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| Property | Value |
|---|---|
| UNS Number | C10100 |
| ASTM Standard | ASTM B170 / F468 |
| Copper Content | 99.99% min (OFE) |
| Tensile Strength | 221 MPa (min) |
| Density | 8.94 g/cm³ |
| Max Service Temp | 200°C |
| Element | Composition (%) |
|---|---|
| Cu | ≥99.99% |
| O | ≤0.0005% |
| Ag | ≤0.0025% |
| Bi | ≤0.0005% |
| Pb | ≤0.0005% |
Copper C10100, known as Oxygen-Free Electronic (OFE) copper, is refined to a minimum purity of 99.99%, virtually eliminating oxygen and impurity content. This ultra-high purity minimizes the presence of cuprous oxide inclusions that can otherwise cause embrittlement and hydrogen cracking during welding or high-temperature exposure. The absence of deoxidizers such as phosphorus ensures maximum electrical and thermal conductivity while preserving excellent ductility and grain structure integrity.
These characteristics make C10100 fasteners exceptionally reliable for applications requiring superior conductivity, corrosion resistance and mechanical stability. The material resists oxidation and atmospheric corrosion effectively, maintains performance under thermal cycling, and exhibits excellent cold-forming properties. Its high purity ensures consistent mechanical behavior, making it ideal for electrical connectors, busbar assemblies, vacuum systems and precision fastener applications demanding both conductivity and structural dependability.
Specifications
Copper C10100 (OFE) Fasteners are high-purity oxygen-free electronic copper components defined by precise dimensional specifications, mechanical properties, and supporting technical data. Their specification profile emphasizes excellent conductivity, formability, and reliable fit across threaded and non-threaded fastening applications, with compliance aligned to applicable copper product standards.
| Property | Value |
|---|---|
| Tensile Strength | 221–250 MPa |
| Yield Strength | 69 MPa (min) |
| Elongation | 45% min |
| Hardness | 40–50 HRF |
| Modulus of Elasticity | 117 GPa |
| Thermal Conductivity | 391 W/m·K |
| Density | 8.94 g/cm³ |
| Melting Range | 1065–1083°C |
| Max Service Temp | 200°C |
| Standard | Details |
|---|---|
| Bolt Standard | ASME B18.2.1 / DIN 931 |
| Stud Bolt Standard | ASTM F468 |
| Nut Standard | ASME B18.2.2 / DIN 934 |
| Washer Standard | ASME B18.22.1 / DIN 125 |
| Thread Form | UNC, UNF, Metric |
| Diameter Range | M3 – M64 / #4 – 2.5" |
| Length Range | 10mm – 300mm |
| Product Forms | Bolts, Studs, Nuts, Washers |
| Custom Sizes | Available on request |
Applications
