Established in May 2017, Sichuan Kepai New Materials Co., Ltd. has emerged as a titan in the R&D and production of high-conductivity special copper alloys. With a focus on high-strength free-cutting tellurium copper and nickel-silicon systems, we provide critical material solutions for the world’s most demanding industries.
Our 29,000-square-meter facility is a hub of technological advancement, where we transform raw metallurgical theory into high-performance industrial reality. By combining precipitation hardening techniques with precise lead additions, we deliver alloys like C19160 that define the intersection of durability and processability.
C19160 (CuNiSiCr) is a nickel-silicon precipitation-strengthened copper alloy. The addition of lead (Pb) is the defining factor that grants it "free-cutting" status, allowing for ultra-high-speed machining without sacrificing the structural integrity of the copper matrix.
Unlike standard brass, C19160 offers superior softening resistance and electrical conductivity. Through meticulous heat treatment (aging), Ni2Si particles precipitate within the matrix, locking dislocations and significantly increasing tensile strength while maintaining a high IACS percentage.
The lead phase acts as an internal lubricant and chip-breaker. For high-volume manufacturers, this means reduced tool wear, faster cycle times, and a superior surface finish on complex components such as connector pins and switchgear parts.
In the current global landscape, the shift toward Electric Vehicles (EV), 5G Infrastructure, and Aerospace Electrification has created a vacuum for materials that can withstand high thermal loads while providing reliable conductivity. C19160 serves as a critical bridge in these supply chains.
High-current connectors in EV charging stations and battery management systems (BMS) require the fatigue resistance of C19160 to handle thousands of mating cycles without failure.
For 5G base stations, signal integrity is paramount. Our nickel-copper alloys provide the EMI shielding and thermal dissipation necessary for high-frequency signal processing units.
The medical and defense sectors demand absolute dimensional stability. C19160’s predictable thermal expansion and corrosion resistance make it ideal for surgical instruments and radar components.
As we look toward the next decade, the focus of copper alloy manufacturing is shifting toward Environmental, Social, and Governance (ESG) compliance. Kepai New Material is leading this transition by developing "Low-Lead" and "Lead-Free" alternatives that mimic the free-cutting performance of C19160 through advanced grain refinement and innovative alloying elements like Tellurium and Sulfur.
The miniaturization of electronics will require alloys with even higher yield strengths. We are currently researching the addition of trace Rare Earth elements to further stabilize the microstructure of leaded nickel copper, ensuring its relevance in the age of nano-electronics.
Our company has passed ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018 certifications. Every batch of C19160 undergoes rigorous testing for grain size, tensile strength, and electrical conductivity.
With localized support centers and a robust export network, we ensure that our high-performance alloys reach clients in Europe, North America, and Southeast Asia with full regulatory compliance (REACH/RoHS).
We don't just sell materials; we provide engineering solutions. Our R&D team works directly with client design houses to customize alloy tempers for specific industrial applications.
Utilizing copper's natural antimicrobial properties and precision for surgical components.
High-conductivity solutions for battery terminals and charging interfaces.
Lightweight, high-strength wiring and connector parts for extreme environments.
Alloys resistant to seawater corrosion and bio-fouling.
While C36000 is excellent for general machining, C19160 (Nickel Copper) offers significantly higher strength and better resistance to softening at elevated temperatures due to its precipitation-hardening mechanism. It is the preferred choice for high-stress electrical components.
Yes. Depending on your manufacturing process (e.g., cold heading vs. high-speed turning), we can adjust the cold work and aging cycles to provide the ideal balance of ductility and hardness.
C19160 contains lead to enhance machinability. Under current RoHS exemptions for copper alloys (Exemption 6c), lead content up to 4% by weight is permitted. We ensure all our products meet these global standards and provide full material certifications.
Standard stock items can be shipped within 7-10 days. Custom alloy runs or specific geometric profiles (hexagonal, flat bar) typically range from 4 to 6 weeks depending on volume and logistics.
Kepai New Material
