Standard Specification for Copper-Silicon Alloy Plate, Sheet, Strip, and Rolled Bar for General Purposes and Pressure Vessels
This specification details the requirements for copper-silicon alloy plate, sheet, strip, and rolled bar for drawing, forming, stamping, bending, and general engineering applications, and for pressure vessel applications. The alloys involved are copper alloys UNS Nos. C65100, C65400, and C65500. The chemical composition for each copper alloy UNS No. designation is specified. The requirements for tensile property, Rockwell hardness and grain size are specified for all tempers of rolled, annealed, and hot-rolled materials. Requirements for the black, plain pickled, specially cleaned, and sand blasted finishes are provided.

1. C65100, also known as Low-Silicon Bronze, is a copper alloy primarily composed of copper (Cu) and silicon (Si). With a silicon content of approximately 2%, it offers excellent resistance to corrosion and high temperatures. This material exhibits good electrical conductivity, moderate strength, and exceptional formability. C65100 is commonly used in applications requiring electrical connectors, terminals, and switchgear components due to its favorable combination of electrical and thermal properties.

1. C65400, known as Silicon Bronze, is a copper alloy consisting of copper (Cu), silicon (Si), and small amounts of zinc (Zn). It possesses excellent corrosion resistance, specifically in marine environments. With good weldability and moderate strength, C65400 is suitable for applications such as decorative hardware, marine hardware, and architectural elements. This material is also valued for its aesthetic appeal, making it a popular choice for artistic and ornamental applications.

1. C65500, also called High-Silicon Bronze, is a copper alloy primarily composed of copper (Cu) and silicon (Si) with a higher silicon content than C65100. This alloy exhibits superior resistance to corrosion, particularly in harsh environments containing seawater or chemical solutions. C65500 possesses high strength, excellent hot workability, and good casting properties. It finds applications in marine hardware, pump components, valve bodies, and other equipment that requires exceptional corrosion resistance and mechanical strength.

1. C61300, known as Aluminum Bronze, is a copper alloy comprising copper (Cu) and aluminum (Al), with small additions of iron (Fe) and nickel (Ni). This alloy offers excellent corrosion resistance, high strength, and remarkable wear resistance. With good machinability, C61300 is used in various applications such as bushings, bearings, gears, and valve components. Its exceptional mechanical properties make it suitable for heavy-duty industrial equipment subjected to high loads and abrasive environments.

1. C61400, also called Aluminum Bronze, is a copper alloy primarily composed of copper (Cu) and aluminum (Al), with small amounts of iron (Fe) and nickel (Ni). It exhibits similar properties to C61300, including excellent corrosion resistance, high strength, and exceptional wear resistance. C61400 is commonly utilized in applications such as pump components, valve stems, and marine hardware. Its combination of strength, corrosion resistance, and machinability makes it ideal for critical components in various industries.

1. C17000, known as Beryllium Copper, is a copper alloy comprising copper (Cu) and beryllium (Be). It offers exceptional strength, good electrical conductivity, and high thermal conductivity. C17000 exhibits excellent spring properties, making it suitable for electrical connectors, switches, and various spring applications. Additionally, its resistance to fatigue, wear, and corrosion expands its use in aerospace, automotive, and oil and gas industries, where reliability and performance are essential.

1.C17200, also called Beryllium Copper, is a copper alloy primarily composed of copper (Cu) and beryllium (Be). It possesses similar characteristics to C17000, including high strength, excellent electrical and thermal conductivity, as well as good spring properties. C17200 is commonly utilized in electrical connectors, switches, and springs that require high reliability and performance. Its superior mechanical properties, combined with resistance to corrosion and fatigue, make it a preferred choice in demanding environments such as aerospace and automotive applications.

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