Phosphorus-Deoxidized copper tubes (DHP) – C12200 has similar corrosion resistance to C11000. It gives excellent resistance to weathering and very good resistance to many chemicals. It is often used specifically for corrosion resistance, and is extensively used in sugar refineries for condensers and evaporators.
Deoxidized copper is the standard material for transferring heat from steam to water or air because of its excellent resistance to corrosion by fresh water and its high thermal conductivity.
Product Details
| Parameter | Details |
|---|---|
| Place of Origin | Henan Province, China |
| Brand Name | GNEE |
| Certification | ISO 9001-2008 |
| Minimum Order Quantity | 500 kgs |
| Packaging Details | Ply-wooden Case / Iron Case / Bundle with Plastic Cap |
| Delivery Time | 7 days |
| Payment Terms | L/C, T/T |
Specifications
| Parameter | Details |
|---|---|
| Product Name | Copper Tube |
| Standard | ASTM B111, ASTM B88, ASTM B280, ASTM B68 |
| Material | C12200, C11000, C44300, C68700, C70600, C71500 |
| Temper | H55 (Light Drawn), H80 (Hard Drawn), O61 (Annealed) |
| Technique | Cold Drawn |
| Shape | Straight Tube, Coil Tube |
| NDT (Non-Destructive Testing) | ET (Eddy Current), UT (Ultrasonic), HT (Hydrostatic), PT (Pneumatic) |
| Applications | Air Conditioning & Refrigeration, Gas, Heater, Oil Burner Lines, Plumbing Pipe, Steam Tubes |
Grade Equivalents
| China GB | ASTM | UK BS | Germany DIN | Japan JIS H |
|---|---|---|---|---|
| T2 | C11000 | C101 / C102 | E-Cu58 | C1100 |
| TP2 | C12200 | C106 | SF-Cu | C1220 |
Chemical Composition (ASTM B111 UNS C12200)
| Element | Min (%) | Max (%) |
|---|---|---|
| Copper (Cu) | 99.9 | - |
| Phosphorus (P) | 0.015 | 0.04 |
Tempers Available
| Temper Designation | Description |
|---|---|
| H55 | Light Drawn |
| H80 | Hard Drawn |
| O61 | Annealed |
| HR50 | Drawn and Stress-Relieved |
Mechanical Properties (Typical Values)
| Temper | Form | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) |
|---|---|---|---|---|
| O61 (Annealed) | Tube | 34 | 11 | 45 |
| H55 (Light Drawn) | Tube | 40 | 32 | 25 |
| H80 (Hard Drawn) | Tube | 55 | - | 8 |
| H04 (Hard) | Pipe | 50 | 45 | 6-12 |
| OS025 (0.025mm grain) | Tube | 34 | 11 | 45 |
| OS050 (0.050mm grain) | Tube | 32 | 10 | 45 |
Applications
| Industry | Application |
|---|---|
| HVAC | Air conditioning and refrigeration lines |
| Plumbing | Plumbing pipe and steam tubes |
| Industrial | Condenser, evaporator & heat exchanger tubes |
| Brewing | Brewery and distillery tubes |
| Fluid Power | Gasoline, hydraulic, and oil lines |
| Gas Systems | Gas, heater, and oil burner lines |
FAQ
Q1: What is the difference between C12200 and CW024A?
A: C12200 is the UNS designation (USA), while CW024A is the European EN designation for the exact same material. Both are phosphorus-deoxidized copper (DHP) with 0.015-0.040% phosphorus and minimum 99.90% copper. CW024A is also known as Cu-DHP. They are fully interchangeable for heat exchanger and condenser applications.
Q2: What is the difference between C12200 and C11000 for heat exchanger tubes?
A: C12200 contains 0.015-0.040% phosphorus for deoxidation, making it resistant to hydrogen embrittlement during brazing and welding. C11000 contains oxygen and cannot be brazed in reducing atmospheres. For heat exchanger tubes that require tube-to-tubesheet brazing or welding, C12200 is required. C11000 is used only for mechanical joints.
Q3: What does DHP stand for in copper tubes?
A: DHP stands for "Deoxidized High Phosphorus." It refers to C12200 copper with 0.015-0.040% phosphorus content. The high phosphorus level removes oxygen completely during melting, preventing hydrogen embrittlement. DHP is the standard material for heat exchanger tubes, plumbing tubes, and HVAC tubes where brazing or welding is required.
Q4: What are the temper options for ASTM B111 C12200 tubes?
A: ASTM B111 C12200 tubes are available in four tempers:
| Temper | Description | Typical Use |
|---|---|---|
| O61 | Annealed (soft) | Tube rolling into tubesheets |
| H55 | Light Drawn | Slightly stronger, still formable |
| H80 | Hard Drawn | Rigid, straight lines, no bending |
| HR50 | Drawn & Stress-Relieved | High strength with some ductility |
Q5: What is the minimum order quantity for GNEE's C12200 tubes?
A: The minimum order quantity for ASTM B111 C12200 seamless copper tubes from GNEE is 500 kgs (approximately 1,100 lbs). For smaller quantities, please contact our sales team to discuss availability. Sample orders may be possible for standard sizes.
Q6: What non-destructive testing (NDT) is available for C12200 tubes?
A: GNEE offers four types of NDT for C12200 seamless tubes:
| NDT Method | Purpose |
|---|---|
| ET (Eddy Current) | Detects surface and near-surface defects |
| UT (Ultrasonic) | Detects internal defects |
| HT (Hydrostatic) | Pressure test for leaks |
| PT (Pneumatic) | Air pressure test for leaks |
Q7: What are the typical applications for ASTM B111 C12200 tubes?
A: Typical applications include: air conditioning and refrigeration lines, gas lines, heater and oil burner lines, plumbing pipes, steam tubes, brewery and distillery tubes, gasoline and hydraulic lines, and condenser/evaporator/heat exchanger tubes. The tube's high thermal conductivity (339 W/m·K) and corrosion resistance make it ideal for heat transfer applications.
Q8: What is the difference between TP2 (China) and C12200 (ASTM)?
A: TP2 is the Chinese GB/T 18033 grade for phosphorus-deoxidized copper. C12200 is the ASTM UNS designation. They have identical chemical requirements: minimum 99.90% copper and 0.015-0.040% phosphorus. TP2 and C12200 tubes are interchangeable. The only difference is the marking on the tube and the certifying standard.
Q9: What is the typical delivery time for C12200 tubes from GNEE?
A: Standard delivery time for ASTM B111 C12200 seamless copper tubes is 7 days after order confirmation for stock sizes. For custom sizes or large quantities, delivery time is typically 15-25 days. Expedited shipping options are available upon request.
Q10: How are C12200 tubes packaged for shipment?
A: GNEE packages C12200 seamless copper tubes in ply-wooden cases, iron cases, or bundles with plastic end caps on each tube. End caps prevent debris entry and protect the tube ends during transit. Bundles are secured with steel straps. All packaging is suitable for sea, air, or land freight.
Q11: What certifications does GNEE provide for C12200 tubes?
A: GNEE provides mill test reports (MTR) certifying chemical composition, mechanical properties, and NDT results for each heat/lot. Additional third-party inspections (SGS, BV, ABS, DNV, GL, etc.) are available upon request at additional cost.
Q12: Can C12200 tubes be used for steam service?
A: Yes, C12200 tubes are suitable for steam service up to 200°C (392°F) continuously. Deoxidized copper is the standard material for transferring heat from steam to water or air in condensers and evaporators. For higher temperature steam, consult pressure derating factors. C12200 resists hydrogen embrittlement, which is critical in steam systems where hydrogen can be present.
How Do We Package Copper Heat Exchanger Tubes for Global Delivery?
Poor packaging destroys even the best copper heat exchanger tube. As a professional copper heat exchanger tube factory serving copper heat exchanger tube USA, Europe, UAE, Saudi Arabia, and India, we follow military-grade export packaging standards to ensure zero damage during sea or air freight.
Our Standard Packaging Process:
| Packaging Stage | Material / Method | Purpose |
|---|---|---|
| Individual Tube Protection | Anti-rust VCI paper + plastic end caps | Prevents moisture, dust, and scratches on copper tube heat exchanger inner surfaces. |
| Bundling | Nylon straps + wooden spacers | Keeps copper heat exchanger tube OD 19mm, 1 inch, or 5/8 inch sizes organized and vibration-free. |
| Moisture Barrier | Thick PE film wrap (heat-shrunk) | Blocks humidity during long sea voyages to copper heat exchanger tube Germany or Saudi Arabia. |
| Outer Packing | Export-grade plywood cases or steel-banded wooden crates | Withstands stacking and rough handling. Each crate labeled with PO number, alloy (e.g., SB111 C70600), and quantity. |
| Documentation | Packing list + Mill Test Certificate (MTC) attached outside | Customs clearance support for copper heat exchanger tube stockist and distributor partners. |
For U-Bundle Orders: U tube heat exchanger and U tube bundle heat exchanger are placed in dedicated steel jigs inside the crate to prevent bending radius distortion.
Our Factory & Equipment
| Equipment Type | Specification / Capability | Quality Impact |
|---|---|---|
| Horizontal Continuous Casting Line | 10-ton capacity | Produces homogeneous copper alloy tube for heat exchanger billets with zero porosity. |
| Three-Roll Piercing Mill | Up to 60mm OD | Precision wall thickness control for heat exchanger tube wall thickness as low as 0.5mm. |
| Cold Drawing Bench | 5 draws in sequence | Achieves tight tolerances on copper heat exchanger tube length and heat exchanger pipe diameter. |
| Straightening & Cutting Line | CNC servo-controlled | Burr-free cutting for copper heat exchanger tube 3/4 inch and 1 inch to exact project lengths. |
| U-Bending Machine | CNC mandrel type | Produces u tube condenser and U tube bundle heat exchanger without kinking or ovality. |
| Eddy Current Tester | NDT (Non-Destructive Testing) | 100% inspection of C70600 tube and C71500 tube for pinholes or cracks per ASTM B111 pdf standards. |
| Hydrostatic Tester | Up to 200 bar | Validates heat exchanger tube expansion and tube rolling integrity. |
| Spectrometer | Optical emission (OES) | Confirms chemical composition of ASME SB111, EN 12451, and JIS H3300 grades on every batch. |
Our Certifications & Compliance:
ASTM B111 pdf and ASME SB111 pdf full traceability.
ISO 9001:2015 quality management system.
Third-party inspection accepted: SGS, BV, Lloyds, or TUV.
Copper heat exchanger tube life expectancy testing reports available upon request.
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