What is C11000 ETP Copper?
C11000 ETP copper is electrolytic tough pitch copper, the standard high-conductivity commercial copper used for electrical, thermal, architectural, and industrial components. It is commonly called C110 copper, ETP copper, or electrolytic tough pitch copper.
C11000 is selected when electrical conductivity and thermal conductivity matter more than strength. Mechanical properties vary by product form and temper, so engineering review should use the exact ASTM product form and temper specified on the drawing.
Common Names and Cross References
| Name or designation | How it is commonly used |
|---|---|
| C11000 | UNS alloy designation |
| C110 Copper | Common stock and purchasing name |
| ETP Copper | Electrolytic tough pitch copper |
| Cu-ETP | International copper designation |
Chemical Composition (%)
| Element | Minimum | Maximum | Nominal |
|---|---|---|---|
| Copper, including silver | 99.90 | - | - |
| Oxygen | 0.02 | 0.04 | - |
Mechanical, Electrical, and Physical Properties
C11000 properties vary by temper and form. The values below reflect common datasheet ranges.
| Property | Typical published value |
|---|---|
| Electrical conductivity | 100% IACS minimum, annealed |
| Tensile strength | About 32,000-66,000 psi, depending on temper |
| Yield strength | About 10,000-53,000 psi, depending on temper |
| Elongation | About 4-50%, depending on temper |
| Machinability rating | About 20, based on free-cutting brass = 100 |
Fabrication Suitability
| Operation | Suitability |
|---|---|
| Cold working | Excellent |
| Hot working | Excellent |
| Machining | Fair to poor |
| Soldering | Excellent |
| Brazing | Good |
| Welding | Process-dependent; confirm with the drawing and service conditions |
Typical Applications for C11000
- Bus bars, electrical connectors, terminals, and conductive parts.
- Heat transfer components and thermal management parts.
- Architectural copper components.
- Telecommunications and grounding components.
- Machined copper parts where high conductivity is required.
RFQ Details for C11000 Parts
Send the C11000 callout, ASTM form or temper, conductivity requirement, dimensions, quantity, finish requirements, and drawings. If oxygen-free copper is required for high-vacuum or electronic service, compare with C10100 OFHC copper.
Available Forms
Available Forms and Shapes
Review common product forms for C11000 ETP Copper, then send drawings, dimensions, quantity, and finished-part requirements for material and production guidance.
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