Cleaning, Pickling and Passivation

Chemical cleaning, descaling and passivation is done per these standards ASTM A380, ASTM A-967 Electro polishing to ASTM B912. Stainless Steel treatments to other standards by request. We chemically clean, pickle,passivate and electro polish stainless steels, high nickel and titanium alloys. Work is not limited to only pipe spools and pressure vessels as APPS can conduct routine maintenance cleaning for local council infrastructure and industrial and pharmaceutical tanks which may suffer from an effect known as “rouging”. APPS has several baths, we can accomodate any job.

Why Pickle & Passivate

Helping industry "GET IT RIGHT" – Pickling & Passivation

Mobility

APPS have modern pumping equipment and tools for any large onsite operations.

Experience

Our knowledge in stainless & other alloys comes from first-hand experience.

Environment

Here at APPS, we are always aware of our Environmental responsibilities. All waste is captured and treated in our own water treatment facility.

Facility

Our accredited pickling workshop is the largest and most modern on the East Coast of Australia. APPS has its own Water treatment facility.

Capacity

We cater for one off and very large fabrications or high volume items, even nuts and bolts. With fast turnaround times due to the number of baths

What Is Meant By Pickling and Passivation Of Stainless Steel?

Pickling is a process where a stainless steel object is subjected to some form of acid treatment. The common type acids are usually a mixture of Hydrofluoric and Nitric acid.

Passivation is the restoration by chemical means of the thin passive layer or chromium enriched oxide layer. This layer gives stainless steels its corrosion resistance.

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