Passivation

What is passivation?

Passivation is the generic term applied to procedures developed to remove the presence of metallic (free) iron from the surface of stainless steel products. The presence of free iron particles on the surface of stainless steel products can cause the product to show rust spots which should not occur with a clean or "passive" stainless steel surface. A PASSIVE stainless steel surface would have NO free iron particles which could potentially corrode or "rust."  

In addition to removing heat color our weld cleaning machines simultaneously passivate.

passivation of stainless steel

What is passivation?

Passivation is the generic term applied to procedures developed to remove the presence of metallic (free) iron from the surface of stainless steel products. The presence of free iron particles on the surface of stainless steel products can cause the product to show rust spots which should not occur with a clean or "passive" stainless steel surface. A PASSIVE stainless steel surface would have NO free iron particles which could potentially corrode or "rust."  

passivation of stainless steel

In addition to removing heat color our weld cleaning machines simultaneously passivate.

Capital Weld Cleaners meets criteria set by organizations for electrochemical cleaning of stainless steel

(ASTM A967) for the process of passivation. Criteria for passivation of stainless steel depends on many factors, such as:

  • Type and grade of stainless steel
  • Type of weld
  • Environmental conditions
  • Metal contamination
  • Surface contamination

Capital Weld Cleaning machines use the cleanest safest process for cleaning and passivating welded areas.

steel passivation