Oxygen-Free Electronic Copper (OFE)
Overview
C10100 is the highest-purity commercially available copper at 99.99% Cu. It offers maximum electrical and thermal conductivity with freedom from hydrogen embrittlement, making it essential for high-vacuum electronics and superconductor applications.
As a C10100 oxygen-free electronic copper (ofe)supplier, Triton Bronze & Metals stocks copper in round bar, flat bar, sheet, and more — all cut to length and shipped from US mills. Certified mill test reports available to meet your quality requirements.
Chemical Composition — C10100
| Element | Content |
|---|---|
| Copper (Cu) | 99.99% min |
| Oxygen (O) | 0.0005% max |
Mechanical Properties
Physical Properties
| Property | Value |
|---|---|
| Density | 0.323 lb/in³ (8.94 g/cm³) |
| Melting Range | 1949-1981°F (1065-1083°C) |
| Modulus of Elasticity | 17,000 ksi (117 GPa) |
| Thermal Conductivity | 226 BTU/ft·hr·°F (391 W/m·K) |
| Coefficient of Thermal Expansion | 9.4 × 10⁻⁶ /°F (16.9 × 10⁻⁶ /°C) |
| Electrical Conductivity | 101% IACS |
Applicable Specifications
- ✓ASTM B170 (OFE Copper)
- ✓ASTM B187 (Bus Bar)
- ✓ASTM B152 (Sheet/Plate)
- ✓MIL-C-19311 (Class 1)
- ✓Federal QQ-C-576
Fabrication & Joining
| Process | Rating |
|---|---|
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Good |
Common Applications
- •Waveguides
- •Superconductor matrices
- •Vacuum tube components
- •High-conductivity bus bars
- •Cryogenic applications
- •Semiconductor equipment
Frequently Asked Questions
What forms is C10100 Oxygen-Free Electronic Copper (OFE) available in?+
We supply C10100 in Round Bar, Flat Bar, Sheet, Plate, Tube. All material is sourced from US mills, cut to length, and shipped directly to your facility.
What are the typical applications for C10100?+
C10100 is commonly used for waveguides, superconductor matrices, vacuum tube components, high-conductivity bus bars. Contact us for application-specific recommendations.
Can I get a mill test report for C10100?+
Yes. Mill test reports (MTRs) are available upon request for all C10100 orders. We can also provide material certifications to meet your quality requirements.
Dimensional Tolerances
For standard finishing allowances, diameter tolerances, and concentricity data for continuous cast copper products, see our tolerance reference.
View Tolerances & Finishing Allowances →Need Finished Parts?
Need C10100 machined to spec? We offer custom machined parts, bronze bushings, bearings, and wear components in any alloy we stock.
View Finished Parts & Components →Available Forms
- Round Bar
- Flat Bar
- Sheet
- Plate
- Tube
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