Silicon Bronze

Silicon Bronzes are high copper alloys with copper content of more than 96%.

The balance element is usually Silicon but more often a little Manganese, Tin, Iron or Zinc is also added. The combination of these alloys makes it one of the easiest copper based material to form/pour.

Silicon Bronzes were originally developed for chemical industry but its applications were extended to different fields because of their good casting qualities.

Properties:

Addition of Silicon in copper alloys helps improve strength and reduce the brittleness as compared to other bronze alloys.

Silicon has self-lubricating properties which exhibits excellent bearing and load properties.

They are preferred for their strength, hardness and are readily wieldable, joinable and soldered.

Silicon helps in reducing the melting temperature of the alloy and assist in improving the resistance to corrosion.

With a machinability rating between 30-60%, it can be compensated by its exceptional formability and weldability.

SILICON BRONZE INGOTS

AEPL Produces Silicon Bronze ingots as per various International specifications.

For detailed information about specific alloy, kindly click on the below mentioned respective grades.

Material
Grade
Chemical Composition
CuSi3Mn1
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) Balance - - - 0.70 - - - 2.70 - - -
Max (%) 0.05 0.20 - 1.30 0.40 0.05 - 3.20 0.05 - 0.50
C-64200
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) Balance 6.30 - - - - - - 1.50 - - -
Max (%) 7.60 0.30 0.25 0.10 0.50 0.05 0.20 2.20 - 0.09 -
C-65100
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) Balance - - - - - - - 0.80 - - -
Max (%) - 0.80 - 0.70 1.50 0.05 - 2.00 - - -
C-65500
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) Balance - - - 0.50 - - - 2.80 - - -
Max (%) - 0.80 0.60 1.30 1.50 0.05   3.80 - - -
C-87300
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) 94.00 - - - 0.80 - - - 3.50 - - -
Max (%) - - 0.20 - 1.50 0.25 0.09   4.50 - - -
C-95600
ELEMENT Cu Al Fe Ni Mn Zn Pb Sn Si P As OI
Min (%) 88.00 6.00 - - - - - - 1.80 - - -
Max (%) - 8.00 - 0.25 - - - - 3.20 - - -

Note : OI Means Other Impurities


Applications:

Silicon Bronze alloys have typical applications in the below sectors:

Electrical

Conduit Fittings, Pole Line Hardware, Rotor Bars.

Fastners

Clamps, Hinges, Nuts, Rivets, Screws.

Industrial

Pressure Vessels and Tanks, Shaftings, Welded Tanks, Welded Pressure Valves.

Marine Hardware

Hardware, Propeller Shafts.