PHOSPHROS BRONZE

C67300 / C67500 / C66800 / C67400 / C67600 / C86200 / C67000:

ASTM standards specifying the composition and mechanical properties for different grades of phosphor bronze.

BS 1400/ HTB-3:

British Standard specifying the requirements for high-tensile phosphor bronze alloys.

Properties:

1. Corrosion Resistance:
• Excellent resistance to corrosion in various environments, including seawater and industrial atmospheres.
• Resistant to stress corrosion cracking.
Mechanical Properties:
• Tensile Strength: Typically around 350-800 MPa.
• Yield Strength: Approximately 150-400 MPa.
• Elongation: Generally around 10-20%, indicating good ductility
• Hardness: High hardness, with a typical Brinell hardness number (HB) of around 100-300.
Wear Resistance:
• Superior wear resistance, suitable for applications involving heavy loads and friction.
• Good anti-galling properties, ideal for bearings and bushings.
Machinability:
• Good machinability, allowing for the manufacturing and machining of complex components.
• Can be cast, forged, and worked to various shapes.
Thermal and Electrical Conductivity:
• Good thermal conductivity, suitable for heat exchange applications.
• Moderate electrical conductivity, sufficient for many industrial uses but lower than pure copper.

Applications:

Bearings and Bushings: Extensively used in the production of bearings and bushings due to its superior wear resistance and low friction properties.
Spring and Electrical Contacts: Commonly used in electrical contacts and springs due to its good conductivity and mechanical properties.
Marine Hardware: Suitable for marine hardware such as propellers, pumps, and valves due to its excellent corrosion resistance.
Industrial Equipment: Used in various industrial equipment parts, including gears, connectors, and fasteners.
Aerospace and Defense: Employed in the aerospace and defense industries for components requiring high strength and corrosion resistance.