Short · 57 s
Pickling vs Passivation: Not the Same Treatment #shorts
The one-minute version: two treatments, two targets, and an order line that still needs coverage, acceptance and responsibility.
- Format
- Short
- Published
- Duration
- 57 sec
- Language
- English
About this video
This Short is the one-minute version of the pickling-versus-passivation explainer. It describes what each treatment removes; it does not document a particular order or service condition.
English transcript
From the subtitle track delivered with the video. Refer to the video and product documentation for technical details.
Pickling vs passivation: two words that often share one line on a stainless pipe order. They are not the same treatment. Each one removes something different from the surface.
Zoom into the wall of a stainless pipe. Underneath is the base metal. Heat-related processing can leave scale on the surface.
Pickling is a chemical descaling process: its job is to remove that scale. Passivation targets something else: contaminant iron and other foreign matter on the surface. Chemical passivation treatments remove it, and ASTM A967 tests check whether they worked.
Different target, different check. A purchase line that only says pickled and passivated sounds complete. But it can leave the internal surface undefined, and the final acceptance undefined.
Watch the full explainer to see how to write the surface treatment into your enquiry.
Specify the pipe or tube for your project
Send the grade, standard, OD × wall × length, wall basis, quantity, inspection and documents with your enquiry.