High-Quality Brass Alloys Factory & Companies

Premium Copper Alloy Engineering: Delivering Next-Generation Material Solutions for NEVs, 5G Communications, and High-Precision Global Smart Manufacturing.

ESTABLISHED 2017

Pioneering the Future of Strategic High-End Copper & Brass Alloys

Established in 2017, Sichuan Kepai New Material Co., Ltd. has evolved into a premier national high-tech enterprise integrating research, development, custom manufacturing, and international sales. Operating from the western area of the Sichuan Guanghan Industrial Development Zone, we utilize advanced manufacturing infrastructure strategically aligned to adjacent logistical arteries such as National Highway 108.

Spanning a comprehensive 9,000 square meter factory floor combined with 1,000 square meters of technical design and administrative workspace, Kepai focuses on national strategic emerging material technologies. We lead in the formulation and processing of specialized non-ferrous alloys, including tellurium copper, high-conductivity oxygen-free copper, silver copper, dispersion copper, and sustainable high-strength, easy-to-machine variations.

Our Industrial Philosophy

"Innovation-driven development, quality wins the market." We dedicate our research and supply chain to accelerating industrial upgrades for clean automotive tech, 5G infrastructures, energy storage, and aerospace components.

2017
Established Year
Years of engineering excellence and material research innovation.
9,000㎡
Manufacturing Facility
Equipped with custom casting, extrusion, and drawing machines.
1,000㎡
Administration & Lab Space
Dedicated chemical composition testing and engineering center.

Technical Strength & Engineered Product System

Discover how Sichuan Kepai bridges advanced materials science with global industrial supply chains through customized engineering.

High-Performance Core Alloys

We engineer premium copper and brass solutions optimized for conductivity, strength, and workability. Our primary product ranges cover 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.

Advanced R&D Leadership

Technological innovation is Kepai's core competitive advantage. Our dedicated research division consists of metallurgy scholars and process engineers who collaborate closely with industry-leading universities and institutes to breakthrough machining and electrical performance boundaries.

Environmental Compliance

Our products reduce overall machining cycles and tooling costs while complying with ecological guidelines. We support global manufacturing efforts toward compliance by developing low-lead and lead-free brass formulations that meet strict environmental mandates without sacrificing mechanical properties.

Material Specification Matrix

Our materials are optimized for exact structural specifications depending on industry application. See how Kepai engineers each alloy system:

  • C14500 Tellurium Copper: Combines high electrical conductivity (min 93% IACS) with excellent machinability (85% relative to free-cutting brass), perfect for gas nozzle and EV power contactor application.
  • UNS C51900 Phosphor Bronze: Provides exceptional spring temper, high fatigue resistance, and superior corrosion resistance for custom connector springs.
  • C14700 Sulfur Copper: An optimal alternative offering superior free-cutting features, ideal for automated lathe turnings where tool wear must be mitigated.
  • C26000 Cartridge Brass (CuZn30): Excellent cold workability, drawing, stamping, and forming characteristics, used heavily in shell cases, radiator cores, and deep-drawn hardware.

Market Layout and Strategic Expansion

In response to highly complex international market demands, Sichuan Kepai New Materials adheres to the strategic layout of "Rooted in Sichuan, radiating nationwide, and moving towards the world."

By continuous optimization of processing systems and dynamic supply logistics, we have established stable partnerships with domestic heavy industries while scaling operations across North America, Europe, East Asia, and the Middle East.

Our commitment goes beyond simply manufacturing copper alloy bars and plates; we act as material science partners, providing custom engineering feedback to resolve high-amperage electrical constraints, structural wear challenges, and extreme environmental corrosion.

Unlocking Chinese Supply Chain Advantages in Brass & Copper Production

How our strategic localization and heavy manufacturing cluster provide global buyers with unparalleled cost efficiency, rapid scaling, and processing consistency.

The global industrial landscape demands absolute predictability in material supply chains. By establishing our manufacturing node in the **Sichuan Guanghan Industrial Development Zone**, Sichuan Kepai integrates into one of China's most robust industrial ecosystems. We utilize regional logistics networks, raw copper refining capabilities, and a highly skilled workforce, ensuring cost and efficiency benefits passed directly to global procurement.

Unlike western mills that suffer from escalating operating overhead and aging machinery, our facility integrates modern automation, digital temperature-controlled extrusion, and high-efficiency drawing processes. This vertical capability minimizes waste, optimizes raw energy utilization, and permits competitive pricing models without compromising the integrity of complex, multi-element copper alloys.

Strategic Logistics and Direct Global Shipping

Adjacent to major interstate arteries like National Highway 108 and connected to major intermodal shipping lines, we guarantee efficient transport logistics from our plant floor to international ports like Shanghai, Shenzhen, and Ningbo, accelerating delivery timeframes across the globe.

Supply Chain Performance Indicators

Raw Material Sourcing Control 99.8% Quality Pass
On-Time Production Dispatch 98.5% Reliability
Custom Metallurgical R&D Cycle Reduced by 35%
Precision Tolerance Conformity 99.9% Strict Tolerance

Global Procurement Demands & Industrial Applications

Bridging the gap between raw copper processing and high-end technological integrations in leading global sectors.

New Energy Vehicles (NEVs)

Modern EVs demand reliable conductivity under extreme vibration and high thermal cycling. Our **C14500 tellurium copper** is critical for lithium battery relay connectors, charging interfaces, and power distribution terminals.

Key requirement: Max IACS & high machinability

5G Telecom Infrastructure

High-frequency data transfer components rely on tight manufacturing tolerances and excellent RF signal properties. Our phosphor bronzes and oxygen-free coppers form the basis for coaxial connectors, switches, and antenna elements.

Key requirement: High elasticity & corrosion resistance

Laser Cutting & Plasma Systems

Plasma cutting nozzles and gas-mixing tips operate under thermal loads exceeding 1000°C. Utilizing tellurium copper prevents heat-induced degradation, maintaining orifice shape and extending consumable life.

Key requirement: Anti-sticking, wear resistance & low erosion

Compliance Assurance & Standardization

Global manufacturers face strict material verification frameworks. At Sichuan Kepai, we implement absolute process traceability in accordance with ISO 9001 quality systems and RoHS environmental guidelines.

Every manufacturing batch undergoes chemical verification via optical emission spectrometry and mechanical validation. We provide comprehensive mill test reports containing exact grain size, tensile metrics, and electrical resistivity values matching **ASTM, EN, and JIS** standards.

Addressing Procurement Pain Points

Dimensional Consistency: Our advanced cold drawing and straightening machines prevent dimensional variance, reducing feed failures in automated high-speed CNC centers.

Inventory Agility: Through our production volume and strategic warehousing, we protect our clients against metal cost fluctuations by offering scheduled delivery options and stable material allocations.

International Certifications & Standards Compliance

Tested and certified properties validating our commitment to reliability, performance, and international manufacturing regulations.

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Certificate 14

Our Advanced Production & Testing Equipment

End-to-end manufacturing workflows combined with laboratory-grade testing machines to guarantee batch-to-batch consistency.

Smelting
Smelting
Laying-off
Laying-off
Extrusion
Extrusion
Drawing
Drawing
Straightening
Straightening
Package
Package
Eddy Current Conductance Instrument
Eddy Current Conductance Instrument
Chemical Composition Test Room
Chemical Composition Test Room
Metallographic Sample Polishing Machine
Metallographic Sample Polishing Machine
Servo Universal Testing Machine
Microcomputer Controlled Electro-hydraulic Servo Universal Testing Machine
Universal Testing Machine
Liquid Crystal Display Electronic Universal Testing Machine
Hardness Tester
Hardness Tester

Alloy Evolution: Green Metallurgical Systems & Smart Trends

Exploring the macroeconomic forces and technical shifts redefining global copper alloy procurement policies.

Macro Trends Driving Change

As industries strive to hit net-zero targets and construct more reliable high-amperage powertrains, copper remains an irreplaceable material. However, standard brasses are no longer sufficient. Modern designs require specialized alloys engineered for longevity and higher operating efficiencies.

1. The Lead-Free Initiative: Lead has historically been added to copper alloys to act as a lubricant and chip breaker during machining. Due to tight RoHS regulations, global buyers are pivoting to bismuth, silicon, or sulfur-alloyed copper (such as **C14700 Sulfur Copper**) to secure rapid machining rates while eliminating environmental liabilities.

2. High-Amperage Conductivity Demands: EV platforms transitioning from 400V to 800V architectures require charging connectors with minimal electrical resistance to mitigate heat buildup. Kepai's focus on tellurium copper provides high-purity microstructures that deliver over 93% IACS conductivity while resisting wear under repetitive plug-in cycles.

3. AI & Automation Integration: Digital manufacturing relies on consistent input materials. Variable hard spots or minor deviation in alloy rod diameters can cause tool breakage or downtime in robotic milling stations. Our production line integrates eddy current inspection systems to guarantee defect-free internal structure and precise outer diameter tolerances for automated production.

Technical FAQs & Procurement Insights

Expert technical advice helping engineers and sourcing managers identify the ideal alloy formulations.

What makes C14500 Tellurium Copper superior to pure copper in CNC machining applications?
Pure copper is highly ductile and "gummy" during machining, which causes tool wear and continuous stringy chips that can tangle automated lathes. By adding 0.4% to 0.7% tellurium, C14500 tellurium copper gains a high machinability rating (85% relative to free-cutting brass) while retaining over 93% IACS electrical conductivity and excellent thermal transfer. This reduces tool replacement costs and cycle times.
How does Sichuan Kepai guarantee chemical composition and grade consistency?
We utilize a complete testing suite including a chemical composition test room and eddy current conductance instruments. During smelting, optical emission spectrometry (OES) checks the exact element fractions before casting. Finished rods and profiles are verified for physical properties using universal testing machines and metallographic analysis, and each shipment is accompanied by a mill test report.
Is sulfur copper (C14700) a viable alternative to tellurium copper (C14500)?
Yes. C14700 sulfur copper offers similar machinability (85%) and high conductivity (around 95% IACS). It is often selected for specific electrical switchgear, relay terminals, and assemblies where tellurium is less critical, or where specific manufacturing standards mandate sulfur-based alloys.
Can you support custom profiles, extrusions, and dimensional tolerances?
Absolutely. Beyond standard round, hexagonal, and rectangular rods, our production line specializes in custom hot extrusion and cold drawing. We work with client engineering drawings to deliver custom-profiled cross-sections, minimizing pre-machining waste. We regularly manufacture within tight tolerances (up to h7 or custom specifications) based on application requirements.
How does Kepai address RoHS and environmental compliance?
Our strategic material development program targets low-lead and lead-free copper solutions. We strictly manage raw inputs to ensure all copper alloys designed for electronic, automotive, and plumbing applications meet RoHS and REACH regulations. We provide corresponding certification documents to support the environmental compliance of our clients' global supply chains.

GET STARTED TODAY

Looking ahead, Sichuan Kepai New Materials Co., Ltd. will continue to uphold its original intention, with even greater enthusiasm and determination, to engage in research and application in the field of new materials, contributing to the development of the new copper alloy materials industry in China and globally. We look forward to working hand in hand with friends from all walks of life to create a brilliant future together!