The brass Billets and
manufactured in our factories have good fluidity,
high strength, wonderful pressure tightness,
wearing quality, sound corrosion resistance,
acid fastness, machinability. They are used
in valves, pumps, impellers, supply-water
faucets, bearings, sleeves, pressure seal
casting, ordinary mechanical parts. Various
shapes can be designed as per the clients
requirement
Chemical Composition of Group A Copper Alloy
Ingots and Billets - BS 1400 1973
Name
BS
PB
- 04
Phosphors bronze
LPB1
Leaded Phosphors Bronze
LG2
85/5/5/5 Leaded Gun Metal
LG4
87/7/3/3 Leaded Gun Metal
Elements
Min
Max
Min
Max
Min
Max
Min
Max
Copper
Rem
-
Rem
-
Rem
-
Rem
-
Tin
9.7
-
6.5
8.5
4.0
6.0
6.0
8.0
Zinc
-
0.5
-
2.0
4.5
6.0
1.7
3.2
Lead
-
0.75
2.0
5.0
4.0
6.0
2.7
3.5
Phosphorous
0.5
-
0.4
-
-
0.02
-
0.02
Nickel
-
0.5
-
1.0
-
2.0
-
2.0
Iron
-
-
-
0.2
-
0.2
-
0.2
Aluminium
-
-
-
-
-
-
-
-
Manganese
-
-
-
-
-
-
-
-
Antimony
-
-
-
0.2
-
0.2
-
0.2
Arsenic
-
-
-
-
-
0.2
-
0.15
Silicon
-
-
-
-
-
-
-
-
Bismuth
-
-
-
-
-
-
-
-
Magnesium
-
-
-
-
-
-
-
-
Sulphur
Nicbium
-
-
-
-
-
-
-
-
Impurities
-
0.50
-
0.50
-
0.80
-
0.70
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