UNS C64210 Silicon-Aluminium Bronze Chemical Properties, Grade, Chart and Document

UNS C64210, as an alloy comprising silicon and aluminium, is distinguished by its exceptional corrosion resistance, high strength and endurance. The main advantage of this alloy is its ability to withstand the corrosive effects of saltwater, which is its main application in marine environments such as hardware, propellers, and underwater fittings. The composition, mainly of copper, silicon, and aluminium, collaborates to form an alloy that features excellent mechanical properties that can last even in adverse situations. Our product C64210 is in agreement with ASTM B150 class, which helps to guarantee high-quality endurance. A chemical properties chart and table, detailing the molecule formula and mechanical specifications, has been made available for reference, thus making the choice of material for application easier. Moreover, appropriate documentation, for instance material specification and test report, is the way to guarantee conformity and performance for different industrial usages.

UNS C64210 Silicon-Aluminium Bronze Chemical Composition And Grade Table

Silicon-aluminium bronze is a kind of bronze alloy (UNS C64210) which is highly resilient to corrosion and is very strong. A chemical composition consisting mainly of copper (Cu), with silicon (Si) and aluminium (Al) serving as the alloying elements is standard for this type of material. These elements might get into the surface waters in addition to the Fe, Ni, and Pb. They are found in trace amounts but could be toxic at times. This alloy is usually seen in marine surfaces, aerospace activities and many industrial areas where corrosion resistance, wear resistance and fatigue resistance are of great importance. It complies with the industry standard and performance grade which make it reliable and functional.

UNS C64210 Silicon-Aluminium Bronze Composition Table
Elements Cu Pb Sn Zn Fe Ni Al Mn Si As
Min (%) - - - - - - 6.30 - 1.50 -
Max (%) Rem 0.05 0.20 0.50 0.30 0.25 7.00 0.10 2.00 0.15

The Advantages and Disadvantages of UNS C64210 Copper Material Properties, C64210 Properties


  • Excellent Machinability: UNS C64210 Copper is easily workable, thus machining and fabricating of various components can be done without any particular difficulty.

  • Corrosion Resistance: It is the product that has a good resistance to corrosion in various environments, so it can be used in applications that are exposed to moisture and chemicals.

  • High Thermal Conductivity: The C64210 Copper has a good thermal conductivity, which allows the fast heat transfer, consequently, it is useful in heat exchangers and electrical conductors.

  • High Electrical Conductivity: This is a good electrical conductor, hence, it is suitable for electrical and electronic applications where conductivity is the main factor.

  • Versatility: UNS C64210 Copper is that it is very versatile and it can be used in a number of applications such as plumbing fixtures, valves, fittings and electrical components.


  • Low Strength: Unlike some other copper alloys, UNS C64210 Copper has low strength, which can be a limitation for its use in applications that require high mechanical strength.

  • Susceptibility to Dezincification: Also similar to other brass alloys, C64210 Copper is prone to dezincification, particularly in the hostile environments, which can weaken its structure as time goes on.

  • Cost: Copper, which also covers UNS C64210, is a bit costly compared to other materials and hence, the total price of the projects or products where it is used will be affected.

  • Softness: C64210 Copper is not so hard that it can be easily deformed or damaged, that is why, it is not suitable for applications that are subjected to high loads or mechanical stress.

  • Limited Temperature Range: Copper has good thermal conductivity, but its mechanical properties might go bad at high temperatures, thus the restrain it from being used in high-temperature applications.

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Frequently Asked Questions

What are the chemical properties of UNS C64210 Silicon-Aluminium Bronze?

The chemical properties usually comprise of high copper content along with considerable amounts of aluminum, silicon, and other trace elements. The particular composition usually differs depending on the manufacturer and the application requirements.

What grade standards does UNS C64210 Silicon-Aluminium Bronze follow?

Silicon-Aluminium Bronze C64210 matches some well-known international standards like ASTM B150, ASTM B271, and SAE J461. These standards are the ones dealing with the chemical composition, mechanical properties, and other requirements for the material.

Where can I find documents that give detailed information about UNS C64210 Silicon-Aluminium Bronze?

In-depth technical manuals, such as datasheets, material specifications, and application guides, are usually accessible from the manufacturers' websites, material databases, or industry publications. These documents are full of data about the properties of the material, instructions for processing, and its uses.

What are the common uses of UNS C64210 Silicon-Aluminium Bronze?

UNS C64210 Silicon-Aluminium Bronze is usually employed in the marine field because of its high corrosion resistance, especially in the seawater surroundings. It is also applied in different industrial sectors like valve parts, pump parts, and bushings where high strength, wear resistance, and durability are needed.