What Is H62 Brass
H62 brass is a high-quality copper-zinc alloy containing about 62 percent copper and 38 percent zinc. H62 brass has great corrosion resistance, mechanical strength, and workability, which is why it is used in all kinds of industrial applications. It is the equivalent of C28000 in the ASTM system.
Architectural Hardware and Decoration
H62 brass strip is used for door and window hinges, locks, latches, handles, nameplates, decorative trim, kick plates, and bathroom fixtures, where its warm color and corrosion resistance add value.
Electrical and Electronics
In electrical and electronic applications, H62 strip is used for connectors, terminals, conductive springs, RFI shielding, switch components, and battery contacts. Its electrical conductivity of about 28 percent IACS is sufficient for many electrical components while the zinc addition improves mechanical strength.
Automotive and Consumer Hardware
In automotive and transportation, H62 strip serves radiator cooling fins, heat exchanger components, decorative interior trim, lamp housings, and minor electrical components. In consumer hardware and general engineering, it is used for zippers, snap fasteners, jewelry findings, musical instrument components, stampings, washers, and springs.
Chemical Composition and Properties
The chemical composition of H62 brass is characterized by high copper content of approximately 61.5 to 63.5 percent with zinc as the principal alloying element, and trace elements such as lead, iron, and silicon in minute quantities. The alloy has a typical tensile strength of 300 to 400 MPa with elongation at break of about 40 to 60 percent, and its corrosion resistance is one of its most valued properties, with adequate resistance to dezincification for most applications.
H59 versus H62
Compared with H59, which contains about 59 percent copper and has excellent short-chip machinability but lower ductility, H62 has higher ductility for riveting, flaring, and light bending, better surface and plating consistency, and moderate dezincification susceptibility, at a slightly higher material cost. H62 is preferred for water and outdoor contact and aesthetic parts, while H59 suits high-volume lathe parts.
Frequently Asked Questions
Q: What is H62 brass?
A: A copper-zinc alloy with about 62 percent copper.
Q: What is the conductivity of H62?
A: About 28 percent IACS.
Q: What is the tensile strength?
A: 300 to 400 MPa with elongation of 40 to 60 percent.
Q: What is the ASTM equivalent?
A: C28000.
Q: Can H62 strip be machined?
A: Yes, with fair machinability for stamping, bending, and forming.
Q: What applications use H62 strip?
A: Hardware, connectors, springs, and automotive components.
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