Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech private enterprise specializing in the R&D, production, and global export of high-conductivity, high-strength free-cutting tellurium copper and specialized copper alloys. As a premier small-diameter copper tube supplier, we integrate academic research with industrial precision.
Our commitment to the E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) principle is evidenced by our 30+ patents and ISO certifications. We don't just supply metal; we provide critical components for the world's most demanding sectors.
In the era of miniaturization, the demand for precision small-diameter copper tubes (often with OD < 5mm) has surged. These are no longer mere conduits; they are sophisticated thermal management and signal transmission tools. Our "Information Gain" analysis shows that standard suppliers often fail at wall-thickness uniformity. Kepai overcomes this through Oxygen-Free High Conductivity (OFHC) casting, ensuring zero internal oxidation.
Our Tellurium Copper (C14500) offers 93% IACS conductivity, essential for EV charging ports and connectors.
Small-diameter tubes act as ultra-efficient heat pipes in 5G base stations and AI server cooling systems.
With free-cutting alloys like C14700 Sulfur Copper, production efficiency increases by up to 40% compared to pure copper.
The shift toward lead-free and sulfur-modified copper alloys is accelerating due to REACH and RoHS regulations. Kepai leads this by offering sustainable alternatives like TeCu and Sulfur-Copper.
New Energy Vehicles (NEVs) require high-current connectors. Precision tubing in C11000 and C10100 is vital for the thermal cooling of battery packs.
Weight reduction is key. High-strength Beryllium Cobalt Copper (C17500) provides the strength of steel with the conductivity of copper, ideal for satellite wiring.
A nickel-silicon precipitation strengthened alloy. It features outstanding softening resistance and high electrical conductivity, making it perfect for aerospace terminals.
The "King of Non-Ferrous Metals." Ultimate tensile strength can exceed 200 ksi (1380 MPa). Ideal for precision springs and pressure sensors.
Kepai's proprietary material. It achieves high conductivity and superior processing performance where traditional materials fail.
High-purity 99.99% copper. Essential for vacuum electronics and high-end audio transmission where purity is paramount.
From raw electrolysis to precision extrusion and final CNC machining, our 29,000 sqm facility in Sichuan ensures total quality control and lower logistics costs.
We provide rapid prototyping. Our independent R&D team can customize alloy ratios (Te, Be, S) to meet specific conductivity vs. hardness requirements.
Our products pass ISO9001, ISO14001, and OHSAS 45001. We understand the high-standard requirements of the North American and European markets.
Antimicrobial copper tubing for specialized instruments and hospital infrastructure.
Power transmission components for Tesla-spec charging systems and battery interconnects.
Generators, radar data transmission, and high-frequency communication parts.
Seawater corrosion-resistant alloys for offshore rigs and desalination plants.
Kepai's copper alloys are trusted by Tier-1 manufacturers across 50+ countries.
Tellurium Copper (C14500) offers significantly improved machinability (85% of free-cutting brass) while maintaining over 90% of pure copper's electrical and thermal conductivity. This makes it ideal for precision-machined parts like welding tips and connectors.
We utilize multi-pass cold drawing and vacuum annealing processes. This ensures an outer diameter tolerance of +/- 0.01mm and a mirror-like internal surface finish, critical for high-pressure and high-frequency applications.
Yes, we strictly follow the IATF 16949 quality management system for the automotive industry, ensuring our materials meet the rigorous reliability standards required by global EV manufacturers.
Absolutely. As an R&D-driven manufacturer, we can tailor the chemical composition (Be, Te, Sn, P, Ni, etc.) to optimize the material for specific mechanical properties like high fatigue strength or extreme thermal conductivity.
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Kepai New Material
