C11000 Cu ETP Copper
Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of c11000 cu etp copper in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount c11000 cu etp copper for sale here from our factory. Customized orders are welcome.
What is C11000 ETP copper?
The most common variety of copper available on the market, electrolytic tough pitch (ETP) copper - commercially designated as C11000 (UNS), CW004A (EN), and T2 (GB China) - is highly conductive, making it an ideal material for delivering electrical current for a wide range of applications. This commercially pure copper (minimum 99.9% Cu) is supplied in various tempers to meet specific mechanical requirements, commonly identified as Cu-ETP R200 (Annealed), C11000 H02 / Cu-ETP R240 (Half-Hard), and Cu-ETP R250 (Hard) per international standards.
Properties of ETP Copper (C11000 Copper)
ETP copper may be found in most electrical systems. The material's useful properties make it well-suited for both electrical and industrial use. C11000 copper's unique qualities include:
Workability and formability. ETP copper is highly workable at both hot and cold temperatures, with a Vickers hardness (HV) range of 45 to 155.
Solderability. ETP copper is highly solderable, which makes it ideal for building circuitry and other electrical components.
Conductivity. In addition to offering high thermal conductivity, ETP copper possesses electrical conductivity of up to 101% IACS.
Corrosion resistance. Like most copper materials, ETP copper is highly resistant to corrosion.
Compatibility with heat treatments. ETP copper may be heat-treated or annealed to improve its resistance to stress.
Recyclability. The material is also a sustainable option as it's recyclable.
Available Forms of C11000 Copper
Standards: ASTM B75, ASTM B88, ASTM B280
Common Specs: O.D. 3mm ~ 100mm+, Wall Thickness 0.5mm ~ 3mm, Coils or Straight Lengths
Typical Applications: Refrigeration & AC Systems, Water Plumbing, Hydraulic Lines, Heat Exchangers
Standards: ASTM B152, ASTM B248M
Common Specs: Thickness 0.5mm ~ 50mm, Width up to 2000mm
Typical Applications: Architectural Roofing, Busbars, Cookware, Fabricated Tanks
Standards: ASTM B187, ASTM B124
Common Specs: Diameter 3mm ~ 100mm+, Round, Square, Hexagonal Shapes
Typical Applications: Machined Parts (Busbars, Connectors), Fasteners, Forgings
Standards: ASTM B152, ASTM B124
Common Specs: Thickness 0.05mm ~ 3.0mm, Width up to 500mm, Supplied in Coils
Typical Applications: Electrical Contacts, Spring Contacts, RFI Shielding, Terminals
Standards: ASTM B1, ASTM B3
Common Specs: Diameter 0.05mm ~ 10mm, Annealed or Hard Drawn, supplied in Coils
Typical Applications: Electrical Wiring, Cables, Magnet Wire, Screw Machine Stock
Standards: Custom per drawing (Base Material: ASTM B187, B152)
Common Specs: CNC turning, milling & drilling. Custom dimensions per CAD/PDF prints with high-precision tolerances (up to ±0.01mm).
Typical Applications: Custom Electrical Connectors, Switchgear Components, High-Power Terminals, Heat Sinks, Welding Fixtures
Need Custom Sizes? Email Us Your Specifications
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Modulus of Elasticity | 110-130 GPa |
| Melting Point | 1083°C |
| Thermal Expansion | 16.5 µm/m-°C |
| Thermal Conductivity | 401 W/m-K |
| Electrical Resistivity | 1.724 x 10^-8 Ω·m |
Mechanical Properties of C11000 Copper
| Property | Value (Annealed) | Value (Half Hard) |
|---|---|---|
| Tensile Strength | 210 MPa | 250 MPa |
| Yield Strength | 69 MPa | 186 MPa |
| Elongation | 45% | 12% |
| Hardness (Brinell) | 50 HB | 80 HB |
Electrical Properties of C11000 Copper
| Electrical Property | Value |
|---|---|
| Electrical Conductivity | 101% IACS |
| Electrical Resistivity | 1.724 x 10^-8 Ω·m |
Thermal Properties of C11000 Copper
| Thermal Property | Value |
|---|---|
| Thermal Conductivity | 401 W/m-K |
| Specific Heat Capacity | 0.385 J/g-K |
| Thermal Expansion | 16.5 µm/m-°C |
Processing Properties of C11000 Copper
| Process | Suitability |
|---|---|
| Machining | Excellent |
| Welding | Good |
| Forming | Excellent |
| Annealing | Suitable |
Component Elements Properties of C11000 Copper
| Element | Percentage (%) |
|---|---|
| Copper (Cu) | 99.9% minimum |
| Oxygen (O) | 0.02-0.04% |
C11000 Electrolytic Copper Applications
As the most common copper material, the list of applications for ETP copper is far too long to list here. However, here are some examples of common use cases for this type of copper:
Busbars. ETP copper busbars are used for power distribution in electrical installations.
Motor windings. ETP copper is used for coils in motor windings to enhance electrical efficiency.
Transformer windings. This copper variety is highly valued for use in foil-wound transformers within electrical transmissions and panels as it's less susceptible to metal fatigue than other metals.
Welding fixtures. ETP copper is often used in welding fixtures due to its excellent thermal conductivity.
Anodes. ETP copper anodes are valued for their high conductivity and are used in a range of electrical arrays.
Grounding straps. The metal is an excellent option for grounding straps on a variety of equipment due to its high electrical conductivity.
Commutators. These ETP copper components ensure smooth directional flow within a motor or generator.
Additional electrical components. In addition to the items above, ETP copper may also be involved in the manufacture of the following: electrical conductors, contacts, switch parts, terminals, shielding tapes, and cable wraps.
Industrial products. Finally, ETP copper is good for industrial products like punched or stamped metal components, heat sinks, and chlorine battery caps.
Comparison: C11000 Copper vs. Other Copper Alloys
| Material | Electrical Conductivity | Corrosion Resistance | Applications |
|---|---|---|---|
| C11000 Copper | Very High (101% IACS) | Excellent | Electrical, industrial components |
| C12200 Copper (DHP) | High (97% IACS) | Excellent | Plumbing, HVAC, heat exchangers |
| C10200 Copper (Oxygen-Free) | Very High (101% IACS) | Superior | High-precision electronic components |
Price List for C11000 Copper (in USD per kg)
| Product Type | Price Range (USD/kg) |
|---|---|
| C11000 Copper Sheets & Plates | $8.0 – $9.5 |
| C11000 Copper Pipes & Tubes | $9.0 – $11.0 |
| C11000 Copper Bars & Rods | $8.5 – $10.0 |
Note: Copper prices fluctuate with the LME market. For today's exact C11000 copper plate price based on your quantity, please [Contact Us for a Fast Quote].
FAQ
1. Is C11000 copper the same as T2 or Cu-ETP?
Yes, they refer to the same material. C11000 is the American ASTM designation. T2 is the equivalent grade under the Chinese GB standard, and Cu-ETP (or CW004A) is the European EN standard. They all represent Electrolytic Tough Pitch copper with a minimum purity of 99.90%, offering exceptional electrical and thermal conductivity.
2. What is the electrical conductivity of C11000 copper?
C11000 ETP copper has an exceptionally high electrical conductivity rating of 100% to 101% IACS (International Annealed Copper Standard). Because of this outstanding performance, it is the universal baseline for conductivity and the most widely used copper alloy in the electrical industry for busbars, transformers, and wiring.
3. What is the difference between C11000 H02 and H04 tempers?
These designations refer to the hardness (temper) of the copper achieved through cold working:
H02 (Half Hard): Offers a great balance of moderate strength and formability. It is ideal for parts that require bending, forming, or stamping.
H04 (Hard / Full Hard): Provides maximum tensile strength and rigidity. It is typically used for flat busbars or structural components where the material needs to maintain its shape without bending.
4. Is C11000 copper easy to CNC machine?
C11000 has a machinability rating of 20% (compared to free-machining brass at 100%). While it is relatively soft and ductile, which can make it slightly "gummy" during cutting, it can be successfully CNC machined with the right tooling, sharp cutting edges, and proper coolants. For high-precision requirements, we offer custom C11000 CNC machined parts strictly according to your drawings.
5. Can you weld or braze C11000 ETP copper?
Soldering and brazing yield excellent results with C11000 copper. However, welding (like TIG or MIG) is generally not recommended. Because C11000 contains a small amount of oxygen, heating it to high welding temperatures in a hydrogen environment can cause "hydrogen embrittlement," leading to structural cracks. If your project requires extensive welding, we recommend Oxygen-Free Copper (such as C10200).
6. How is the C11000 copper price calculated?
The price of C11000 copper is not fixed; it fluctuates daily based on the LME (London Metal Exchange) copper commodity rates. The final cost of your order will depend on the current LME base price, the specific form you need (sheet, tube, wire, or custom CNC part), fabrication costs, and your order volume. For an accurate, up-to-date quote, please contact our sales team with your specifications.
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Founded in 2008, we are a premier supplier and distributor with extensive international trade expertise, specializing in high-quality C11000 ETP Copper. Leveraging advanced production facilities, we offer a comprehensive inventory-from C11000 thin-walled copper tubing and C11000 thick copper plate to precision C11000 copper strips, C11000 copper foil, C11000 copper rods, C11000 copper bus bars, and C11000 copper wires-providing versatile, globally-trusted solutions for all your conductive and industrial needs.
Contact us today for a quotation:sales@gneemetal.com

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