Explore our top-performing custom-engineered copper components, trusted by Fortune 500 manufacturers for thermal excellence and mechanical endurance.
Unparalleled free-cutting performance combined with superb electrical conductivity. Engineered for high-speed automated machining.
Premium tin-phosphorus bronze alloy delivering high structural elasticity, outstanding fatigue limits, and robust wear resistance.
The gold standard in free-machining efficiency. Outstanding dimensions stability and highly responsive forming capacities.
Advanced precipitation-hardened alloy showing high yield strength combined with strong electrical conductivity parameters.
Top mechanical threshold alloy tailored for critical springs, heavy contacts, switches, and high-vibration aerospace connectors.
Achieve dramatic structural efficiency with zero hot-cracking. Superior conductivity values for mass-produced component runs.
Uncompromising 99.9% purity levels ensuring max electrical & thermal transmission indices. Excellent for demanding busbar systems.
Our flagship high-elasticity alloy. Provides the highest strength threshold available in the commercial copper-beryllium spectrum.
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. has established itself as an elite global benchmark in the production and technological advancement of specialty copper alloys.
Pure copper stands as the backbone of modern electrical, automotive, and industrial engineering. However, in demanding applications such as high-frequency aerospace modules, plasma-cutting equipment, and electric vehicle (EV) fast-charging infrastructure, conventional grade copper fails to meet modern wear-resistance and machinability standards. This challenge catalyzed Kepai's independent research and development into oxygen-free and high-conductivity tellurium copper alloys, resolving the historical dilemma of achieving simultaneously high electrical conductivity and excellent free-cutting performance.
"By precision-dosing alloying elements like Tellurium, Beryllium, Cobalt, and Sulfur, Kepai successfully produces raw materials with a machinability rating of over 85% without degrading IACS electrical transmission factors."
Understanding the micro-structural orientation of specialty copper is vital for high-precision manufacturing. In order to optimize thermal dissipation and current delivery, industrial procurers must align their operations with precise chemical parameters:
| Alloy Code | UNS Standard Equivalent | Key Mechanical Properties | Core Industrial Application |
|---|---|---|---|
| C19160 | UNS C19160 (CuNiSiCr) | Precipitation-strengthened, high softening limit | Heavy contact pins, aerospace connectors |
| Tellurium Copper | UNS C14500 (TeCu) | 85% Machinability, 93-98% IACS conductivity | Plasma cutting electrodes, new energy contacts |
| Beryllium Copper | UNS C17200 / C17300 | Tensile strength up to 1380 MPa (200 ksi) | Precision spring clips, subsea repeaters |
| Sulfur Copper | UNS C14700 (S-Cu) | No-stick chip release, stable high-temp strength | Mass automatic screw machine parts |
Our premium range of alloys includes Phosphor Bronze (C51100 and C54400), renowned for its outstanding mechanical resilience, and Chromium-Zirconium Copper (C18150), specifically designed to withstand the violent thermal cycles of industrial spot-welding processes. Through systematic controls at the raw ingot phase, Sichuan Kepai prevents impurity aggregation, giving global buyers high-yield performance during machining.
Our specialized alloy formulas serve as critical structural components across complex mechanical and electronic ecosystems worldwide.
High-conductivity pure copper is essential to support the fast-charging currents in electric vehicle systems. Kepai’s high-conductivity tellurium copper rods are the raw material of choice for power terminals and EV busbars, enabling minimum thermal resistance and rapid battery pack charging cycles.
From auxiliary generator systems to signal-critical radar instrumentation, our beryllium-copper formulations provide unmatched high-elastic stability and fatigue resistance, operating flawlessly in wide thermal windows ranging from deep cryogenics to 300°C.
Non-magnetic requirements in high-field MRI diagnostic machinery rely on custom-forged copper configurations. The antibacterial and biocompatible nature of our copper alloys further ensures compliance for critical surgical tools and sanitizable room surfaces.
The aggressive salinity of marine environments requires materials with strong anti-fouling capabilities. Our tin bronze and copper-nickel alloys display remarkable bio-fouling protection and uniform resistance to localized stress corrosion cracking.
Operating from our 29,000 square meter factory floor in Sichuan, Kepai has transitioned traditional copper forging into a fully unified smart manufacturing ecosystem. Our Factory 4.0 standard encompasses vacuum induction melting, up-cast continuous casting, specialized cold drawing, and automated online eddy-current diagnostic scans to verify zero-defect internal material structures.
By controlling every step of our vertically integrated manufacturing process, from cathode raw material input down to micron-level dimensional tolerances, we mitigate supply chain volatility. Global procurement groups benefit from stable pricing structures, predictable production schedules, and scalable bulk delivery options regardless of geopolitical disruptions.
Maintains uniform density and limits mechanical deviations across continuous profiles.
Removes molecular trace hydrogen, achieving clean oxygen-free copper grades.
Adjusts tellurium dispersion levels dynamically to suit specific free-cutting speeds.
The global push for electrification and sustainable energy requires continuous technological adaptation. Kepai is spearheading next-generation research programs designed to support upcoming advanced manufacturing technologies:
Developing ultra-fine, oxygen-free gas-atomized copper powders engineered for laser powder bed fusion (L-PBF) processes, allowing 3D printing of complex internal cooling geometries.
Leveraging nano-dispersion techniques to suspend minute metal atoms uniformly within the crystal lattice, achieving extreme mechanical strength without blocking electron channels.
Integrating closed-loop copper scrap reclamation processes and lowering fuel consumption parameters to deliver certified carbon-neutral copper supplies by 2030.
Delivering heavy metal components across borders requires absolute adherence to environmental, quality, and occupational health systems. Kepai’s processing sites maintain full certifications under standard global directories:
To facilitate seamless cross-border transactions, our logistics and operations teams offer deep technical support for export shipping lanes. We ensure fast customs clearance by organizing standard cargo packaging, wooden pallet bracing, anti-oxidant moisture wraps, and complete raw material certificates (MTR) detailing chemical and mechanical properties. This streamlines procurement for high-end international buyers.
Get professional metallurgical answers regarding our custom copper production, tolerances, processing standards, and order fulfillment.
Invest in advanced copper materials engineered to prevent structural defects, lower contact resistance, and maximize equipment service life.
Lead-enhanced beryllium copper delivers excellent machinability while maintaining the high mechanical strength of the C17200 baseline.
Limits oxygen content to under 10 ppm, eliminating hydrogen embrittlement risks in welding processes.
Highly resistant to cyclical mechanical wear. Outstanding performance for electrical switchgear and heavy-duty spring contacts.
Precision-manufactured raw material providing reliable free-machining performance for automated high-volume turning processes.
High cobalt formula increases the thermal limits and conductivity parameters of precipitation-hardened copper components.
Engineered for extreme yield limits and stability, resisting mechanical deformation under sustained structural loads.
Ideal for welding contacts and thermal transfer blocks. Maintains strong structural stability under harsh industrial heating cycles.
Our flagship structural tellurium copper formulation, trusted globally for its reliable cutting performance and electrical efficiency.
Reach out to our global technical consulting team. We assist procurement departments with custom metal profiles, detailed standard certifications, and optimized bulk pricing.
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