NONOX World

Austenitic stainless and acid-resistant steels belong in the category of active corrosion protection thanks to their alloying materials. Even so, they can corrode in practice. Rust contamination, surface, local, contact, stress and mechanical corrosion, and how to guard against each.

Protective coatings only protect while they remain intact. The other fundamental method of protection against corrosion is alloying, thanks to which stainless and acid-resistant steels came into being. From iron-carbon alloys to the welding and standardisation of A2 and A4 grades.

By definition, corrosion is the destruction of metals by an electrochemical process. In a dry medium iron does not rust, yet corrosion causes an estimated HUF 50 billion of damage a year in Hungary. Local cells, protective coatings, galvanising and cathodic protection explained.

Iron is an important element of living organisms and one of our most heavily used industrial materials, especially its alloy with carbon: steel. From classification and the effect of carbon to the alloying elements behind corrosion-resistant and acid-resistant grades, here is what shapes the properties of steels.

Structural steels. Materials such as steel are things we encounter primarily in practice, as users, so it is worth discussing some of their properties on the basis of their fields of application. Non-alloy structural steels are usually supplied in the hot-rolled or forged condition.