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Errors to be avoided when using stainless steel fasteners

Feb 08, 2018

The use of stainless steel fasteners is popular because they have excellent corrosion resistance and recyclable properties. They provide resistance to any level of use severity and have great load characteristics in hot and cold weather. However, if these fasteners are not properly handled, it may cause damage to the entire installation. When using stainless steel fasteners, you must not make some mistakes.


Select the wrong level


The most important thing to note when using stainless steel fasteners is to check the grade of the steel. 304 and 316 are two of the most commonly used stainless steel grades, which are more resistant to corrosion than any other grade on the market. For a highly corrosive environment, 316 stainless steel is a perfect fit because it provides resistance to metal oxidation.


Exposure to surface contamination


Exposed to the atmosphere, the exposed parts of stainless steel are susceptible to contamination by metal dust, which eventually leads to the formation of surface rust, resulting in gradual decay of the material inside. The most common example is the iron filler adhesion caused by the grinding of steel. Stainless steel fasteners are recommended to cover the parts during operation.


Make conditions conducive to galvanic corrosion


Galvanic corrosion occurs when two different metals and alloys contact each other to exert corrosive action. It can not only affect the stainless steel fasteners, but also physical contact with the specific fasteners of the metal. You need to investigate in detail whether galvanic corrosion may occur and to what extent it can be suppressed. The use of stainless steel tools is a wise choice because similar electropotentials do not cause corrosion. You can also use nylon washers as a barrier for isolating metals from each other.


Choose low Nickel stainless steel


It is a fact that the 200 series of stainless steel fasteners is chromium deficient, except for a higher percentage of manganese and a lower proportion of nickel. This combination is ideal for resistance to rust behavior, compared with 316 stainless steel studs provided with corrosion resistance.


Improper cleaning Plan


The life of the stainless steel fasteners depends on the cleaning time used by the equipment. If you allow the pollutant to precipitate over a long period of time, it not only becomes difficult to clean the practice, but also restores the distorted appearance of stainless steel. It is advisable to expose the surface to rainwater so that all dust particles are washed away and no damage is done to the protective coating of the steel.


Coarse Finishing


The uneven arrangement of stainless steel fasteners may allow space to prevent dust particles from being sealed, thereby destroying the protective layer of chromium oxide, thus providing the necessary anti-corrosion measures. Smoother completion eliminates particle deposition opportunities and allows for easier cleaning operations.


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