Stainless Steel Balustrades – Information about Stainless Steel Balustrades and Corrosion

June 25th, 2011  Posted at   Balustrade
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Stainless steel was discovered by Harry Brearley in England in 1913. Brearley discovered it while performing an experiment to increase the levels of chromium. Based on their experiment, 12% chromium makes the steel resistant to corrosion caused by acid.

In 1920, there are two types of stainless steel have been found to be useful and these are martenstic stainless steel and austenitic stainless steel .

Stainless steel is also known as an alloy steel usually have at least 11.5% chromium content. This material has certain qualities that will not stain and mildew compared to ordinary metals. When the alloy grade and type are not completely identified, it is known that the corrosion resistant steel.

Stainless steel has different grades and surface finishing. It has around 150 degrees. Fifteen of these grades are widely used. These models are manufactured in coils, plates, sheets, wires and tubes. Due to the qualities of stainless steel, which broke through as one of the steel, mainly used in many commercial applications.

Stainless steel balustrades are very popular and is generally considered one of the preferred materials for the balconies in marine areas. This is true to some extent, but there are some real pitfalls in this, if not known or adequately prevented, disappoint end users and manufacturers.

Almost everyone who manufactures stainless steel rust from time to time. Upsetting users, as they have paid for “stainless”. A good question for designers is, then, “How and when stainless steel rails are vulnerable to corrosion and how can they be protected?”

To address this issue, several conditions are  tested that make the stainless steel to rust. Here is a summary of the factors involved in corrosion of stainless steel and the results and conclusions to be drawn from Hitchiner testing program.

Stainless Steel Corrosion - There are two basic types of stainless steel highly resistant to corrosion, nickel-chromium austenitic steels and less corrosion resistant ferritic and martensitic steel. For special purposes, there are also stainless steel, a mixture of the two structures.

Basically, the formation of a passive oxide layer of chromium in the stainless steel handrail protects the metal from aggressive media in everyday use and its surroundings. If the stainless steel handrails and stainless steel balustrades are kept clean, do not form either corrosion product of many, many years. This emphasizes that regular cleaning of stainless steel railings is essential.

Different mechanisms can play a role in the formation of these corrosion products. In some cases, re-deposition after the dissolution of the alloy surface ion leaves the surface of the steel. Under the right conditions of humidity and heat, these ions combine with oxygen and develop a corrosion product. Redeposition of iron ions leads to the oxidation points, redeposition of chromium ions leaves a deposit of chromium oxide, are indicated by white with a matte finish on the polished steel.

A particular area of critical importance and the most responsible for the “oxidation” or spots on stainless steel balustrades are where the welds are incorporated, causing the contamination of iron. The use of processing and non-stainless steel handling equipment. This is a frequent source of contamination. Non-metallic materials in contact and lift the vacuum should be used to avoid contamination of the process.

Handling or manufacture of stainless steel equipment, use of tools is also used for non-stainless steels should be avoided. Working in factories manufacturing ‘mixed metal “, without segregation and cleaning precautions can result in contamination.

Cutting stainless steel polished steel rails or stainless steel remains of no should not be allowed to settle in stainless steel items. As soon as any of this contamination is wet, rust stains will result.

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