أنابيب ومواسير ولفائف ووصلات نحاسية
استعرض
Heat Exchanger Copper Tubes for HVAC, Condensers & Industrial Cooling Systems
Product Overview
R V Metal Corporation supplies high-performance Heat Exchanger Copper Tubes engineered for demanding thermal transfer applications in HVAC, refrigeration, power plants, petrochemicals, process industries, and industrial cooling systems. Manufactured primarily from Copper DHP (C12200) for its excellent thermal conductivity, corrosion resistance, and superior workability, these tubes ensure maximum heat transfer efficiency with long operational life. Our range includes plain tubes, smooth bore tubes, finned tubes, and enhanced surface tubes suitable for condensers, evaporators, chillers, oil coolers, radiators, and heat recovery units. Produced with strict dimensional accuracy, controlled grain structure, and clean internal surfaces, each tube confirms to global standards such as ASTM B111, ASTM B75, EN 12451, and BS specifications. With availability in straight lengths, coils, and custom-fabricated options, R V Metal Corporation delivers reliable copper tubing solutions that enhance system efficiency, reduce energy consumption, and provide consistent performance across diverse industrial heat exchange applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material Grade | Copper DHP (C12200) – Deoxidized High Phosphorus |
| Standard Specifications | ASTM B111 / B75, EN 12451, BS 2871 Part 2, JIS H3300 |
| Manufacturing Condition | Soft Annealed (O60), Half Hard (H55), Hard Drawn (H80) |
| Outer Diameter Range | 6 mm to 108 mm (Custom OD available on request) |
| Wall Thickness Range | 0.5 mm to 10 mm depending on OD and application |
| Length Availability | 5m / 5.8m Straight Lengths, Level Wound Coils (LWC), Pancake Coils |
| Surface Finish | Bright Internal Surface, Deburred Ends, Clean & Dry for Heat Transfer |
| Internal Cleanliness | Degreased, Carbon-free, Non-oxidized surfaces suitable for refrigerants |
| Thermal Conductivity | ≈ 385 W/m·K at 20°C |
| Corrosion Resistance | Excellent resistance to freshwater, seawater, and industrial fluids |
| End Options | Plain Ends, Expanded Ends, Grooved Ends, U-bend Tubes |
| Testing | Eddy Current Test, Hydrostatic Test, Grain Size Test, Flattening & Flaring Tests |
| Applications | Condensers, Evaporators, Chillers, Heat Exchangers, Oil Coolers, Radiators |
Chemical Composition
| Element | Specification (%) | Description |
|---|---|---|
| Copper (Cu) | 99.90% min | Base metal ensuring high conductivity & corrosion resistance |
| Phosphorus (P) | 0.015% – 0.040% | Deoxidizer added for excellent weldability and cleanliness |
| Other Impurities | 0.05% max (combined) | Includes Ag, Bi, Pb, Sb, As — tightly controlled for purity |
| Residual Hydrogen | Nil | Ensures no hydrogen embrittlement during service |
UNS Codes & Grades
| UNS Code | Grade / Alloy Name | Standard Designation | Notes / Application Suitability |
|---|---|---|---|
| C12200 | Copper DHP (Deoxidized High Phosphorus) | ASTM B111, ASTM B75, EN 12451 | Most widely used grade for heat exchanger tubes due to excellent corrosion resistance & weldability. |
| C11000 | Electrolytic Tough Pitch Copper (ETP) | ASTM B152 | High electrical conductivity; used where thermal + electrical performance is needed. |
| C44300 | Admiralty Brass | ASTM B111, ASME SB111 | Used in marine condensers; excellent resistance to dezincification and seawater corrosion. |
| C68700 | Aluminium Brass | ASTM B111, EN 12451 | High resistance to impingement attack; suitable for high-velocity coolant flows. |
| C70600 | Copper Nickel 90/10 | ASTM B111, EN 12451 | Superior corrosion resistance in seawater; widely used in heat exchangers & coolers. |
| C71500 | Copper Nickel 70/30 | ASTM B111, EN 12451 | Higher strength & corrosion resistance; ideal for critical marine heat exchangers. |
Mechanical, Physical & Fabrication Properties
| Property | C12200 (Copper DHP) | C44300 (Admiralty Brass) | C68700 (Aluminium Brass) | C70600 (Cu-Ni 90/10) | C71500 (Cu-Ni 70/30) |
|---|---|---|---|---|---|
| Mechanical Strength (Tensile) | 220–260 MPa | 330–380 MPa | 350–420 MPa | 275–345 MPa | 310–370 MPa |
| Yield Strength (0.2% Proof) | 70–120 MPa | 90–150 MPa | 120–180 MPa | 105–135 MPa | 120–150 MPa |
| Elongation (%) | 40–50% | 25–35% | 25–30% | 30–40% | 30–40% |
| Hardness (HV) | 45–80 HV | 80–110 HV | 90–120 HV | 70–100 HV | 80–110 HV |
| Thermal Conductivity (W/m·K) | 320–340 | 110–120 | 90–100 | 50–60 | 30–40 |
| Electrical Conductivity (% IACS) | 85–90% | 28–30% | 28–30% | 10–15% | 7–10% |
| Corrosion Resistance | Excellent (general) | Excellent to seawater | High (impingement resistant) | Excellent to seawater & brine | Superior for high-salinity seawater |
| Weldability | Excellent | Good | Good | Excellent | Excellent |
| Brazing / Soldering | Excellent | Good | Good | Good | Good |
| Formability | Excellent | Good | Good | Good | Moderate |
| Operating Temperature Range | -196°C to 250°C | -100°C to 250°C | -100°C to 250°C | -200°C to 300°C | -200°C to 350°C |
Common Names & International Identifiers
| Grade | UNS Number | Common / Trade Names | International Identifiers | Typical Usage in Heat Exchangers |
|---|---|---|---|---|
| Copper DHP | C12200 | Phosphorus-Deoxidized Copper, DHP Copper | ISO Cu-DHP, EN CW024A, BS PB102 | General heat exchangers, low-pressure condensers, HVAC coils |
| Admiralty Brass | C44300 | Arsenical Admiralty Brass, Condenser Brass | EN CW706R, ISO CuZn28Sn1As | Marine condensers, power plant coolers, fresh water exchangers |
| Aluminium Brass | C68700 | Al Brass, Sea Water Brass | EN CW702R, ISO CuZn20Al2As | Seawater heat exchangers, ship engine coolers, evaporators |
| Cu-Ni 90/10 | C70600 | Copper Nickel 90/10, CuNi10Fe1Mn | EN CW352H, ISO CuNi10Fe1Mn | Seawater systems, desalination, brine coolers |
| Cu-Ni 70/30 | C71500 | Copper Nickel 70/30, CuNi30Mn1Fe | EN CW354H, ISO CuNi30Mn1Fe | High-velocity seawater condensers, offshore heat exchangers |
| High-Conductivity Copper | C11000 | ETP Copper, Electrolytic Tough Pitch Copper | ISO Cu-ETP, EN CW004A | Special heat exchangers requiring high thermal output |
Standards & International Equivalents
| Grade | UNS Number | Primary Standard | International Equivalents | Application Notes |
|---|---|---|---|---|
| Copper DHP | C12200 | ASTM B111 / B359 |
EN 12449 (CW024A) ISO 1635 Cu-DHP BS EN 1057 |
General heat exchangers, air-conditioning, HVAC coils |
| Admiralty Brass | C44300 | ASTM B111 / B466 |
EN 12451 (CW706R) ISO 1635 CuZn28Sn1As JIS H3300 BSB |
Marine condensers, power plant cooling systems |
| Aluminium Brass | C68700 | ASTM B111 / B466 |
EN 12451 (CW702R) ISO CuZn20Al2As JIS H3300 BSA |
Seawater heat exchangers, ship engine coolers |
| Cu-Ni 90/10 | C70600 | ASTM B111 / B466 |
EN 12451 (CW352H) ISO CuNi10Fe1Mn JIS H3300 CNC102 |
Desalination plants, brine coolers, seawater tubes |
| Cu-Ni 70/30 | C71500 | ASTM B111 / B466 |
EN 12451 (CW354H) ISO CuNi30Mn1Fe JIS H3300 CNC103 |
High-velocity seawater condensers, offshore exchangers |
| High-Conductivity Copper | C11000 | ASTM B111 / B280 |
EN 12449 (CW004A) ISO Cu-ETP JIS H3300 C1100 |
High thermal conductivity heat transfer applications |
Applications
| Material Grade | Typical Applications | Industry |
|---|---|---|
| Copper DHP (C12200) | HVAC coils, chiller units, refrigeration evaporators, air-conditioning condensers, heat recovery systems, oil coolers, standard industrial heat exchangers. | HVAC, Refrigeration, Building Services |
| Admiralty Brass (C44300) | Marine condensers, power plant cooling tubes, turbine condensers, closed-loop water cooling systems, brackish water exchangers. | Power Plants, Marine, Desalination |
| Aluminium Brass (C68700) | Seawater-cooled heat exchangers, ship engine coolers, petrochemical cooling lines, offshore platform exchangers, refinery cooling systems. | Marine, Offshore, Petrochemical |
| Cu-Ni 90/10 (C70600) | Desalination plants, seawater piping systems, heat exchangers exposed to saline water, industrial cooling towers, chemical processing coolers. | Desalination, Marine, Chemical Processing |
| Cu-Ni 70/30 (C71500) | High-velocity seawater condensers, offshore heat exchangers, naval cooling systems, oil & gas heat recovery systems, brine coolers. | Marine, Offshore, Oil & Gas |
| High Conductivity Copper (C11000) | Heat transfer coils, induction furnace cooling, transformer oil coolers, electrical cooling modules, high-efficiency finned-type heat exchangers. | Electrical, Industrial Cooling, Power Distribution |
Standard Copper Tube Dimensional Chart
| Outside Diameter (mm) | Wall Thickness (mm) | Inside Diameter (mm) | Theoretical Weight (kg/m) | Typical Application |
|---|---|---|---|---|
| 9.52 (3/8") | 0.30 – 0.76 | 8.72 – 8.00 | 0.080 – 0.190 | Evaporator / Condenser Coils |
| 12.70 (1/2") | 0.32 – 1.00 | 12.06 – 10.70 | 0.120 – 0.280 | Heat Exchanger Coils |
| 15.88 (5/8") | 0.40 – 1.24 | 15.08 – 13.40 | 0.180 – 0.460 | Shell & Tube Exchangers |
| 19.05 (3/4") | 0.50 – 1.65 | 18.05 – 15.75 | 0.260 – 0.690 | Industrial Cooling Systems |
| 22.23 (7/8") | 0.50 – 1.65 | 21.23 – 18.93 | 0.310 – 0.780 | Power Plant Condensers |
| 25.40 (1") | 0.60 – 2.00 | 24.20 – 21.40 | 0.390 – 1.050 | Chiller & Absorber Units |
| 28.60 (1-1/8") | 0.70 – 2.11 | 27.20 – 24.40 | 0.520 – 1.300 | Heat Recovery Systems |
| 31.75 (1-1/4") | 0.80 – 2.60 | 30.15 – 26.55 | 0.670 – 1.750 | Process Cooling |
| 38.10 (1-1/2") | 1.00 – 2.80 | 36.10 – 32.50 | 1.000 – 2.200 | Large Industrial Heat Exchangers |
| 50.80 (2") | 1.20 – 3.00 | 48.40 – 44.80 | 1.600 – 3.400 | Power & Desalination Plants |
| 63.50 (2-1/2") | 1.50 – 3.50 | 60.50 – 56.50 | 2.400 – 4.900 | Shell & Tube Exchangers (High Duty) |
| 76.20 (3") | 1.65 – 4.00 | 73.50 – 68.20 | 3.300 – 6.800 | Large Industrial & Marine Exchangers |
| 88.90 (3-1/2") | 1.65 – 4.47 | 86.20 – 80.00 | 3.900 – 8.700 | Petrochemical Heat Exchangers |
| 101.60 (4") | 2.00 – 5.00 | 97.60 – 91.60 | 5.200 – 11.800 | High-Capacity Condensers |
