Phosphor Bronze

PB1

PB1 is a continuously cast material containing 10-12% tin and small amounts of phosphorus. It has high mechanical strength and has good conductivity and wear resistance (although wrought materials can outperform this). Also, with excellent corrosion and fatigue resistance. PB1 can be soldered and brazed.

• Hard wearing bronze containing a small amount of phosphorus
• High fatigue resistance
• High tin content reduces the risk of corrosion
• Phosphorus increases wear resistance
• Commonly used in manufacture of bearings, sleeves, thrust washers and gears

Download our current material list

Material Stocklist.pdf

Chemical Properties

-
-
Min
Max
Cu
Copper
87
89.5
Sn
Tin
10.0
11.5
Pb
Lead
-
0.25
Zn
ZInc
-
0.05
Ni
Nickel
-
0.10
P
Phosphorous
-
1.0
Al
Aluminium
-
0.01
P
Iron
-
0.1
Al
Antimony
-
0.05
P
Sulphur
-
0.05
Al
Silicon
-
0.01
-
Bismuth
-
0.05

Mechanical Properties

-
Tensile strength N/mm2
Proof strength N/mm2
Elongation % minimum
Continuously Cast (B505)
350
170*
6
Centrifugally Cast (B271)
350
170*
4
Density (g/cmᶟ) Approx
-
8.7
-