Oxygen-Free High Conductivity (OFHC) copper, primarily designated as C10100 (OFE) and C10200 (OF), is the gold standard for applications requiring high thermal and electrical conductivity. Unlike standard ETP (Electrolytic Tough Pitch) copper, OFHC is produced by melting electrolytic copper under vacuum or a non-oxidizing atmosphere, reducing oxygen levels to less than 0.001% (10 ppm).
As a leading OFHC copper exporter, Kepai New Material provides materials that achieve an electrical conductivity of at least 101% IACS. This purity ensures immunity to hydrogen embrittlement, making it indispensable for vacuum electronics, semiconductor manufacturing, and cryogenic engineering.
With the surge in AI-driven chip demand, OFHC copper has moved from a "bulk metal" to a "critical electronic material." Semiconductor fabrication relies on C10100 for vacuum seals and high-purity sputtering targets.
The transition to 800V architectures in Electric Vehicles requires busbars and connectors with minimal resistance to reduce heat generation. OFHC copper offers the lowest resistivity profiles available today.
At temperatures near absolute zero, thermal conductivity is paramount. OFHC copper is the only material that maintains mechanical integrity and high thermal transfer at cryogenic levels, supporting the next generation of quantum processors.
The China factory advantage in OFHC copper production is no longer just about cost; it is about vertical integration and technological scaling. Factories like Kepai utilize integrated continuous casting and extrusion lines that minimize handling and contamination.
Raw material sourcing to final precision extrusion in under 15 days, compared to the 60-day lead times typical of Western manufacturers.
Rapid prototyping for custom specifications. If a client requires a specific grain size or hardness for aerospace, Chinese engineers can iterate within a single production cycle.
Adherence to ISO 9001:2015 and IATF 16949 ensures that Chinese-exported copper meets or exceeds European and American ASTM B170 standards.
| Property | ASTM C10100 (OFE) | ASTM C10200 (OF) | Kepai Standard (Ultra-Pure) |
|---|---|---|---|
| Copper Content (Min) | 99.99% | 99.95% | 99.995% |
| Oxygen Content (Max) | 5 ppm | 10 ppm | < 3 ppm |
| Electrical Conductivity | 101% IACS | 100% IACS | 102% IACS |
| Hydrogen Embrittlement | Immune | Immune | Exceeds ASTM B170 |
| Typical Applications | Particle Accelerators | High-end Audio/Visual | Medical Superconductors |
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech private company specializing in R&D, production and sales of high conductivity and high strength free cutting tellurium copper and other special copper alloys.
Our focus extends beyond standard specifications. We emphasize Information Gain through our proprietary metallurgical processes that allow for the production of oxygen-free highly conductive tellurium copper—a material that bridges the gap between high conductivity and superior machinability.
Providing custom OFHC solutions for industries that demand perfection.
Copper has bactericidal, anti-inflammatory, antioxidant and other effects. In MRI machines and medical lasers, OFHC copper ensures stable high-frequency transmission without interference.
Copper has excellent electrical and thermal conductivity, making it the best choice for charging piles, battery connectors, and motor windings in terms of system efficiency.
From generators to data transmission in extreme environments, our copper alloys resist seawater corrosion and maintain integrity under high-stress atmospheric conditions.
Oxygen free and highly conductive tellurium copper alloy with independent intellectual property rights. We solve the trade-off between conductivity and processing performance.
ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018. Compliance with REACH and RoHS standards for environmental sustainability.
Implementation of lead-free and eco-friendly casting processes to ensure that our materials contribute to a greener global supply chain.
Market Distribution: Exporting to Europe, North America, and South-East Asia with a reputation for consistency and technical depth.
Partner with China's leading OFHC copper exporter for materials that redefine precision and conductivity. Contact us for a technical consultation or a competitive quotation.
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