Description:

Silicon bronze is a low-lead brass alloy that is generally composed of 96 percent copper. The remainder can be made from silicon and a variety of other alloys such as manganese, tin, iron, or zinc. Silicon Bronze is known for its easy pouring ability, appealing surface finish and superior corrosion resistant properties, even when submerged in liquids and chemicals. Silicon Bronze was originally developed for the chemical industry but later expanded due to its good casting characteristics.Silicon bronze offers added strength in conjunction with the self-lubricity of silicon for excellent bearing and load properties. This is especially useful when silicon bronze is used for bearing cages, raceways and spacers specifically for the aerospace industry.

Chemical Composition

C63400
Standard: BS 1400

Copper Alloys CU SN PB ZN FE NI AL SI
C63400 Rem. 0.2 0.05 0.5 0.15 0.15 2.6-3.2 0.25-0.45

C63600
Standard:ASTM

Copper Alloys CU SN PB ZN FE NI AL SI
C63600 Rem. 0.2 0.05 0.5 0.15 0.15 3-4 0.7-1.3

C63800
Standard: ASTM

Copper Alloys CU PB ZN FE NI AL MN SI
C63800 Rem. 0.05 0.8 0.2 0.2 2.5-3.1 0.1 1.5-2.1

C64200
Standard:ASTM

Copper Alloys CU SN PB ZN FE NI AL MN SI
C64200 Rem. 0.2 0.05 0.5 0.3 0.25 6.3-7.6 0.1 1.5-2.2

C64210
Standard: ASTM

Copper Alloys CU SN PB ZN FE NI AL MN SI
C64210 Rem. 0.2 0.05 0.5 0.3 0.25 6.3-7 0.1 1.5-2

C87300
Standard:ASTM

Copper Alloys CU PB ZN FE MN SI
C87300 94 Min 0.2 0.25 0.2 0.8-1.5 3.5-4.5

C95600
Standard: ASTM

Copper Alloys CU NI AL SI
C95600 88 Min 0.25 6-8 1.8-3.2