What is C10100 OFHC Copper?
C10100 is high-purity oxygen-free electronic copper, commonly called OFHC copper, OFE copper, oxygen-free copper, or C101 copper. It is specified for applications that need very high electrical conductivity, high thermal conductivity, and extremely low oxygen content.
Compared with C11000 ETP copper, C10100 is used when oxygen content and purity matter, such as electronic, high-vacuum, specialty conductive, and high-performance thermal applications. Mechanical properties still depend on product form and temper.
Common Names and Cross References
| Name or designation | How it is commonly used |
|---|---|
| C10100 | UNS alloy designation |
| OFHC Copper | Oxygen-free high-conductivity copper |
| OFE Copper | Oxygen-free electronic copper |
| C101 Copper | Common stock and purchasing name |
Chemical Composition (%)
| Element | Minimum | Maximum | Nominal |
|---|---|---|---|
| Copper (Cu) | 99.99 | - | - |
| Oxygen (O) | - | 0.0005 | - |
| Lead (Pb) | - | 0.0005 | - |
| Iron (Fe) | - | 0.0010 | - |
| Phosphorus (P) | - | 0.0003 | - |
| Silver (Ag) | - | 0.0025 | - |
| Zinc (Zn) | - | 0.0001 | - |
Mechanical, Electrical, and Physical Properties
Properties vary by temper and form. The examples below reflect common C10100 datasheet values.
| Property | Typical published value |
|---|---|
| Electrical conductivity | 101% IACS, annealed |
| Thermal conductivity | About 226 Btu-ft/(hr-ft2-F) |
| Tensile strength | 32,000-55,000 psi, depending on temper |
| Yield strength | 10,000-50,000 psi, depending on temper |
| Elongation | 6-50%, depending on temper |
| Machinability rating | 20, based on free-cutting brass = 100 |
| Forgeability rating | 65 |
Fabrication Suitability
| Operation | Suitability |
|---|---|
| Cold working | Excellent |
| Hot forming | Excellent |
| Machining | Fair to poor |
| Soldering | Excellent |
| Brazing | Good |
| Welding | Process-dependent; confirm for the exact application |
Typical Applications for C10100
- High-conductivity electrical and electronic components.
- Vacuum and high-purity copper components.
- Thermal management parts and heat transfer components.
- Conductive bars, plates, rods, and machined copper parts.
- Applications where oxygen content must be tightly controlled.
RFQ Details for C10100 Parts
Send the C10100 or OFHC callout, ASTM form or temper, conductivity or purity requirement, dimensions, quantity, surface finish, and drawings. If standard high-conductivity copper is acceptable, compare with C11000 ETP copper.
Available Forms
Available Forms and Shapes
Review common product forms for C10100 OFHC Copper, then send drawings, dimensions, quantity, and finished-part requirements for material and production guidance.
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