Explore our elite grade copper and alloy sheets optimized for global electronics, welding and energy transmission architectures.
An authoritative analysis of solid copper sheets and copper alloy engineering protocols for strategic enterprise procurement.
Solid copper sheets used in global power systems must conform to standard International Annealed Copper Standard (IACS) ratings. High purity oxygen-free copper (OFC) products can achieve upwards of 101% IACS, ensuring minimized resistive heating and superior electrical efficiency.
Adding key trace elements alters the metallurgical phases. Tellurium (C14500) and Sulfur (C14700) act as exceptional chip-breakers, rendering copper machinable for high-volume automated lathes without causing severe electrode wear in plasma systems.
Solid copper sheets exhibit a thermal conductivity rate of around 401 W/(m·K). This makes them optimal for thermal dispersion plates, heatsinks in industrial servers, and aerospace components handling elevated heat densities.
As modern infrastructure undergoes rapid transformation toward decarbonization and intelligent computing, global demand for premium solid copper sheets has surged. Industry supply chains now require extremely tight chemical composition ranges and specific grain size distributions. In electrical automotive manufacturing, solid copper sheets act as the critical backbone for busbars, high-voltage battery pack interconnects, and charging interface pins. High-purity alloys are required to prevent electrical tracking, structural embrittlement, and heat accumulation during fast charging operations.
Furthermore, in 5G wireless base stations and micro-cell towers, copper alloys serve a dual purpose: high-density heat dissipation and RF shielding. The material must possess the mechanical ductility to be stamped and deep-drawn into intricate structural shielding enclosures without micro-cracking.
Pure copper is notorious for its poor machinability due to its high ductility and gummy behavior under typical high-speed cutting tools. To address this challenge, industrial metallurgists introduce alloying elements to facilitate clean chip shearing. C14500 Tellurium Copper and C14700 Sulfur Copper are designed precisely to bridge this gap, maintaining up to 93-98% IACS electrical conductivity while boosting the machinability rating to 85% relative to free-cutting brass (C36000). This unique combination of properties dramatically reduces tool wear and cycle times in CNC turning and milling processes.
For enterprise procurement agents, auditing a supplier goes beyond reviewing price quotes. A reliable exporter must offer end-to-end trace documentation, including mill test reports (MTR) according to EN 10204 3.1, chemical analysis via optical emission spectroscopy (OES), and physical property metrics like hardness (HRB/HV) and tensile strength. Our production facility is equipped to conduct non-destructive testing (NDT) to prevent subsurface defects and porosity in the alloy sheets, ensuring reliability in critical aerospace and medical operations.
A sequential mapping of our rigorous metallurgical refining, processing and inspection processes.
Our raw materials are processed through state-of-the-art electric induction melting furnaces. We control oxygen levels strictly below 10 ppm for oxygen-free high-conductivity copper sheets, preventing hydrogen embrittlement during subsequent hot working and welding processes.
Precision sizing is performed through controlled hot extrusion and cold rolling operations. We employ multiple passes to achieve consistent gauge thickness control, excellent flatness tolerances, and uniform mechanical grain distribution across the sheet width.
To ensure high dimensional stability when parts are stamped, drawn, or milled, we perform precision straightening and tension leveling. This minimizes residual internal stresses that cause warped components during manufacturing.
Using advanced eddy-current conductivity testers and microhardness testing rigs, we confirm that every manufacturing batch conforms to national and international ASTM, DIN, and JIS standards before packaging and shipping.
Learn how Sichuan Kepai New Material Co., Ltd. leads in technical innovation, rich product offerings, and localized global support.
Technological innovation is the core competitiveness of Sichuan Kepai New Materials Co., Ltd. The company has a research and development and production team composed of senior industry experts who keep pace with international cutting-edge technology trends and continuously explore the unknown boundaries in the field of new copper alloy materials.
Through a combination of independent research and development and industry-university-research collaboration, Kepai has made breakthrough progress in several areas, including high-performance tellurium copper, lead copper, and sulfur copper. Many of its technological achievements have reached international advanced levels and have been successfully applied in various industries such as new energy vehicles, precision machining parts, plasma cutting, relays, and energy storage, earning widespread recognition and praise in the market.
Kepai's product line is rich and diverse, covering a comprehensive range of solutions from basic materials to high-end customization. We focus on providing customers with high-performance, high-quality high-end copper alloy products, including but not limited to pure copper, oxygen-free copper, oxygen-free high-conductivity tellurium copper, nickel tellurium copper, tin bronze, beryllium copper, lead bronze, sulfur copper, and chromium zirconium copper.
These products play an important role in reducing production costs and enhancing product performance due to their excellent physical and chemical properties and environmental friendliness, creating significant economic and social benefits for customers.
In the face of global market competition, Sichuan Kepai New Materials adheres to the development strategy of "rooted in Sichuan, radiating nationwide, and moving towards the world." By continuously optimizing market layout and improving the sales network, we have established a stable customer base in multiple provinces and cities across the country and have formed long-term cooperative relationships with several internationally renowned enterprises.
At the same time, the company actively expands into overseas markets, participates in international competition and cooperation, and strives to promote Kepai's brand influence on the global stage.
We understand that the long-term development of an enterprise is inseparable from an excellent corporate culture. We advocate the corporate spirit of "integrity, innovation, collaboration, and win-win," encouraging employees to explore boldly and innovate courageously, while also emphasizing teamwork and talent cultivation, striving to create a harmonious, open, and inclusive work atmosphere.
We believe that only by continuously pursuing excellence and creating value can we win the trust of customers and the respect of society. Under this banner, we are committing to reducing metallurgy waste and promoting recycling systems.
Our commitment to international quality standards, verified by comprehensive certifications.
Take a virtual tour through our sophisticated smelting, drawing, mechanical testing and testing laboratories.
Smelting Furnace
Laying-Off Unit
Extrusion Press
Drawing Section
Straightening Machine
Packaging Operations
Eddy Current Conductance
Composition Test Room
Polishing Machine
Electro-hydraulic Testing Machine
Electronic Testing Machine
Hardness Tester
Expert technical answers to critical electrical and mechanical questions concerning copper sheet sourcing.
Technical industrial materials built for high strength, wear resistance, and long-term electrical durability.
Whether you require tight tolerances for 5G relays, laser cutting sheets, or custom composition specifications, Sichuan Kepai New Material Co., Ltd. provides the manufacturing capabilities and certification depth to meet your demands.
Kepai
