Copper fittings, as a common pipeline material, have excellent conductivity and thermal conductivity and are widely used in various fields. However, many people have found that brass fittings will rust after being used for a period of time. Why is this? In this article, we will uncover the reasons why brass fittings are prone to rusting, to help you better understand this phenomenon.

High copper content

1. Copper content

Copper fittings contain a large amount of copper element. Copper is a metal that is easy to oxidize, and it is prone to oxidation reaction under the action of moisture and oxygen, forming copper rust.

2. Oxidation reaction

After the oxidation reaction between copper and oxygen, copper oxide, also known as copper rust, is formed, resulting in rust spots on the surface of brass pipes.

Being damp

1. Wet environment

In humid environments, brass fittings are easily corroded by water vapor, accelerating the oxidation reaction of copper and promoting the formation of copper rust.

2. Water quality issues

If the water in the pipeline contains a large amount of oxygen or oxidizing substances, it will also accelerate the rusting process of brass pipes.

Usage environment

1. Acid-base environment

In acidic or alkaline environments, brass fittings are prone to chemical corrosion, intensifying the oxidation rate of copper and leading to rusting.

2. Temperature influence

Under high temperature conditions, the oxidation reaction of brass fittings will accelerate, increasing the possibility of rusting, especially in high temperature and humidity conditions.