Dec 25, 2025 Leave a message

Chemical Composition and Standards of H62 Copper Alloy

What Is H62 Copper Alloy

H62 copper alloy, characterized by an average copper content of 62 percent, is classified as a standard brass. It is a composition that integrates other elements into the traditional brass matrix, resulting in what is often referred to as special brass. The amalgamation of copper and zinc provides H62 with excellent electrical conductivity and ductility, while the presence of zinc contributes to its durability and structural integrity.

Chemical Composition Standards

The chemical composition standards for H62 copper alloy are copper 60.5 to 63.5 percent, iron 0.15 percent maximum, lead 0.08 percent maximum, antimony 0.005 percent maximum, bismuth 0.002 percent maximum, phosphorus 0.01 percent maximum, zinc as balance, and total impurities 0.5 percent maximum.

Physical Properties

Density is approximately 8.5 g per cubic centimeter, melting point is 905 to 910 degrees C, thermal conductivity is 116 W per meter per Kelvin, electrical conductivity is 28 percent IACS, Brinell hardness is 55 to 75 HB, Vickers hardness is approximately 60 to 80 HV, and elongation rate is 30 to 40 percent.

Characteristics

H62 is known for exceptional machinability, allowing ease of processing in operations such as extrusion, drawing, stamping, and casting. It exhibits significant tensile strength, making it ideal for components that must withstand substantial stress and loads. It displays commendable resistance to corrosion in both atmospheric and aqueous environments, and with high electrical conductivity it is an excellent choice for connectors, plugs, and sockets.

Applications

H62 is widely used in architectural hardware accessories such as door handles, hinges, and locks. In electronics and electrical engineering, it is prevalent in wiring, cables, connectors, and terminals. In mechanical components, it produces bushings, sleeves, and gears. The alloy is advantageous for marine components such as ship window fittings and decorative railings, and it finds utility across electronics, hardware, mechanical, and marine applications.

Frequently Asked Questions

Q: What is the copper range in H62?

A: 60.5 to 63.5 percent.

Q: What is the conductivity of H62?

A: 28 percent IACS.

Q: What is the density?

A: About 8.5 g per cubic centimeter.

Q: What is the melting point?

A: 905 to 910 degrees C.

Q: What standard governs H62 composition?

A: GB/T 5231.

Q: What applications use H62?

A: Hardware, connectors, bushings, and marine fittings.

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