Stainless Steel Fabrication

Stainless steel fabrication refers to construction of metal structures by ether bending or cutting metals. Stainless steel does not corrode, rust or stain easily because it has more chromium element which create a layer of chromium oxide that prevents rust from corroding the metal.

The metal is then preferred in fabrication because it reduces replacement and repair costs of metal structures. Unlike carbon steel which rusts easily when exposed to oxygen and water to form rust (Iron (III) Oxide), stainless steel is resistant to corrosion.

In production of stainless steel, iron ore, chromium, nickel and silicon are melted together in a furnace for about 12 hours. After being melted, the blend is then cast into required shapes, heat treated, cleaned and polished ready for use. Each stainless steel metal must pass through this production process to guarantee durability and quality.

 

Passivation

Passivation is the process of removing iron from the steel surface to enhance resistance to corrosion. The process is done by submerging the metal steel in an oxidant to remove the top layer which is mainly steel. The process does not affect the effectiveness of the metal but rather it reduces the chances of the metal discolouring due to corrosion.

In addition, passivation creates a clean metal surface to facilitate painting among other processes. However, the oxidant should be removed thoroughly during the process to avoid corrosion in the crevices of the metal steel.

 

 Recycling Stainless Steel

Ideally, there are two types of scrap used in recycling i.e. reclaimed scrap (old scrap) and industrial scrap (new scrap). The old scrap includes tanks, industrial equipment, refrigerators and washing machines that have reached the end of their service life.

On the other hand, industrial scrap includes industrial returns from manufacturing industries. Although stainless steel metal is designed to serve for a long period of time, recycling may be required due to any of the following reasons:

• Due to technological advancements, the metal design may be out of fashion and replacing it with a new one could be the ideal choice
• If your product has structural weaknesses and you need to dispose the metal or replace it through recycling

 

 Architectural Uses of Steel

The metal is used in all architectural aspects, building and construction. It has been in use since 1920’s because it’s tough and long lasting. Stainless steel have been used to construct many famous buildings and bridges globally.

Petronas Twin Towers, International Gem Tower and Jim Mao building are examples of famous buildings using stainless steel in construction. Helix Bridge pedestrian bridge in Marina Bay, Singapore was constructed using stainless steel metal.

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