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EN1057 Copper Pipe for Residential Plumbing
EN1057 Cu-DHP copper pipe is designed for residential plumbing, heating systems, and domestic water supply applications. With excellent durability, clean surfaces, and compatibility with common installation methods, it provides safe and reliable pipeline solutions.
What Is Copper Tube & Pipe？
Product Definition：
Copper tubes and pipes are hollow, long-length products manufactured from high-purity copper through extrusion and precision drawing processes. With copper content of 99.9% or higher, copper tubes offer exceptional thermal and electrical conductivity, outstanding corrosion resistance, excellent formability, and 100% recyclability. Copper has been the preferred material for HVAC, refrigeration, plumbing, and industrial applications for over a century.
Key Characteristics：
| Feature | Description |
|---|---|
| High Purity | Cu ≥99.9% (C11000 / C12200) – excellent conductivity and corrosion resistance |
| Thermal Conductivity | ~390 W/(m·K) – ideal for heat exchangers, condensers, evaporators |
| Electrical Conductivity | ≥101% IACS – excellent for electrical applications |
| Corrosion Resistance | Natural oxide layer provides long-term protection in most environments |
| Excellent Formability | Readily bent, flared, expanded, and soldered/brazed |
| Antibacterial Properties | Copper surfaces naturally kill 99.9% of bacteria – ideal for plumbing |
| 100% Recyclable | Environmentally friendly with no loss of properties |
Copper Tube vs Other Materials：
| Factor | Copper Tube | Aluminum Tube | Steel Tube | Plastic Pipe |
|---|---|---|---|---|
| Thermal Conductivity | Excellent (390 W/m·K) | Good (230 W/m·K) | Poor (45 W/m·K) | Very poor |
| Corrosion Resistance | Excellent | Good | Poor (requires coating) | Excellent |
| Strength | Good | Moderate | High | Low |
| Bacterial Resistance | Excellent | Poor | Poor | Moderate |
| Recyclability | 100% | 100% | 100% | Limited |
| Service Life | 50+ years | 30+ years | 20+ years | 25+ years |
Key Grades：
| Grade | UNS | Purity | Key Features | Best For |
|---|---|---|---|---|
| C11000 (ETP) | C11000 | ≥99.9% | Highest conductivity, electrolytic tough pitch | Electrical, general purpose |
| C12200 (DHP) | C12200 | ≥99.9% | Phosphorus deoxidized, excellent weldability | HVAC, plumbing, gas lines |
| Cu-DHP | C12200 | ≥99.9% | European equivalent to C12200 | EN 1057 applications |
Typical Applications by Industry：
| Industry | Applications | Recommended Grade / Temper |
|---|---|---|
| HVAC & Refrigeration | Refrigerant lines, condenser coils, evaporator coils, heat pumps | C12200, soft (pancake coil) |
| Plumbing & Water Supply | Hot/cold water lines, heating systems, solar water heaters | C12200, hard or half-hard |
| Gas Distribution | Natural gas, LPG, propane lines | C12200, hard |
| Heat Exchangers | Shell and tube, oil coolers, condensers, evaporators | C11000, C12200 |
| Automotive | Brake lines, fuel lines, hydraulic lines | C12200 |
| Marine | Seawater piping, condensers | C12200, CuNi alloys |
| Instrumentation | Pneumatic lines, control lines, capillary tubing | C12200 |
| Electrical | Bus bars, transformer components | C11000 |
Key Specifications – Copper Tube / Pipe
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | ASTM B280 (ACR), ASTM B88 (plumbing), EN 1057, JIS H3300, GB/T 17791, AS/NZS 1571 | Others on request |
| Grades | C11000 (ETP), C12200 (DHP), Cu-DHP, Cu-ETP, T2, TP2 | Purity ≥99.9% |
| Product Type | Seamless (drawn) | All tubes are seamless |
| Outer Diameter (OD) | 3 mm – 219 mm | Custom on request |
| Wall Thickness | 0.3 mm – 10 mm | Depends on OD |
| Length – Straight | 3 m, 4 m, 5 m, 6 m, or custom | Up to 12m available |
| Length – Pancake Coil | 15 m – 50 m per coil | Soft temper |
| Length – Level Wound Coil | 100 m – 500 m per spool | Soft temper, automated feeding |
| Temper | Soft (annealed), half-hard, hard (drawn) | See Screen 6 |
| Surface | Bright annealed, clean, oil-free | Tinning available |
| Density | 8.94 g/cm³ (C11000/C12200) | – |
| Thermal Conductivity | ~390 W/(m·K) (C11000) | – |
| Electrical Conductivity | ≥101% IACS (C11000) | – |
| Melting Point | 1083°C | – |
| Modulus of Elasticity | 115 GPa | – |
| Testing | Eddy current (100%), hydrostatic, tensile, hardness, flattening, flaring | Mill cert EN 10204 3.1 |
| Packaging | End capped, bundled, wooden case / pallet, plastic wrapped | Seaworthy, ISPM 15 |
Wuxi Yansheng Technology Co., Ltd. – Company Profile
Wuxi Yansheng Technology Co., Ltd. is a comprehensive technology enterprise specializing in high-quality metal raw material supply and precision processing services. Located in Wuxi City, a major steel distribution center in China, the company leverages the mature industrial chain advantages of the Yangtze River Delta region to provide professional material solutions to global customers.
As a technology-driven enterprise, Yansheng Tech maintains strategic cooperation with several well-known steel mills (such as TISCO, Baosteel, JISCO, Dongfang Special Steel, etc.) and is an authorized distributor of these mills. Our main products include stainless steel (304/316/BA/EP pipe), carbon steel, silicon steel, copper, aluminum and other materials in the form of sheets, pipes, coils, as well as custom-processed parts.
Core Business Highlights:
Material Supply: We maintain sufficient stock inventory, offering 304/316 stainless steel sheets, pipes, coils, API 5L casing, electrical steel, and more. We also accept orders for special steel grades and non-standard specifications.
Precision Processing: Equipped with imported mirror polishing machines, water jet cutting machines, high-precision slitting/leveling lines, large CNC milling machines, boring machines, and more. We provide customized services including BA/EP pipe finishing, medium plate polishing, matte finishing, embossing, plasma cutting, etc.
Main Applications: Our products are widely used in industries such as solar energy, pressure vessels, boilers, electric heating equipment, petrochemicals, environmental protection machinery, pharmaceutical and food processing, and new energy vehicles.
Our processing center is located in Xishan District, Wuxi City, covering nearly 10,000 square meters, with an experienced technical and service team. We adhere to the business philosophy of "Technology First, Quality Oriented, Service Supreme" , providing 24/7 warehousing and logistics support as well as comprehensive after-sales service. Yansheng Tech is committed to being your trusted long-term partner.
Frequently Asked Questions (FAQ)
Q1. What products do you mainly supply?
We mainly supply stainless steel (304/316/BA/EP pipes), carbon steel, silicon steel, copper, aluminum, and other materials in sheets, pipes, and coils. Customized processing services are also available.
Q2. Do you have stock available?
Yes, we maintain sufficient stock for most standard specifications. For non-standard sizes, we can accept orders with reasonable lead time.
Q3. Can you provide MTC (Mill Test Certificate)?
Yes, we provide MTC for every shipment. Third-party inspection (SGS, TÜV, BV, etc.) is also available upon request.
Q4. Do you support video inspection before shipment?
Yes, we fully support video inspection. You can also arrange an agent or third party to visit our factory for on-site inspection before shipment.
Q5. What are your main export markets?
We export to Southeast Asia, the Middle East, Europe, Africa, and South America. We have rich experience in international trade and export documentation.
Q6. What payment terms do you accept?
We accept T/T (wire transfer), L/C at sight (irrevocable), and sometimes a combination of T/T deposit + L/C balance. Payment terms are negotiable based on order size and customer history.
Q7. Can you provide samples?
Yes, samples are available for most standard products. For custom sizes, we may need to produce small batch samples. Sample cost and shipping are usually borne by the customer, but can be discussed.
Q8. What is your typical lead time?
For stock items: 7–10 days after order confirmation. For custom production: 20–30 days, depending on the specification and quantity.
Q9. What quality certifications do you have?
We provide MTC with every shipment. Our partner mills are ISO9001 certified. We can also assist with third-party inspections (SGS, TÜV, BV) upon request.
Q10. How can I get a quotation?
Please send us your material grade, specification (size, thickness, length), quantity, and preferred trade term (FOB, CIF, DAP, etc.). We will reply with a detailed quotation within 24 hours.
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