Dr. Dmitri Kopeliovich

According to the Unified Numbering System (UNS):

Cast Silicon Bronzes (Silicon Brasses) are copper alloys, containing 3.0-4.5% of silicon (Si) and up to 20% of zinc (Zn) as major alloying elements. Cast Silicon Bronzes are designated with the numbers from C87000 through C87999.

Cast Silicon Bronzes may contain manganese (Mn) and phosphorous (P) as additional alloying elements.

Silicon Bronzes have mono-phase structure (α-phase).

Cast Silicon Bronzes have moderate mechanical strength combined with very good aqueous and atmospheric corrosion resistance and very good weldability.

Cast Silicon Bronzes are used for manufacturing decorative items, bearings, window hardware, gears, impellers, pump and valve components, plumbing fittings.

(Materials Data)

• Cast copper alloy C87400 (Silicon Bronze/Silicon Brass)
• Cast copper alloy C87500 (Silicon Bronze/Silicon Brass)
• Cast copper alloy C87600 (Silicon Bronze/Silicon Brass)
• Cast copper alloy C87850 (Silicon Bronze/Silicon Brass)

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• Cast Coppers and high copper alloys
• Cast brasses
• Cast manganese bronzes
• Cast tin bronzes and leaded tin bronzes
• Cast aluminum bronzes
• Cast copper-nickel alloys and Nickel Silvers
• Cast copper-lead alloys
• Cast copper special alloys
• Spinodal Bronzes
• Wrought silicon bronzes
• Classification of copper alloys
• Temper designation of copper alloys
• Treatment of molten copper alloys

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