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Bronze PB1

 

PB1

 

Phosphor Bronze PB1 is an alloy of tin and copper to which phosphorus has been added during the casting process. It is a single phase alloy suitable for cold working.

 

The benefits of PB1 include its good resistance to corrosion, (approaching that of aluminum bronzes) and excellent mechanical and high fatigue strength.

 

 

 

PB1 is a tough material of very wide application. Typical examples of its use include the following…

  • Heavily loaded bearings
  • Re-drawing
  • Weaving
  • Cold heating
  • Spinning

 

PB1 is mainly available in hollows and rods…

Hollows from 1”OD – 16”OD

Rods from ½”dia – 13”dia 

 

 

 

 

Chemical & Physical Properties

 

Typical Chemical Composition

ElementsMin%Max%
Al0.005
CuRemainder
Fe0.10
Ni0.10
P0.51.2
Pb0.25
S0.05
Sb0.20
Si0.005
Sn10.012.0
Zn0.05

Typical Mechanical Properties

Property/unitConditionTempMinMax
Tensile Strength (N/mm2)CentrifugalRT330
Elongation in 5.65Cross Sectional Area%CentrifugalRT4
Brinell Hardness (HB)CentrifugalRT95
0.2% Proof StressSand CastRT130
Tensile Strength (N/mm2)Sand CastRT220
Elongation in 5.65Cross Sectional Area%Sand CastRT3
Brinell Hardness (HB)Sand CastRT70
0.2% Proof Stress (N/mm2)Chill CastRT170
Tensile Strength (N/mm2)Chill CastRT310
Elongation in 5.65Cross Sectional Area %Chill CastRT2
Brinell Hardness (HB)Chill CastRT95
0.2% Proof Stress (N/mm2)ContinuousRT170
Tensile Strength (N/mm2)ContinuousRT360
Elongation in 5.65Cross Sectional Area%ContinuousRT6
Brinell Hardness (HB)ContinuousRT100
0.2% Proof Stress (N/mm2)CentrifugalRT170

Tolerances

 

OD Up to and including 4” + 1/32” – 0

Above 4” + 1/16” – 0

Above 12” + 3mm – 0

 

ID Up to and including 4” – 1/32”ID + 0

Above 4” – 1/16”ID + 0

Above 12” – 3mmID + 0

 

PB1 STOCK RANGE

 

 


 

 

 

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