Pickling and Passivation

Stainless steel owes its characteristics to a thin closed chrome-oxide layer on the surface.

Pickling is the treatment of stainless steel with acids. When pickling, the surface of the product is being cleaned and restored. Therefore, often pickling is done in preparation of an additional surface treatment. With passivating, a new oxide-layer is placed on the product

Pickling and passivating ensures a clean and stainless surface of the products. The passivated layer which is created in this process is better corrosion-resistant than the layer that naturally arises on stainless steel products.


MTRC has the facilities to clean and/or package products in our cleanroom (Grade 2,3 and 4 – surface cleanliness, ISO 7).

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Providing good quality, in all its aspects, is obvious to MTRC. Good product quality is ensured by a structured process control, but also by a thorough technical and visual inspection of the finished product.