UNS C95600 Silicon-Aluminium Bronze Chemical Composition Properties, Grades, Charts and PDF Online

UNS C95600 (commonly known as Silicon-Aluminium Bronze) is a highly resistant alloy to corrosion in seawater and other saline environments characterized by extreme harshness. Its chemical structure is similar most commonly consisting of copper, aluminum, silicon, iron, nickel, manganese and zinc. This combination has outstanding mechanical properties, making it applicable as propellers, valve parts, and pump components in the marine sector. The composition of C95600 alloys varies a little, but the majority have the same resistant to corrosion and strength characteristics. Detailed compilation of tables, charts and PDFs with MMC characteristics, including tensile strength, yield strength, elongation, and hardness, can be found online, which is a great help for the choice of materials and design engineering, as MMCs are widely used in industries for applications where high strength, wear, and corrosion resistance materials are required.

UNS C95600 Silicon-Aluminium Bronze Chemical Composition And Grade Table

UNS C95600 is a bronze alloy of very high strength that also gives excellent corrosion resistance which can hence be used in marines and industrial fields. Consisting out of copper, with main additions of silicon and aluminum, this alloy has a perfect set of mechanical features, and besides, high resistance against wear and abrasion. A typical chemical composition of this alloy may range from 85-89% of copper, 4-6% of silicon, 4-6% aluminum, and other minerals like iron, nickel, and manganese present in smaller proportions. The robustness, hardness, resistance to corrosion, the property set of UNS C95600 makes it to be widely used in marine hardware, pumps, valves which are demanding.

UNS C95600 Silicon-Aluminium Bronze Composition Table
Elements Al Cu Ni Si
Min (%) 6.0 - - 1.8
Max (%) 8.0 88.0 0.25 3.30

The Advantages and Disadvantages of UNS C95600 Copper Material Properties, C95600 Properties


  • Excellent Corrosion Resistance: UNS C95600 Copper is very resistant to corrosion, especially in the marine conditions and acidic conditions, therefore, it is suitable for many applications in harsh environments.

  • High Strength: It has the mechanical properties, such as high tensile strength, yield strength, and hardness, which make it appropriate for structural applications that need strength and durability.

  • Wear Resistance: C95600 Copper is resistant to wear, which is a great advantage for applications that are exposed to friction and abrasion, such as marine hardware and valve components.

  • Thermal Conductivity: Copper has good thermal conductivity, which means it can transfer heat efficiently, thus it is a perfect choice for uses such as heat exchangers and electrical conductors.

  • Machinability: It is quite easy to make, which is good for the fabrication of complex components, thus, it is beneficial for the manufacturing processes.


  • Cost: Copper, and UNS C95600 included, can be more costly compared to other materials, thus affecting the total price of the projects or products where it is used.

  • Softness: Copper is not as strong as other metals, which may cause deformity or damage in the applications that are subjected to high loads or impact.

  • Limited Strength at Elevated Temperatures: The mechanical properties of copper, for instance, the strength, are reduced at high temperatures, and this is a factor that makes copper unsuited for high-temperature applications.

  • Susceptibility to Corrosion in Certain Environments: Copper mostly has a good corrosion resistance, but it can still corrode in some situations, such as when it is exposed to some chemicals or when the humidity is high.

  • Limited Compatibility with Certain Materials: Copper may not be able to work with some materials or environments, and this could result in the galvanic corrosion when it touches the dissimilar metals.

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Frequently Asked Questions

What is the chemical composition of UNS C95600 Silicon-Aluminium Bronze?

The chemical composition usually consists of copper (Cu) as the main element, along with large quantities of aluminum (Al), silicon (Si), and smaller parts of other elements like iron (Fe), nickel (Ni), and manganese (Mn).

What are the mechanical properties of UNS C95600 Silicon-Aluminium Bronze?

The material has good mechanical properties, which include high tensile strength, yield strength, and hardness. Besides, it has a good wear resistance and fatigue strength.

What are the standards and grades that UNS C95600 Silicon-Aluminium Bronze meets?

UNS C95600 usually meets various international standards including ASTM B505 and ASTM B271. These standards define the chemical composition, mechanical properties, and other requirements for the material.

What are the common uses of UNS C95600 Silicon-Aluminium Bronze?

Silicon-Aluminium Bronze is widely used in marine and industrial applications where corrosion resistance, high strength and wear resistance are crucial. Examples of common applications are marine hardware, valve components, pump parts, and bushings.