BRONZE

ASTM 13103 C 51000:

ASTM standard specifying the composition and mechanical properties for phosphor bronze alloys.

SAE J 463 C 51000:

SAE standard detailing the requirements for phosphor bronze alloys used in various applications.

BS 2874 PB 102:

British Standard specifying the composition and mechanical properties for phosphor bronze alloys.

CW 451K:

European standard designation for phosphor bronze alloys.

Properties:

1. Corrosion Resistance:
• Excellent resistance to corrosion in various environments, including seawater and industrial atmospheres
• Resistant to stress corrosion cracking and dezincification.
Mechanical Properties:
• Tensile Strength: Typically around 350-800 MPa.
• Yield Strength: Approximately 150-400 MPa.
• Elongation: Generally around 15-30%, indicating good ductility
• Hardness: High hardness, with a typical Brinell hardness number (HB) of around 50-150.
Wear Resistance:
• Good wear resistance, suitable for applications involving friction and mechanical stress.
• Low friction properties, ideal for bearing and bushing applications.
Machinability:
• Good machinability, allowing for precise manufacturing and machining of components.
• Can be easily cast, forged, and worked.
Thermal and Electrical Conductivity:
• Good thermal conductivity, making it suitable for heat exchangers and electrical applications.
• Moderate electrical conductivity, lower than pure copper but sufficient for many uses.

Applications:

Bearings and Bushings: Extensively used in the production of bearings and bushings due to its good wear resistance and low friction properties.
Marine Hardware: Commonly used in marine hardware such as propellers, pumps, and valves due to its excellent corrosion resistance.
Musical Instruments: Used in the production of various musical instruments due to its excellent acoustic properties.
Art and sculpture: Widely used in art and sculpture due to its aesthetic appeal and ease of casting.
Industrial Equipment: Suitable for various industrial equipment parts, including gears, connectors, and fasteners.