Stainless steels do not need any extra coating to increase their resistance to corrosion. However, if you need to paint it, the paint should be preceded by a careful preparation of the surface:
- First, a thorough cleaning of the surface to eliminate any grease.
- Second, preparing the surface with abrasive paper or felt and again cleaning with a solvent and then rinse with plenty of water.
- The paint should be applied after a primer depending on the type of painting.
- Do not forget to comply with the primer and varnish manufacturer's drying time.
It is recommended to follow the recommendations of the experts in painting.
Stainless steel magnetic permeability is usually very low, almost vacuum. To the point of being considered nonmagnetic but, increasing with work hardening. Sometimes it can come out in deep drawing processes
AISI 304 or AISI 316 may be used in humid environments. The election between them will depend on concentration, design and maintenance, being the latter an essential part that is not always carried out and often causes the failure of the element.
Though there are many grades of stainless steel, this enquiry was about AISI 304, which is quite common and widely used. If you wish to have more information about other grades you may follow ...
Both stainless steel grades have Molybdenum in their chemical composition. Molybdenum content gives an additional resistance in
environments with chloride content between 200 ppm and 1000 ppm ...