Erection, Fabrication and Hybrid construction blog 16

 Fabrication

Fabrication use structurally by cutting, forming, machining, bending, welding, and assembling processes by site erections. Fabrication needs skilled labor for transforming raw components to market items. The process of fabrications done in site or factory according to space constraints issues and humanity and requirement. Market steels have assembled in site. The structures or membrane need to be handled carefully while transport to the site.

Steel fabrication

Stainless steel is well-known for its corrosion resistance and heat resistance. Stainless steel fabrication differs from carbon steel fabrication due to the amount of chromium present during fabrication. Steel fabrication products are used in the manufacture of a wide range of household products to large machinery parts used in aviation and automobile industries.

The steel fabrication can be segmented based on type and end-use industry. Austenitic stainless steel, super-austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, and duplex stainless steel are the different types of stainless steel. The different types of stainless steel fabrication market are classified based upon their crystalline structure. Austenitic stainless steel products are widely used as compared to other stainless steel. It comprises austenitic crystalline structure, which exhibits a face-centered cubic crystalline structure. Super-austenitic stainless steel contains high amount of molybdenum, nitrogen additions, and nickel. It reduces the sensitization effect caused by high temperatures.

Ferritic stainless steel contains lower amount of chromium and nickel. It is usually less expensive as compared to other types of stainless steel. Martensitic stainless steel is magnetic, extremely strong, tough, and machinable compared to other types of stainless steel. Duplex stainless steel has mixed composition of ferritic stainless steel and austenitic stainless steel. Other stainless steels includes precipitation-martensitic stainless steel and varieties of duplex grades stainless steel.

Erection 

It is the structural steelwork that happens in a frame on site. The process involves lifting and placing an exact position by connecting together. Connections may be achieved by bolting, welding, and sometimes riveting. erections may be achieved by two techniques such as MEWP(Mobile Elevating Work Platforms) by Mobile crane and Tower cranes. While the erection single part of steel will be shipped to prevent the damage after transport parts have been assembled in site. Weatherproofing does need while shipping steel. Long members or structures cannot be shipped due to road safety and restriction.


blog by Balaji

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