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Module 6. Materials & hardware

Surface corrosion on stainless steel is identified by

  • red rust.
  • white film.
  • black pitting.

Gibbo280490 asking:

Why is this not Red Rust? i can find nowhere that states Surface corrosion on steel is 'Black Pitting'

Community Comments (2)

J
Jordi Posts: 198 16.05.2020 / 16:53
i dont have a clue.
S
Slick Rick 88 Posts: 1 07.11.2020 / 12:05
red rust can be spotted on normal steel but on stainsless steel it's black pitting

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