What is C11000 copper?
C11000 is a high-purity electrolytic tough-pitch copper, classified according to the Uniform Numbering System (UNS) of the United States. This copper alloy is widely used in various fields due to its high purity and excellent electrical and thermal conductivity. C11000 copper contains at least 99.90% copper and is one of the most widely used coppers in industry, especially in applications requiring high conductivity and good machinability.
What is the copper equivalent of C11000?
| Stamdard | IS | ASTM | BS | JIS | DIN | EN | ISO |
|---|---|---|---|---|---|---|---|
| Electrolytic Tough Pitch | IS 6912 - ETP S191 - CuETP |
C11000 | C101 | H3250(92) - C1100 BE | 2.006 | CW004A | R1337 - Cu |
| Specifications | Designation |
|---|---|
| Europen | Cu-ETP |
| BS | Cu-ETP-2 |
| JIS | C-1100 |
| ISO | Cu-ETP |
| Russian | MO |
UNS C11000 Copper, ASTM B152/B187
High Electrical Conductivity: C11000 Copper has an electrical conductivity of approximately 101% IACS, making it ideal for electrical applications.
Excellent Corrosion Resistance: C11000 resists corrosion in a variety of environments, increasing its lifespan.
Superior Formability and Malleability: Easy to shape, machine, and weld, allowing versatile use in industrial applications.
High Thermal Conductivity: Ensures efficient heat dissipation, critical for applications like heat exchangers and electrical contacts.
Product Specifications for C11000 Electrolytic Tough Pitch Copper (Cu-ETP)
| Product Type | Standard | Available Sizes | Typical Applications |
|---|---|---|---|
| Sheets and Plates | ASTM B152 | Thickness: 0.5mm–50mm, Width: up to 1500mm, Length: up to 3000mm | Electrical equipment, roofing, cladding |
| Pipes and Tubes | ASTM B42, B188 | Diameter: 6mm–500mm, Length: up to 6m | Plumbing, HVAC, industrial piping |
| Bars and Rods | ASTM B187 | Diameter: 3mm–200mm | Electrical components, fasteners |
| Angles and Channels | ASTM B152 | Custom sizes available | Structural supports, electrical frames |
| Beams | ASTM B152 | Custom configurations available | Construction, electrical supports |
| Fittings | ASTM B16, B61 | Standard and custom sizes | Connectors, industrial installations |




C11000 ETP Copper Physical Properties
| Melting Point – Liquidus ⁰F | 1981 | |
| Melting Point – Solidus ⁰F | 1949 | |
| Density lb/cu in. at 68⁰F | 0.322(1) | |
| Specific Gravity | 8.91 | |
| Electrical Conductivity % IACS at 68⁰F | 101(2) | |
| Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F | 226 | |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-212 ⁰F) | 9.4 | |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-392 ⁰F) | 9.6 | |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) | 9.8 | |
| Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F | 0.092 | |
| Modulus of Elasticity in Tension ksi | 17000 | |
| Modulus of Rigidity ksi | 6400 |
C11000 ETP Copper Fabrication Properties
| Alloy | Joining Technique | Suitability Level |
| C11000 | Soldering | Excellent |
| Brazing | Good | |
| Oxyacetylene Welding | Not Recommended | |
| Gas Shielded Arc Welding | Fair | |
| Coated Metal Arc Welding | Not Recommended | |
| Spot Weld | Not Recommended | |
| Seam Weld | Not Recommended | |
| Butt Weld | Good | |
| Capacity for Being Cold Worked | Excellent | |
| Capacity for Being Hot Formed | Excellent | |
| Forgeability Rating | 65 | |
| Machinability Rating | 20 | |
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 |
| C11000 Copper Angles & Channels | $9.0 – $10.5 |
| C11000 Copper Beams | $10.0 – $12.0 |
C11000 ETP Copper vs other grades
| Property / Alloy | C11000 (ETP Copper) | C10100 (Oxygen-Free Copper) | C12200 (Phosphorus Deoxidized Copper) | C26000 (Cartridge Brass) |
|---|---|---|---|---|
| Common Name | Electrolytic Tough Pitch Copper | Oxygen-Free Copper (OFC) | Phosphorus Deoxidized Copper (DHP) | Cartridge Brass (70/30) |
| Copper Content (%) | ≥99.90% | ≥99.99% | ≥99.9% (with P addition) | ~70% Cu, ~30% Zn |
| Oxygen Content | ~0.02%-0.04% | ≤0.0005% | ≤0.015% (P deoxidized) | N/A |
| Key Characteristics | High conductivity, good formability, widely available | Excellent conductivity, resistant to hydrogen embrittlement | Good weldability, brazability, and hot workability | High strength, good cold workability, corrosion resistant |
| Electrical Conductivity (% IACS) | 101% | 102% | ~85-90% | ~28% |
| Typical Applications | Electrical wires, busbars, transformers | High-frequency conductors, vacuum tubes, aerospace electronics | Plumbing tubes, heat exchangers, HVAC systems | Cartridge cases, connectors, springs, decorative parts |
| Formability | Excellent | Excellent | Good (especially hot working) | Excellent (cold working) |
| Corrosion Resistance | Good | Excellent | Good | Good (in non-marine environments) |
| Relative Cost | Low | High | Moderate | Moderate |
FAQs of C11000 Copper Tube
Q: How can customers request samples of C11000 copper tubing?
A: Customers can easily request samples by emailing sales@gneemetal.com. With our ample inventory, samples are usually shipped promptly to ensure customers can quickly evaluate them before bulk purchases.
Q: What warranty services are offered for C11000 copper tubing?
A: C11000 copper tubing comes with a 1-year warranty, ensuring your project is worry-free and performs reliably.
Q: When is the expected shipment time after ordering C11000 copper tubing?
A: After order confirmation, we will quickly arrange shipment in major domestic markets. We are committed to ensuring products reach all regions as quickly as possible.
Q: In which fields is C11000 copper tubing widely used?
A: Due to its excellent adaptability and high quality, this copper tubing is widely used in piping installation, HVAC systems, and various industrial fluid transportation.
Q: What is the process for bulk purchases or wholesale inquiries?
A: For bulk or wholesale orders, customers can contact us directly. We offer highly competitive prices, an efficient order processing flow, and customized support for export, import, and domestic needs.
Q: How does surface treatment improve product performance?
A: Polished surfaces enhance corrosion resistance, give products an attractive appearance, and ensure smooth fluid flow, making them the best choice for harsh environments.
Product Forms We Can Provide
| Product Category | Material Standards | Common Alloys | Key Specifications (Can be Customized) |
|---|---|---|---|
| Copper Tubes | ASTM B75, B88, B280,B111; EN 12449, 12451; DIN EN 12735; JIS H3300 | C10100 (OFE), C11000 (ETP), C12200 (DHP), C23000, C70600,C71500 | OD: 3mm - 300mm Wall Thickness: 0.5mm - 20mm Temper: Soft (O), Half-Hard (H50), Hard (H80) Form: Straight Lengths, Coils, U-Bends |
| Copper Sheets / Plates | ASTM B152, B248, B248M; EN 1652; DIN 1787; JIS H3100, H3250 | C10100 (OFE), C11000, C10200 (OF), C26000, C86200 | Thickness: 0.3mm - 100mm Width: Up to 1200mm Length: Up to 3000mm (or coils) Surface: Mill, Polished, Brushed |
| Copper Rods / Bars | ASTM B187, B301, B411; EN 12163, 12164; DIN 17672; JIS H3250 | C10100 (OFE), C11000, C14500, C36000, C63000 | Diameter/Rect. Size: 3mm - 300mm Shape: Round, Square, Hexagonal, Rectangular Condition: Drawn, Extruded, Hot Rolled |
| Copper Wires | ASTM B1, B2, B3, B258; EN 13601; IEC 60228; JIS H3100 | C10100 (OFE), C11000, C14420, C14500 | Diameter: 0.1mm - 20mm Temper: Soft, Annealed, Hard-Drawn Form: Bare, Tinned, Stranded, on Spools |
| Copper Foils / Strips | ASTM B103, B370; EN 1652; DIN 1787; JIS H3100 | C10100 (OFE), C10200, C11000, C19400, C26800 | Thickness: 0.02mm - 2.0mm Width: Up to 600mm Temper: Rolled, Annealed |
| CNC Machining Parts | As per Customer Drawing/Req. | All Common Copper Alloys (including C10100, C11000, C86200, etc.) | Process: Turning, Milling, Drilling, Tapping Tolerance: ±0.005mm - ±0.1mm Post-Processing: Deburring, Polishing, Plating |
Our factory




Our manufacturing facility operates a comprehensive and modern production line, equipped with advanced continuous casting, precision rolling, high-speed drawing, and multi-axis CNC machining centers, enabling us to process copper and copper alloys (such as C10100, C11000, C12200, C71500,C70600 etc.) into a full range of products including tubes, sheets, rods, wires, and foils. To ensure top-tier quality, we have implemented a rigorous in-process and final inspection system, utilizing state-of-the-art equipment such as spectrometers for material verification, digital tensile testers for mechanical property checks, precision dimensional gauges, and eddy current or ultrasonic testers for defect detection, guaranteeing that every product meets or exceeds international standards such as ASTM, EN, and JIS, as well as specific customer requirements.
Product packaging and delivery time

We provide engineering-grade protective packaging for each and every product. Whether it's heavy copper tubes and plates, or precision rods, wires, and ultra-thin foils, we employ multi-layer composite protection: the inner layer uses scratch-resistant PE film and custom padding for physical isolation and cushioning; the middle layer is treated with moisture-proof sealing and includes desiccants; the outer layer utilizes reinforced wooden crates or high-strength waterproof wrapping film, depending on the shape and weight, for stabilization and protection. This ensures that the products withstand moisture, oxidation, and impact during long-distance sea or land transportation, arriving in perfect condition at your site. In terms of delivery, we commit to efficiency and reliability: standard specification products can be prepared and shipped within 7-15 working days, while customized products will also enter production scheduling promptly. We maintain full transparency throughout the process, allowing you to precisely control timelines and ensure your project proceeds as planned.





