Acid and alkali resistance of mild steel tube
Mild steel tube has certain acid and alkali resistance, but its corrosion resistance is relatively weak. In different acid and alkali environments, the corrosion resistance of mild steel tube is also different. Generally speaking, mild steel tube has the best corrosion resistance in neutral medium, but poor corrosion resistance in strong acid and strong alkali medium.

Reasons for acid and alkali resistance of mild steel tube
Mild steel tube can withstand the corrosion of acid and alkali medium to a certain extent, mainly because there is a layer of iron oxide film on its surface. This iron oxide film can prevent the metal inside the mild steel tube from being corroded, thereby improving the corrosion resistance of the mild steel tube. In addition, the low carbon content in mild steel tube also makes it have good corrosion resistance.

Corrosion protection of mild steel tube
Although mild steel tube has certain acid and alkali resistance, some measures still need to be taken for corrosion protection in strong acid and strong alkali medium. For example, a corrosion protection coating can be applied on the surface of the mild steel tube, or pipes of other materials can be used as substitutes.

Summary
In summary, although the acid and alkali resistance of mild steel tubes is limited, they have good corrosion resistance in neutral media, and the iron oxide film on their surface is the main source of their corrosion resistance. In strong acid and strong alkali media, some measures need to be taken for corrosion protection.