BS 7291 Brass Resists Oxidation

Brass contains copper, a metal that naturally resists oxidation. When copper interacts with oxygen, it forms a thin, stable layer of copper oxide that protects the rest of the material. This patina acts as a barrier that prevents oxygen and other corrosive agents from penetrating deeper into the fitting. Zinc, the second primary component of brass, also contributes to its antioxidation properties. The combination of copper and zinc results in an alloy that not only resists rust but also maintains its mechanical strength and performance over time.

In contrast to other metals like iron or steel, which rust and corrode when exposed to oxygen and moisture, brass forms this protective layer that stops further oxidation. This ensures that brass tube fittings remain functional and reliable, even in challenging conditions.