In the hierarchy of copper alloys, C26000 Brass, commonly referred to as "Cartridge Brass" or "70/30 Brass," holds a position of unparalleled significance. Composed of approximately 70% copper and 30% zinc, this alloy achieves the optimal balance of ductility and strength, making it the preferred choice for applications requiring severe cold-working and deep drawing capabilities.
As a leading OEM C26000 supplier, we recognize that semantic search for this material has shifted from simple procurement to a need for "Technical Reliability" and "Information Gain." Our manufacturing process doesn't just produce metal; we engineer microstructure integrity that ensures zero failure in high-stress environments such as 5G telecommunications, aerospace connectors, and new energy vehicle components.
Exceptional cold-working properties allow for complex forming without cracking. Ideal for ammunition casings, radiators, and hardware.
Robust resistance to atmosphere and moisture, further enhanced by precision alloying and heat treatment to prevent dezincification.
While optimized for formability, C26000 maintains high thermal and electrical conductivity (approx. 28% IACS) suitable for modern electrical terminals.
Sichuan Kepai New Materials Co., Ltd., established in 2017, is a high-tech enterprise integrating research and development, production, and sales. Currently, the factory covers an area of approximately 9,000 square meters, with an office space of about 1,000 square meters. The company primarily engages in the production of strategic emerging new materials for the national 13th Five-Year Plan, including special copper alloys such as tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper.
Since its establishment, Kepai has adhered to the business philosophy of "innovation-driven development, quality wins the market," committed to providing customers with the highest quality high-end copper alloy materials, and promoting industrial upgrading and sustainable development.
The global demand for C26000 is currently undergoing a transformative phase. As C26000 factories, we are seeing three major trends that define the current macro environment:
The miniaturization of components in 5G base stations requires alloys that can be stamped into extremely thin, complex geometries without losing structural integrity. C26000's superior ductility makes it the cornerstone of the telecommunications hardware revolution.
Modern procurement directors at global enterprises are prioritizing "Green Copper." C26000 is 100% recyclable. Our factory has implemented a closed-loop recycling system that reduces the carbon footprint by 40% compared to traditional smelting processes, aligning with ESG (Environmental, Social, and Governance) mandates.
Standardized brass is no longer sufficient for the aerospace or precision medical device sectors. Clients now demand specific grain size control and hardness gradients. As a specialized C26000 supplier, we offer tailored metallurgical profiles to optimize the end-user's automated production lines.
Technological innovation is the core competitiveness of Sichuan Kepai New Materials Co., Ltd. Our R&D team composed of senior industry experts keeps pace with international cutting-edge technology trends. Through independent R&D and industry-university-research collaboration, Kepai has made breakthrough progress in several areas.
| Property Category | C26000 (70/30 Brass) Value | Industrial Application Impact |
|---|---|---|
| Electrical Conductivity | 28% IACS | High efficiency in electrical terminals and connectors. |
| Tensile Strength | 300 - 600 MPa (Depends on Temper) | Ensures durability in mechanical fasteners. |
| Density | 8.53 g/cm³ | Standard weight calculations for precision machining. |
| Coefficient of Thermal Expansion | 19.9 µm/m·°C | Predictable stability in variable temperature environments. |

Smelting

laying-off

extrusion

drawing

straightening

package

Eddy Current Instrument

Chemical Test Room
As a global OEM C26000 factory, we provide localized support and compliance assurance that mitigates risk for international buyers. Our solutions encompass:
Strategically located in Sichuan, China, we leverage the Belt and Road Initiative and National Highway 108 to ensure seamless logistics. We offer VMI (Vendor Managed Inventory) solutions for global partners to ensure just-in-time delivery.
Our products meet ASTM B19, B36, and B135 standards. We provide full material traceability, RoHS/REACH compliance certifications, and SGS-verified chemical analysis reports for every batch.
Looking towards 2025-2030, our R&D focuses on "Ultra-Fine Grain C26000," which improves yield rates in micro-stamping for next-generation lithium battery relays and aerospace sensors.
Q: What is the main advantage of choosing C26000 over C27000?
A: C26000 (70% Cu) has slightly higher copper content than C27000 (65% Cu), providing superior ductility and better corrosion resistance. It is the specific "sweet spot" for deep-drawn parts where C27000 might suffer from stress cracking.
Q: How does Sichuan Kepai ensure chemical consistency in large OEM orders?
A: We utilize vacuum induction melting and real-time spectral analysis. Each batch is tested for copper-zinc ratio accuracy within ±0.5%, ensuring consistent behavior in our clients' automated CNC and stamping machines.
Q: Can C26000 be used in high-voltage EV applications?
A: Yes, it is widely used for busbar connectors and terminal housings due to its balance of conductivity and mechanical strength, which prevents the terminal from deforming over long-term thermal cycling.
Q: What surface finishes can your factory provide for C26000 products?
A: We offer bare finish, anti-tarnish coating, tin-plating, and nickel-plating solutions to meet specific environmental resistance requirements.





Partner with Sichuan Kepai for high-performance copper alloys and precision C26000 solutions. We look forward to working hand in hand with friends from all walks of life to create a brilliant future together!