?
Stock materials are typically available within 3–7 days, while standard production orders usually require 10–20 days. Customized products may require additional production time depending on specifications and quantity.
9. Do you provide international shipping?
Yes. We export copper materials worldwide and support FOB, CIF, CFR, EXW, and other trade terms. Sea freight, air freight, and express delivery can be arranged according to customer requirements.