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why is stainless steel sink rusting

Jun 11, 2017

We know that the stainless steel sink is generally not rusty under normal use, but if we have a lot of inappropriate place in use, it will cause the stainless steel sink to rust and make the surface " "" Floating rust "and other phenomena, is not a lot of friends are also using stainless steel sink sink it? Stainless steel sink is not there will be rust phenomenon? Below, by the stainless steel sink manufacturers to share with you rusty stainless steel sink causes and solutions.

Stainless steel has the ability to resist atmospheric oxidation - that is, stainless steel, but also in the acid, alkali, salt medium is the ability to corrosion - that is, corrosion resistance. But its corrosion resistance is the size of its steel chemical composition itself, plus the state of each state, the use of conditions and changes in the type of environmental media. Such as 304 steel pipe, in the dry and clean atmosphere, there is absolutely excellent resistance to corrosion, but it moved to the beach area, in a large amount of salt containing sea fog, will soon rust; and 316 steel performance good. Therefore, not any kind of stainless steel, in any environment can be resistant to corrosion, no rust.


1, stainless steel surface containing other metal elements containing dust or heterogeneous metal particles of the attachment, in the humid air, between the attachment and stainless steel condensate, the two into a micro-battery, triggering the electrochemical reaction , The protective film is damaged, called electrochemical corrosion.

2, stainless steel surface adhesion of organic juice (such as vegetables, soup, sputum, etc.), in the case of water and oxygen, constitute organic acids, long time the organic acid corrosion of metal surface.

3, stainless steel surface adhesion contains acid, alkali, salt substances (such as decorative walls of alkaline water, lime water splash), causing local corrosion.

4, in contaminated air (such as containing a lot of sulfide, carbon oxides, nitrogen oxide atmosphere), in case of condensate, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.

5, the above situation can cause damage to the surface of the stainless steel protective film caused by corrosion. Therefore, in order to ensure that the metal surface is permanently bright and not corroded, we recommend that the surface of the stainless steel must be cleaned and scrubbed to remove the attachments and eliminate the external factors that cause the modification.