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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 is used for wires (telephone and telegraph), bearings, valves, castings, and construction equipment.

C-63400

Standard: ASTM

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-63400	Rem	0.2	0.05	0.5	0.15	0.15	-	2.6-3.2	-	0.25-0.45	-	-

C-63600

Standard: BS 1400

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-63600	Rem	0.2	0.05	0.5	0.15	0.15	-	3-4	-	0.7-1.3	-	-

C-63800

Standard: BS 1400

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-63800	Rem	-	0.05	0.8	0.2	0.2	-	2.5-3.1	0.1	1.5-2.1	-	-

C-64200

Standard: ASTM

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-64200	Rem	0.2	0.05	0.5	0.30	0.25	-	6.3-7.6	0.1	1.5-2.2	-	-

C-64210

Standard: ASTM

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-64210	Rem	0.2	0.05	0.5	0.30	0.25	-	6.3-7.0	0.1	1.5-2.0	-	-

C-87300

Standard: ASTM

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-87300	94 Min	-	0.20	0.25	0.20	-	-	-	0.8-1.5	3.5-4.5	-	-

C-95600

Standard: ASTM

Copper Alloys	Cu	Sn	Pb	Zn	Fe	Ni	P	Al	Mn	Si	Sb	S
C-95600	88 Min	-	-	-	-	0.25	-	6-8	-	1.8-3.2	-	-