TP1/C12000 Heat Exchanger Copper Tube
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of tp1/c12000 heat exchanger copper tube in China, also supports customized service. Welcome to buy discount tp1/c12000 heat exchanger copper tube for sale here from our factory. Quality products and reasonable price are available.
Why are TP1/C12000 copper tubes used in the heat exchanger?
TP1/C12000 copper tubes are the preferred material for high-efficiency heat exchangers, as their low phosphorus content delivers thermal conductivity close to that of pure copper, directly improving energy efficiency and reducing system energy consumption. Simultaneously, the phosphorus deoxidation process provides excellent corrosion resistance and high-temperature stability, ensuring consistent performance during long-term thermal cycling. The material also offers superior formability and welding reliability, supporting compact heat exchange designs and guaranteeing manufacturing quality, ultimately achieving better total cost of ownership through extended lifespan and reduced maintenance.
Standards & Sizes for Copper Tubes (TP1/C12000)
| Standard Category | Standard Number | Title / Scope | Key Sizes & Tolerances |
|---|---|---|---|
| ASTM (U.S.) | ASTM B280 | Seamless Copper Tube for Air Conditioning and Refrigeration | OD: 6.35–19.05 mm (¼"–¾") Wall: 0.51–1.02 mm (ACR series) Temper: Annealed (soft) |
| ASTM B88 | Seamless Copper Water Tube | OD: 15–54 mm (½"–2") Wall: Type K/L/M Temper: Half-hard/Hard |
|
| ASTM B75 | Seamless Copper Tube for General Use | OD: 3–300 mm Wall: 0.3–12 mm Temper: Soft/Half-hard/Hard |
|
| EN (Europe) | EN 12735‑1 | Seamless Round Copper Tubes for ACR – Part 1: Piping Systems | OD: 6–28 mm Wall: According to series (e.g., 0.8 mm for 12 mm OD) Temper: Annealed or hard-drawn |
| EN 1057 | Seamless, Round Copper Tubes for Water and Gas in Sanitary and Heating | OD: 15–108 mm Wall: Series 1–3 (e.g., 1.0 mm for 15 mm OD) Temper: Hard or half-hard |
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C12000 Copper Alloy Data Sheet
| Property Category | Parameter | Value Range | Test Standard / Notes |
|---|---|---|---|
| Chemical Composition (wt%) | Copper (Cu) + Silver (Ag) | ≥ 99.90% | ASTM B152, oxygen-free, low-phosphorus copper |
| Phosphorus (P) | 0.015% – 0.040% | Critical for deoxidation; eliminates hydrogen embrittlement | |
| Lead (Pb) | ≤ 0.005% | Controlled to prevent hot shortness | |
| Oxygen (O) | ≤ 0.005% | Low-oxygen design ensures high-temperature stability | |
| Iron (Fe) | ≤ 0.05% | - | |
| Zinc (Zn) | ≤ 0.03% | - | |
| Sulfur (S) | ≤ 0.005% | - | |
| Total Impurities | ≤ 0.10% | - | |
| Physical Properties | Thermal Conductivity | 380 – 400 W/(m·K) | Near-pure copper performance; optimal for heat exchange |
| Electrical Conductivity | ≥ 98.0% IACS | International Annealed Copper Standard | |
| Density | ≈ 8.94 g/cm³ | Based on pure copper reference | |
| Melting Point | ≈ 1083 °C | - | |
| Softening Temperature | ≈ 1500 °C | Far exceeds typical evaporator operating temperatures (<200 °C) | |
| Mechanical Properties (Cold Worked) | Tensile Strength (σb) | 220 – 360 MPa | Varies with temper condition (O to H04) |
| Yield Strength (σs) | 150 – 300 MPa (typical) | Not strictly specified; inferred from temper state | |
| Elongation (δ) | 35% – 45% | O temper: ≥45%; H04 temper: ≥35% | |
| Hardness (HR F Scale) | 54 – 93 | H00 (1/8 hard) to H04 (hard) | |
| Hardness (HR Superficial 30T) | 18 – 62 | Applicable for thin gauges; thickness-dependent |
C12000 Equivalent Designation
| Standard System | Equivalent Designation | Material Type | Key Composition (wt%) | Notes |
|---|---|---|---|---|
| ASTM (USA) | C12000 | Oxygen-Free Phosphorus-Deoxidized Copper | Cu ≥99.90%, P: 0.015–0.040%, O ≤0.005% | Base standard; defines low-phosphorus OFC for high thermal/electrical performance |
| GB/T (China) | TP1 | Oxygen-Free Copper | Cu ≥99.95%, P: 0.001–0.040%, O ≤0.003% | Direct national equivalent; identical in application to C12000 in heat exchangers and evaporators |
| JIS (Japan) | C1020 | Oxygen-Free Copper (OFC) | Cu ≥99.95%, O ≤0.001% | Widely accepted in engineering as functionally equivalent; slightly lower oxygen content than C12000 |
| EN (EU) | CW005A | Oxygen-Free Copper | Cu ≥99.95%, O ≤0.003% | Closest European equivalent; matches C12000 in purity and performance; CW004A is ETP (C11000), not equivalent |
| Industry Common Code | - | - | - | CDA 102 refers to C11000 (ETP), not C12000 - common misidentification in supplier catalogs |
Specific Applications of TP1/C12000 Copper Tubes in Heat Exchangers
HVAC&R Systems
Condenser Coils: Act as the primary tubing through which refrigerant releases heat to air or water, typically fabricated into finned tubes or coiled configurations.
Evaporator Coils: Function as the main tubing where refrigerant absorbs heat from air or water, commonly in finned-tube or immersion coil designs.
Shell and Tube Heat Exchangers: Used as the heat transfer tubes on either the tube side or shell side for fluid-to-fluid heat exchange (e.g., water-to-water, water-to-refrigerant).
Industrial & Energy Sectors
Chiller Barrels: Serve as the heat transfer tubes within the evaporator and condenser sections of chillers.
Heat Pump Heat Exchangers: Used in both indoor and outdoor units for heat absorption and rejection.
Power Plant Condensers: Employed as condenser tubes for steam condensation in large-scale power stations (requires specific protection based on water quality).
Chemical/Petrochemical Process Heat Exchangers: Suitable for heat exchange with non-strongly-oxidizing media, such as lubricating oil cooling or process fluid heating.
Transportation
Automotive A/C Condensers & Evaporators: Manufactured into microchannel flat tubes or traditional round tubes.
Marine Central Coolers: Used for seawater-freshwater heat exchange.
Railway (High-speed Train/Subway) A/C Heat Exchange Units.
Specialized & Precision Equipment
Data Center Liquid Cooling Systems: Used in cold plates or piping for server cooling.
Medical Sterilization Equipment Heat Exchange Modules.
Laboratory Precision Temperature Control Systems.
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Our factory
Our factory is an enterprise dedicated to the research, development, and manufacturing of high-performance copper tubes. With a fully digitalized end-to-end quality control system at its core, we ensure zero-defect delivery from raw materials to finished products. The high-end copper tubes we produce, such as TP1/C12000, comply with multiple international standards including ASTM, EN, and GB. Thanks to their thermal conductivity close to that of pure copper and exceptional corrosion resistance, they are widely used in the global high-end heat exchanger manufacturing sector. We not only supply standardized products but also provide customers with weld-ready pretreatment, JIT precise delivery, and material customization solutions, helping clients enhance production efficiency and reduce overall costs.
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