Phosphorus Bronze

Phosphorus bronze is a corrosion-resistant copper alloy that incorporates a small amount of phosphorus, which enhances its strength, hardness, and wear resistance. It is commonly used in applications requiring durability and resistance to fatigue and impact. The alloy's properties can be adjusted by varying the phosphorus content and combining it with other elements such as tin or lead.

Standards and Specifications:

• ISO: ISO 9453 – Specifies the chemical composition and requirements for phosphorus bronze used in various applications, including electronics and marine environments.
• UNS: C51000 – A common designation for phosphorus bronze, indicating a specific grade of the alloy with balanced properties for industrial use.
• EN: EN 1982 – Provides standards for phosphorus bronze castings, detailing their chemical composition and mechanical properties.
• BS: BS 2872 – Specifies the requirements for wrought phosphorus bronze in British Standards, focusing on material properties and applications.
• JIS: JIS H 3110 – Defines the standards for phosphorus bronze in Japanese Industrial Standards, including its chemical composition and mechanical characteristics.
• IS: IS 280 – Describes the specifications for phosphorus bronze used in Indian Standards, including casting and wrought products.

Properties and Applications:

Phosphorus bronze offers excellent wear resistance, high fatigue strength, and good machinability. It is often used for springs, bearings, and electrical contacts due to its ability to maintain performance under stress and corrosion.

Chemical Composition (Typical)

Mechanical Properties

Phosphorus bronze’s combination of strength, hardness, and corrosion resistance makes it a versatile material suitable for demanding engineering and industrial applications.