Stainless Steel

By: Willowchem  05/12/2011
Keywords: stainless steel, Chromium Oxide

What is Stainless Steel?

Stainless Steel is a generic name for a family of corrosion resistant alloys of materials containing more that 11 % Chromium. A more appropriate name for this group of materials would be “Corrosion Resistant Steel” that have various properties, according to the alloying elements and methods of production.

Corrosion resistance is obtained by the alloying elements in particular the Chromium addition through a self repairing system. The material forms a very thin layer of chromium oxide that is inert from attack in most environments. When the oxide layer is broken through what ever method the chromium within the material re-oxidates with the atmosphere, forming another resistant layer

Types of Stainless Steel

They are many grades available that generally are categorised into the 5 basic forms

  • Ferritic
  • Austenitic
  • Martensitic
  • Duplex
  • Precipitated Hardened

Keywords: Chromium Oxide, stainless steel,

Other products and services from Willowchem


Willowchem Cleaning

To restore the material to its original form, we used Wilowchem 60 to dissolve the ferric oxide contamination and a product called Willowchem Biopass to passivate the material after complete dissolution has taken place. The complete dissolution and removal of the surface contaminants was observed and all surfaces were restored to their original metallurgical condition, with a completed and fully reformed Chromium Oxide Passive layer.


Surface Finishing

In order to obtain desirable aesthetic and technically functional surfaces finishes on stainless steel the following processes are carried out:-MechanicalChemicalElectro-chemical Stainless Steel or Not?As referred to in the Stainless Steel section the name “Corrosion Resistant Steel” would be a more appropriate name used for this group of materials.