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Brass - Introduction
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Brass is an alloy of Copper & Zinc. The proportions of Copper & Zinc can be varied to create a range of Brasses with varying properties. Brass is commonly used in the manufacture of electrical, automotive and various other componentry. It is also extensively used in Architectural design, particularly for internal surfaces such as elevator doors, lighting, door hardware and many other items too numerous to list. Brass is often specified for "touch surfaces" in public areas because of the anti-microbial properties of the Copper content in the alloy.
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Benefits of Brass
Excellent formability and ease of use.
Aesthetically pleasing – Muted yellow colour that ages to a dark brown.
Versatility – Can be easily formed into a variety of products.
Fire Safe – Will not melt, burn or release toxic gases in a house fire.
Biostatic – Most bacteria cannot grow on Brass.
100% Fully recyclable. Brass has a recycling rate far higher than most industrial metals.
Available Grades of Brass Flat Rolled Product
Cartridge Brass 70% Copper/30% Zinc (70/30 Alloy Brass)
Commonly called "Cartridge Brass" because of it's use in the manufacture of ammunition, this is the most widely used Brass alloy for New Zealand manufacturers. The main attributes of this alloy are excellent ductility with a high rate of work hardening, resulting in high tensile strength. It is commonly used in forming, pressing, spinning and drawing applications.
Architectural Brass 63% Copper/37% Zinc (63/37 Alloy Brass)
This grade of Brass has a higher Zinc content resulting in increased strength with slightly decreased formability. This material is available in a Bright Finish suitable for architectural panel applications. The bright finish is normally protected during usage with a PVC protective coating that is peeled off when the manufacturing process is complete.
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