Electroplating brass: what you need to know

pezzi meccanici in ottone

Producing high-quality precision mechanical components also requires the accurate use of electroplating. This applies to electroplating brass too. Here is what you need to know.

Focusing only on steels is not enough. Limiting precision engineering to carbon, stainless or special steels would be reductive. Industry experts exploit the advantages and disadvantages of many materials to choose the most suitable one for each type of machining and use. This also applies to brass.

Brass and precision engineering

Brass is an oxidisable alloy composed mainly of copper and zinc, sometimes enriched with other elements, and stands out for its versatility, excellent mechanical properties and attractive appearance.

When should brass be used in precision engineering? It is chosen for mechanical components that must resist corrosion, tension and wear. Experts use the properties of brass to make components for sectors such as automotive, plumbing, medical, hydraulics and more.

Electroplating brass

How is brass electroplated? The aim is to modify the material’s properties to better suit its intended use. In most cases, this means creating an additional protective layer that improves the material’s properties and ensures performance. Since brass tends to wear through use and exposure to the weather, the protective layer reduces and slows its deterioration.

Brass is treated with aqueous solutions containing bases, metal salts, specific additives and other substances at room temperature, in tanks arranged in sequence. The process includes preparing the component surfaces, depositing the metal coating and finishing. Once complete, the components are dried in annealing ovens to prevent moisture spots.

Electrochemical deposition changes the surface properties of the material both technically and aesthetically: the components become more functional, more durable and better looking. Every electroplating treatment must clearly be carried out with care and expertise to obtain high-quality brass components.