Rupal Metals is a prominent manufacturer and supplier located in Delhi, India, specializing in high-purity Copper C10300 Bars and Rods. These products are designed for outstanding thermal and electrical conductivity. Known as Oxygen-Free Electronic (OFE) Copper, C10300 is crafted in a controlled environment to ensure top-notch electrical conductivity and corrosion resistance. At Rupal Metals, we prioritize precision in manufacturing, delivering excellent surface finishes and precise dimensions in every item. Our C10300 copper bars and rods find extensive use in electrical, electronics, aerospace, and vacuum technology applications, where purity, conductivity, and reliability are essential for optimal performance.
Copper C10300 (OFE Copper) boasts a minimum purity of 99.99% and is nearly oxygen-free, with an oxygen content below 0.0005%. This ultra-high purity copper provides exceptional electrical conductivity (up to 101% IACS) and remarkable thermal conductivity. It typically has a tensile strength ranging from 220 to 370 MPa and a yield strength between 50 and 250 MPa, depending on the temper. C10300 also showcases excellent ductility, workability, and corrosion resistance, making it perfect for ultra-clean environments like vacuum tubes, semiconductors, and cryogenic applications, thanks to its superior conductivity and purity.
| 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 | C10300 |
| Treatment | Maximum* | Minimum* |
|---|---|---|
| * Temperature is measured in Fahrenheit. | ||
| Hot Working Temperature | 1600 | 1400 |
| Annealing | 1200 | 700 |
| Alloy Designation | |
|---|---|
| DIN CEN/TS 13388 | CW021A |
| EN | Cu-HCP |
| UNS | C10300 |
| Typical values in annealed temper at 20 °C | |||
|---|---|---|---|
| Thermal expansion coefficient | 20 .. 300 °C | 16.9 | 10-6/K |
| Density | 8.92 g/cm³ | ||
| Thermal conductivity | 385 | W/(m·K) | |
| Modulus of elasticity | GPa | 130 | GPa |
| Specific heat capacity | 0.385 J/(g·K) | ||
| Electrical conductivity | IACS | 98 % | |
| Electrical conductivity | MS/m | 57 | MS/m |
| Thermal coefficient of electrical resistance | (0 .. 100 °C) | 3.7 | 10-3/K |
| Mechanical Properties (EN 1652) | ||||||
| Tensile Strength Rm | Hardness HV * | Temper | Yield Strength Minimum Rp0.2 | Elongation Minimum A50mm | Bending 90° gw bw rel. Bending Radius R/T | |
|---|---|---|---|---|---|---|
| MPa | HV | MPa % | Strip Thickness ≤ 0.50mm | |||
| ≥ 360 | ≥ 110 | R360 | 320 | 2 | 0 | 0.5 |
| 240 .. 300 | 65 .. 95 | R240 | 180 | 8 | 0 | 0 |
| 220 .. 260 | 40 .. 65 | R220 | ≤ 140 * | 33 | 0 | 0 |
| 290 .. 360 | 90 .. 110 | R290 | 250 | 4 | 0 | 0 |
To select the right Copper C10300 Bars and Rods, consider factors such as conductivity, corrosion resistance, strength requirements, and the specific environmental conditions of your application.
Yes, Copper C10300 Bars and Rods are fully recyclable, retaining their properties even after recycling, making them an eco-friendly option for sustainable industrial applications.
Yes, Copper C10300 Bars and Rods can be used for potable water applications due to their corrosion resistance, antimicrobial properties, and compliance with drinking water standards.
Copper C10300 Bars and Rods are widely utilized in high-precision electrical and thermal applications due to their unparalleled conductivity and purity. They are commonly found in electrical conductors, vacuum seals, semiconductor components, RF and microwave devices, aerospace electrical systems, cryogenics, and high-voltage engineering. The oxygen-free characteristic of C10300 makes it ideal for brazing and welding, eliminating the risk of hydrogen embrittlement.






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