Chung Metal in Da Nang, Vietnam produces and provides top-quality Copper C10200 Bars and Rods, otherwise referred to as Oxygen-Free Electronic (OFE) Copper. This is a high-purity copper grade refined to contain very low oxygen content, having excellent electrical and thermal conductivity, high ductility, and better resistance against hydrogen embrittlement. Our C10200 products are manufactured with precise dimensional accuracy and excellent surface finish, making them suitable for premium electrical, electronic, and vacuum applications. Chung Metal works each bar and rod to exacting standards of quality, making them fit for demanding industrial, scientific, and aeronautic applications.
Copper C10200 generally consists of ≥99.95% pure copper with ≤0.001% oxygen. It offers electrical conductivity of approximately 101% IACS and thermal conductivity around 390–400 W/m·K. In the soft (annealed) condition, tensile strength is 215–260 MPa, yield strength is 65–100 MPa, and elongation is 45–60%. It features excellent ductility, formability, and solderability. C10200 is non-magnetic, has high corrosion resistance, and is free from hydrogen embrittlement, making it ideal for applications in reducing atmospheres or high-vacuum environments.
| Specifications | ASTM B187, ASTM B301 / ASME SB187, SB301 |
| Range | 3.17 MM TO 350 MM DIA |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc. |
| Copper Grades | C10200 |
| Melting Point – Solidus ⁰F | 1981 |
| Melting Point – Liquidus ⁰F | 1981 |
| Density lb/cu in. at 68⁰F | 0.323 |
| Electrical Conductivity % IACS at 68⁰F | 101 |
| Specific Gravity | 8.94 |
| Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F | 0.092 |
| Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F | 226 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-392 ⁰F) | 9.6 |
| Modulus of Rigidity ksi | 6400 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-212 ⁰F) | 9.4 |
| Modulus of Elasticity in Tension ksi | 17000 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) | 9.8 |
| Standards | Country | Value |
|---|---|---|
| EN | Europe | Cu-OF |
| DIN CEN/TS 13388 | Germany | CW008A |
| UNS | – | C10200 |
| JIS | Japan | C1020 |
| GB | China | TU1 |
| BS | England | C102 |
| Thermal Properties | Metric | English |
|---|---|---|
| Annealing Point | >= 371 °C | >= 700 °F |
| CTE, linear | 17.0 µm/m-°C @Temperature 20.0 – 100 °C | 9.44 µin/in-°F @Temperature 68.0 – 212 °F |
| 17.7 µm/m-°C @Temperature 20.0 – 300 °C | 9.83 µin/in-°F @Temperature 68.0 – 572 °F | |
| 17.3 µm/m-°C @Temperature 20.0 – 200 °C | 9.61 µin/in-°F @Temperature 68.0 – 392 °F | |
| Thermal Conductivity | 391 W/m-K @Temperature 20.0 °C | 2710 BTU-in/hr-ft²-°F @Temperature 68.0 °F |
| Melting Point | 1083 °C | 1981 °F |
| Specific Heat Capacity | 0.385 J/g-°C @Temperature 20.0 °C | 0.0920 BTU/lb-°F @Temperature 68.0 °F |
| Property/unit | Condition | Min | Max |
|---|---|---|---|
| Tensile Strength (N/mm2) | 1/2H | 290 | |
| Elongation in 5.65 Cross sectional area | O | 32 | |
| Tensile Strength (N/mm2) | H | 350 | |
| Tensile Strength (N/mm2) | O | 260 | |
| Elongation in 5.65Cross sectional area | 1/2H | 4 |
Yes, Copper C10200 Bars and Rods are fully recyclable. Copper retains its properties after recycling, making it an environmentally friendly and sustainable material for repeated use in various industries.
Copper C10200 Bars and Rods generally do not require corrosion protection coatings as copper naturally resists corrosion. However, in certain aggressive environments, protective coatings may be used to enhance durability.
Yes, Copper C10200 Bars and Rods can be welded using techniques like TIG and MIG welding. Their high conductivity and low oxygen content ensure strong and reliable welds for various applications.
C10200 Copper Bars and Rods are commonly utilized in high-purity electrical conductors, semiconductor processing, high-frequency connectors, microwave and RF equipment, and cryogenic and ultra-high vacuum equipment. Its extremely low oxygen level qualifies it for use in vacuum electronics, high-voltage switchgear, bus bars, and waveguides where trace gas evolution or contamination is unacceptable. The alloy finds applications in audio equipment, medical equipment, and in aerospace electrical systems where performance, purity, and reliability are not negotiable. Its machinability and weldability also increase its versatility in precision-engineered electrical and thermal systems.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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