Welcome to Kepai New Material
Focus on high conductivity and high strength free cutting tellurium copper and other copper alloys
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.
Customer Production Scenarios & Complex Machining
EV & New Energy Components
In the manufacturing of charging infrastructure and New Energy Vehicles (NEVs), engineers demand materials that offer extreme electrical conductivity without sacrificing structural integrity. High-current connectors require materials like C11000 Pure Copper or advanced tellurium copper alloys to prevent overheating during rapid charging cycles.
Aerospace & Defense Connectors
Aerospace applications operate under extreme stress, vibration, and thermal fluctuations. As OEM C19160 Copper Alloy Suppliers, we see a massive demand for materials that provide high tensile strength and softening resistance. Precision CNC machining is mandatory to achieve the tight tolerances required for avionics.
High-Speed Automatic Lathe Machining
For mass production of welding nozzles and electrical switches, cycle time is critical. Traditional pure copper causes severe tool wear and poor chip control. Transitioning to a Wholesale C145 Tellurium Copper Exporter ensures manufacturers get free-cutting properties, allowing for increased feed rates and extended tool life.
Industry Pain Points: Machining vs. Conductivity
The fundamental paradox in copper metallurgy is that elements added to improve machinability typically degrade electrical and thermal conductivity. For instance, C11000 Pure Copper offers an outstanding 100% IACS conductivity but has a miserable machinability rating of 20%. This results in long stringy chips that entangle CNC tooling, leading to surface defects and catastrophic tool failure.
Conversely, when manufacturers seek high strength for spring contacts, they often look for Custom C18150 Crzrcu Copper Suppliers or utilize C 17200 (Beryllium Copper). While C17200 yields exceptional strength (up to 1380 MPa), the machining parameters must be strictly controlled to manage heat generation and tool wear.
Tellurium Copper (C14500) bridges this gap. By adding a precise amount of tellurium (0.4-0.7%), the alloy forms copper telluride inclusions that act as chip breakers, boosting machinability to 85% while retaining ~90% IACS conductivity.
Machinability vs Conductivity Index
Product Center: Optimized Model Recommendations
Based on the intricate balance of electrical conductivity, thermal performance, and CNC machining parameters, we recommend the following premium copper alloys for your specific production scenarios.
C14500 Tellurium Copper
As a leading Wholesale C145 Tellurium Copper Exporter, we provide alloys perfect for high-speed automated machining, offering 85% machinability and excellent arc resistance.
C11000 Pure Copper
The industry standard for electrical conductivity. C11000 Pure Copper delivers 100% IACS, making it the ultimate choice for EV busbars, transformers, and grounding systems.
C19160 High Strength Alloy
Sourced from top OEM C19160 Copper Alloy Suppliers, this nickel-silicon precipitation strengthened copper offers outstanding softening resistance for high-stress aerospace components.
C 17200 Beryllium Copper
C 17200 provides the highest strength of all copper-beryllium alloys (up to 1380 MPa). Ideal for precision spring clips, non-sparking tools, and highly reliable conductive contacts.
C14700 Sulfur Copper
A free-cutting alternative to tellurium copper, offering robust machinability and electrical performance for intelligent manufacturing and new energy sectors.
C17500 Beryllium Cobalt Copper
Known for high strength, high electrical conductivity, and good fatigue resistance. Also, consult us as your Custom C18150 Crzrcu Copper Suppliers for specialized welding electrodes.
C36000 Lead Brass
Hailed as the "King of Free-Cutting," C36000 is an ideal choice for manufacturing complex precision components on automatic lathes with minimal tool wear.
C51100 Phosphor Bronze
High-performance elastic copper alloy with tin and phosphorus to enhance strength, wear resistance, and corrosion resistance for electronic connectors.
Application Field
Our products are widely used in welding and cutting industry, connector industry, electrical switches, complex precision components, new energy vehicles and other fields.
Medical Equipment
Copper has bactericidal, anti-inflammatory, antioxidant and other effects, so it has a wide range of applications in the field of medicine.
New Energy Vehicle
Copper has excellent electrical and thermal conductivity, so it is the best choice in terms of system efficiency and performance.
Aerospace Applications
Copper wire is ideal for aerospace applications, especially for generators and data transmission parts.
Ocean Engineering
Copper alloy has good resistance to seawater corrosion and Marine biological fouling, and has been widely used in Marine engineering.
More Cases
Plasma Cutting Electrode, Plasma Cutting Electrode Holder, Photovoltaic Energy Storage.
More Cases
Plasma Cutting Electrode, Plasma Cutting Electrode Holder, Photovoltaic Energy Storage.
Research and Development Strength
With the industry's core technical personnel, with a high independent research and development production capacity.
Independent R&D Team
Our company has established its own independent R&D team, equipped with a complete production system and mature production technology. This allows us to have deep knowledge in the production...
Innovative Product Development
In addition to the production of traditional copper alloys, we have also developed a new type of highly conductive oxygen-free tellurium copper. Compared with traditional copper tellurium, this material has lower...
International Certification
Our company has passed ISO9001:2015, ISO14001:2015 and OHSAS 45001:2018 and other international certifications, which reflect our international standards in quality, environment and occupational health...
Technological Innovation
We continue to innovate in the development and production of tellurium copper alloy materials, and participate in the formulation of relevant industry standards, which not only enhances the market...
Social Responsibility
Our company focuses on environmental protection and sustainable development, through the use of environmentally friendly and free-cutting copper alloys and other materials, to reduce the impact...
Market Distribution
In addition to high share of the domestic copper alloy market, Kepai has exported to overseas clients with high reputation.
