Products

Phosphor Bronze (PB)

Phosphor Bronze (PB) is a copper alloy containing tin and phosphorus, known for its excellent strength, corrosion resistance, and durability. PB sheets are widely used across electrical, marine, and mechanical industries.

At Rajshree Metal Corporation (RMC), we offer premium-quality Phosphor Bronze sheets in various shapes, sizes and thicknesses, tailored to meet your specific industrial and commercial needs.

Grade: PB-I, PB-II, PB-III 
ASTM B103/B103M – UNS Number C51000, C52100
 
Shape and Size:
ShapeSize Range W x L / DiameterThickness
Sheet14” x 48“
16” x 48”
0.1 mm to 10 mm
Coil356 mm / 406 mm coil width0.05 mm to 2 mm
Circle40 mm to 406 mm diameter0.2 mm to 6 mm

Temper: Annealed (Soft), Quarter Hard (QH), Half Hard (HH), Hard (HD), Spring Hard (HS)

Phosphor Bronze (PB) copper alloy offers exceptional wear resistance and fatigue strength, making it ideal for demanding industrial applications.

Key Features:

  • High strength and wear resistance
  • Excellent corrosion and fatigue resistance
  • Superior machinability and formability
  • Good electrical conductivity

Low friction and anti-galling properties

Applications:

  • Electrical Industry: Switchgear components, connectors, and terminals
  • Marine Sector: Corrosion-resistant parts for shipbuilding and offshore applications
  • Automotive and Aerospace: Bearings, bushings, and springs
  • Industrial Machinery: Gears, fasteners, and valve components
  • Musical Instruments: Strings, reeds, and other precision parts