PB1 Bronze
Phosphor bronze 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
Elements | Min% | Max% |
Al | 0.005 | |
Cu | Remainder | |
Fe | 0.1 | |
Ni | 0.1 | |
P | 0.5 | 1.2 |
Pb | 0.25 | |
S | 0.05 | |
Sb | 0.2 | |
Si | 0.005 | |
Sn | 10 | 12 |
Zn | 0.05 |
Property/unit | Condition | Temp | Min | Max |
Tensile Strength (N/mm2) | Centrifugal | RT | 330 | |
Elongation in 5.65ÖCross Sectional Area% | Centrifugal | RT | 4 | |
Brinell Hardness (HB) | Centrifugal | RT | 95 | |
0.2% Proof Stress | Sand Cast | RT | 130 | |
Tensile Strength (N/mm2) | Sand Cast | RT | 220 | |
Elongation in 5.65ÖCross Sectional Area% | Sand Cast | RT | 3 | |
Brinell Hardness (HB) | Sand Cast | RT | 70 | |
0.2% Proof Stress (N/mm2) | Chill Cast | RT | 170 | |
Tensile Strength (N/mm2) | Chill Cast | RT | 310 | |
Elongation in 5.65ÖCross Sectional Area % | Chill Cast | RT | 2 | |
Brinell Hardness (HB) | Chill Cast | RT | 95 | |
0.2% Proof Stress (N/mm2) | Continuous | RT | 170 | |
Tensile Strength (N/mm2) | Continuous | RT | 360 | |
Elongation in 5.65ÖCross Sectional Area% | Continuous | RT | 6 | |
Brinell Hardness (HB) | Continuous | RT | 100 | |
0.2% Proof Stress (N/mm2) | Centrifugal | RT | 170 |
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