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Description

Phosphor Bronze Hollow Round Bar PB1 Imperial

  • PB1 Phosphor Bronze is a high-strength material that is often referred to as ‘gear bronze’.
  • Components that are machined from PB1 are particularly durable in applications where high working loads and speeds are encountered, provided that there is good alignment and adequate lubrication.
  • PB1 has good machining properties and good corrosion resistance to seawater and brine, making it suitable for pump and valve components.
  • Manufactured using finely controlled continuous or centrifugal casting techniques to ensure that hardness and strength are superior to sand-casting methods.
  • Material has a fine grain structure and is free from porosity.

Key Features

  • Handles high working loads
  • Good for high working speeds
  • Suitable for pump and valve components
  • Good corrosion resistance to seawater and brine
  • Suitable for heavy-duty gears and worm wheels

Common Applications

  • Bearings
  • Gear Boxes
  • Gears
  • Pump Components
  • Valve Bodies
  • Worm Gears
  • Worm Wheels

Chemical Composition

Element Symbol Range % Nominal %
Tin Sn 10.0-11.0 10.5
Lead Pb 0.25 maximum  
Zinc Zn 0.05 maximum  
Nickel Ni 0.10 maximum  
Iron Fe 0.10 maximum  
Aluminium Al 0.01 maximum  
Phosphorus P 0.50-1.0 0.7
Copper Cu Balance  
 

Physical Properties

Material Unit Phosphor Bronze PB1
Tensile Strength Min psi 40000
Yield Strength Min psi 25000
Elongation Min % 0.1
Hardness Min BHN 102
 

Machining Allowances

  • PB1 Bronze bar has machining allowances added to the sizes quoted. To use a 4-1/2" x 2-1/2" hollow bar as an example, this material would measure approximately 4.570" OD x 2.440" ID as supplied (see table below). This allows finished components measuring 4-1/2" OD x 2-1/2" ID to be easily manufactured from 4-1/2" x 2-1/2" hollow bar.
Outside Diameter Inside Diameter
Size Range Allowance Size Range Allowance
up to 3-3/4" +0.040" up to 3-3/4" -0.060"
4" to 5" +0.070" 4" to 5" -0.090"
5-1/4" to 6" +0.094" 5-1/4" to 6" -0.108"
6-1/4" to 20" +0.109" 6-1/4" to 18" -0.120"
 

Comparative Specifications

  • BS1400-PB1; AS1565 90710; SAE 65; JIS H5113 – PBC2C; DIN 1705 – G-CuSn10; ISO 1338 – CuSn10P; BS EN 19 82:1999 – CuSn11P

Specifications

  • AIMS SKU A0176217
  • Brand Kormax
  • Model Number PB1C4X3_30
  • Length 30 cm
  • Outside Diameter (inch) 4
  • Inside Diameter (inch) 3
  • Type Bronze Bar
  • Material Phosphor Bronze PB1
  • Style Hollow Round
SKU: A0176217

Phosphor Bronze Hollow Round Bar PB1 Imperial 4 x 3" x 30cm

Phosphor Bronze Hollow Round Bar PB1 Imperial

$868.70
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