Types of Brass Alloys

Brass alloys are generally divided into two main categories: red brass and yellow brass. The difference between them is based on the ratio of copper to zinc used in the alloy composition.

These variations in composition affect not only their appearance but also their physical properties and typical applications.

Yellow Brass

Yellow brass contains a higher proportion of zinc and a lower proportion of copper compared to red brass. This gives it a bright, golden appearance that is easy to recognize in many applications.

It is commonly used in plumbing fittings, decorative hardware, and various manufactured components where strength and appearance are both important.

Red Brass

Red brass contains a higher percentage of copper, which gives it a deeper reddish tone and improved corrosion resistance. It is often used in more demanding applications such as valves, water systems, and industrial fittings.

Identifying Brass Types

While the colour difference between red and yellow brass can often provide a general indication, accurate identification is not always straightforward.

In many cases, determining the exact alloy composition requires expert assessment or specialized testing equipment, especially when dealing with mixed or aged scrap materials.

• Red brass contains more copper and appears darker in colour.
• Yellow brass contains more zinc and has a brighter, golden appearance.
• Precise identification may require professional testing methods.