Train Passivation Service

Why train Passivation?

A train travelling under different atmospheric conditions is exposed to salt spray, humidity, debris, hailstones, rain, snow, etc. can affect its stainless surface integrity.

Passivation involves forcing or prompting the development of an outer layer on metal e.g., stainless steel to protect it from environmentally caused degradation.

With stainless steel, the forced passivating process involves treating all surfaces or parts with an oxidizing agent — most often citric acid — which then strips free iron from the surface by means of chemical dissolution. This leaves behind a thin oxide layer that is tightly bound to the surface of the stainless steel. The resultant chromic oxide layer is significantly more resistant to rust.

Why train Passivation?

A train travelling under different atmospheric conditions is exposed to salt spray, humidity, debris, hailstones, rain, snow, etc. can affect its stainless surface integrity.

Passivation involves forcing or prompting the development of an outer layer on metal e.g., stainless steel to protect it from environmentally caused degradation.

What Are The Benefits of Passivation?

The most significant benefit of passivation in industrial settings is the reduction of corrosion-related stress, damage to, and failure of surface, parts treated via passivating processes.

Further, passivating treatments with non-toxic Citric acid (plant-based) are
significantly more environmentally friendly and safer than other industrial cleaning and corrosion-resistance treatments. For instance, Citrisurf is already used in Australian trains. Our passivation is done to Australian Industry Standards including ASTM A967, ASTM A380, ASTM B600, and AMS 2700 standards.

What Are The Benefits of Passivation?

The most significant benefit of passivation in industrial settings is the reduction of corrosion-related stress, damage to, and failure of surface, parts treated via passivating processes.