PB1 is a continuously cast phosphor bronze alloy, composed of 10-12% tin and trace amounts of phosphorus. It offers high mechanical strength along with good conductivity and wear resistance, though wrought materials may offer superior performance in these areas. Additionally, PB1 exhibits excellent corrosion and fatigue resistance and can be effectively soldered and brazed.

Material Properties: Phosphor Bronze PB1 is a phosphor bronze alloy that conforms to the requirements of B.S. 1400 – 1985 alloy PB1. It is known for its good machining properties, high strength, and excellent corrosion resistance, particularly to seawater and brine. This makes it suitable for pump and valve components, as well as bearings with medium to high loads and speeds. Adequate lubrication and good alignment are necessary for PB1 bearings. It is also suitable for heavy-duty gears and wormwheels with high working loads and speeds, provided they have proper lubrication and alignment. The composition of PB1 is strictly controlled, and the casting conditions are carefully managed to ensure quality and consistency. Products made from PB1 are manufactured using the latest continuous and centrifugal casting technology.

Grade Recognition: The PB1 grade bronze is recognized by various standards such as BS1400, ASTM B505, and SAE 65, indicating its widespread acceptance and use in the industry.

Commonly utilized in the production of bearings, sleeves, thrust washers, and gears.

Phosphor Bronze PB1： PB1 is a cast phosphor bronze material, consisting of 10-11.5% tin and small amounts of phosphorus. This alloy is known for its high mechanical strength, good conductivity, and wear resistance, along with exceptional corrosion and fatigue resistance. Phosphor Bronze PB1 can also be soldered and brazed effectively.

Chemical Composition: The chemical composition of Phosphor Bronze PB1 typically includes Tin (10.0 – 11.0%), Lead (up to 0.25%), Zinc (up to 0.05%), Nickel (up to 0.10%), Iron (up to 0.10%), Aluminium (up to 0.01%), Phosphorus (0.50 – 1.0%), and Copper making up the balance.

Mechanical Properties: The mechanical properties of PB1 include a yield strength of 170 MPa, an ultimate tensile strength ranging from 340 to 360 MPa, and an elongation of about 10%. The typical hardness is between 100 – 150 BHN.

• MACHINED COMPONENTS
• MATERIALS
• FACTORED PRODUCTS

Applications: PB1 is used extensively in the marine industry due to its excellent corrosion resistance in marine atmospheres and high mechanical strength. It is also used for worms and gears under high working loads, pump and valve components, bushes and bearings, flanges, hydraulics, and marine ultrasonics！

Enquire now and we will respond to your requirements！