C5190 copper alloy, primarily known as Phosphor Bronze (CuSn6), represents the pinnacle of elastic and corrosion-resistant materials in modern metallurgy. As a high-performance alloy containing approximately 6% tin and a balanced trace of phosphorus, C5190 offers a unique combination of high strength, superior fatigue resistance, and excellent cold workability.
In the era of Semantic Search, industrial buyers are no longer just looking for "suppliers"; they are seeking Information Gain—technical depth that ensures material reliability in mission-critical environments like aerospace connectors, automotive relays, and medical instrumentation.
C5190 exhibits a tensile strength ranging from 450 to 750 MPa depending on the temper. Its high tin content enhances the alloy's hardness and wear resistance, making it the ideal choice for heavy-load bushings and precision springs.
While phosphor bronzes are prized for strength, our C5190 maintains a respectable conductivity (approx. 15% IACS), ensuring that components in electrical switches remain efficient without excessive heat buildup.
The addition of phosphorus acts as a deoxidizer during casting, resulting in a material that is highly resistant to seawater and industrial atmospheric corrosion, crucial for Marine Engineering applications.
| Property | C5190 (CuSn6) Specification | Advantage for Procurement |
|---|---|---|
| Tensile Strength (Rm) | 470 - 740 MPa | High durability under mechanical stress. |
| Hardness (HV) | 120 - 210 | Superior wear resistance for contact parts. |
| Elongation (A50mm) | ≥ 2% (Hard) to ≥ 40% (Soft) | Versatile forming capabilities for complex designs. |
| Standard Compliance | ASTM B103, JIS C5191, EN 1652 | Global interchangeability for OEM manufacturers. |
Established in 2017 in Sichuan, Kepai New Material utilizes a full-cycle production system. From vacuum induction melting to precision rolling, we control the entire value chain, reducing lead times by 30% compared to traditional exporters.
With 30+ patents, our R&D center focuses on "High Conductivity + High Strength" synergy. We don't just supply alloys; we engineer solutions like our proprietary oxygen-free tellurium copper and advanced C5190 variants.
Our facility is IATF 16949 certified, the gold standard for automotive supply chains. This ensures every millimeter of C5190 alloy meets the rigorous "Zero Defect" requirements of modern EV manufacturers.
The shift to electric vehicles requires massive amounts of high-performance copper alloys for battery management systems (BMS) and charging connectors. C5190's elasticity is vital for the spring contacts in vibration-heavy automotive environments.
As devices get smaller, the demand for thinner yet stronger foils increases. Our precision rolling technology produces C5190 foils that maintain structural integrity at sub-micron levels.
Kepai focuses on environmentally friendly production. Our alloys are designed for high recyclability, helping global enterprises meet their ESG (Environmental, Social, and Governance) targets.
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 special copper alloys. Our products are widely used in welding and cutting, connectors, electrical switches, new energy vehicles, and aerospace.
With the industry's core technical personnel, we possess high independent research and development production capacity. We have developed new types of highly conductive oxygen-free tellurium copper which offers lower impurity levels and higher performance compared to traditional tellurium copper.
Bactericidal and anti-inflammatory properties of high-grade copper alloys make them ideal for surgical tools and hospital surfaces.
High conductivity ensures system efficiency and thermal management in EV power modules.
Used in generators and data transmission parts where extreme reliability is the only option.
Resistance to seawater corrosion and biological fouling ensures longevity in offshore structures.
Beyond our dominant share in the domestic copper alloy market, Kepai has exported to clients across Europe, North America, and Southeast Asia with a high reputation for consistency.
Contact our engineering team today for a technical consultation on C5190 or any other high-performance copper alloy. We provide custom solutions that drive innovation.
Kepai New Material
