ThePipingMart Blog Grades C64200 Silicon Aluminum Bronze – Composition, Properties, and Uses

C64200 Silicon Aluminum Bronze – Composition, Properties, and Uses

C64200 Silicon Aluminium Bronze

Bronze is essential in various industrial applications, explicitly manufacturing marine equipment, bushings, gears, pumps, and valves. C64200 silicon aluminium bronze is a popular choice among bronze alloys because of its excellent mechanical properties, corrosion resistance, and machinability. This blog post will discuss the composition, physical and mechanical properties, uses, corrosion resistance, heat treatment, machining, and C64200 silicon aluminum bronze welding.

C64200 Composition

C64200 silicon aluminum bronze is an alloy of copper, silicon, and aluminium. The copper content ranges from 77% to 79%, while silicon and aluminum make up 2% to 3% and up to 1.5%, respectively. The alloy’s high copper content provides excellent electrical and thermal conductivity, making it a preferred material for conducting heat and electricity.

Element Content (%)
Cu 91.2
Al 7

C64200 Mechanical properties

Furthermore, the silicon and aluminum components improve the alloy’s mechanical properties, making it exceptionally durable, corrosion-resistant, and non-magnetic. C64200 silicon aluminium bronze has a tensile strength of 860 MPa, yield strength of 420 MPa, and an elongation of 25%, making it the perfect material for high-stress applications.

Properties Metric Imperial
Tensile strength 517-703 MPa 75000-102000 psi
Yield strength (depending on temper) 241-469 MPa 35000-68000 psi
Elongation at break (in 558.8 mm) 32% 32%
Machinability (UNS C36000 (free-cutting brass) = 100) 60 60
Poisson’s ratio 0.34 0.34
Elastic modulus 117 GPa 17000 ksi

C64200 Physical properties

The alloy’s physical properties make it popular in various industrial applications. C64200 silicon aluminium bronze has a density of 8.44 g/cm3 and a thermal conductivity of 38 Wm-1K-1. It has a melting point of around 1027°C, unaffected by high temperatures.

Properties Metric Imperial
Density 7.89 g/cm3 0.285 lb/in³
Melting point 983°C 1800°F

C64200 Equivalent

  • ASME SB150
  • ASME SB283
  • ASTM B124
  • ASTM B150
  • ASTM B283
  • ASTM F467
  • ASTM F468
  • SAE J461
  • SAE J463

C64200 Uses

C64200 silicon aluminium bronze has widespread applications. Due to its excellent seawater corrosion resistance, it is commonly used in manufacturing marine equipment, such as propellers, pumps, valves, and fasteners. It is also suitable for producing power transmission and distribution components, automotive valve guides, springs, gears, and bushings.

C64200 Heat Treatment

Additionally, C64200 silicon aluminium bronze is an excellent choice for applications that require heat resistance. The alloy can be heat-treated to enhance its mechanical properties and improve wear resistance, making it suitable for high-wear applications such as bearings.

C64200 Machining

C64200 silicon aluminium bronze is also easy to machine, making it a popular material for manufacturing intricate parts. The alloy can be machined to tight tolerances, providing an excellent surface finish.

C64200 Welding

Lastly, welding C64200 silicon aluminium bronze is straightforward. It can be accomplished using standard welding processes, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and resistance welding.


C64200 silicon aluminium bronze is a versatile, high-performance alloy widely used in various industrial applications. Its unique mechanical and physical properties make it ideal for high-stress situations and environments requiring excellent corrosion resistance. Additionally, its superior machinability and weldability provide a range of manufacturing options for complex parts requiring tight tolerances. Thus, C64200 silicon aluminium bronze is essential in modern industrial manufacturing.

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