What We Do


Whizz steel specializes in the engineering, fabrication and erection of large diameter and volume crude oil storage tanks. Our highly qualified engineering specialists help you to choose the tank configuration based on your specific requirements and process design. We can design tank drawing for you. And you may also send us drawing, and we will arrange production according to your drawing.


API 650

API 650, API STD 650 Welded Tanks for Oil Storage, is the most widely used standard for global tank construction and procurement. API 650 tank is commonly used for oil, gasoline, diesel, chemical and production water storage.

API 650 tanks are located in refineries, docks, pipelines and production facilities throughout the United States. API 650 specifies the design, processing, welding, inspection and installation procedures for storage tanks.

API 620

API 620 Design Standard is a specification for design and construction of large, welded, low pressure storage tanks. API 620 tanks are used for products which have high internal pressure such as liquefied natural gas (LNG) and cryogenic tanks.

API 620 tanks can store contents at a higher pressure (maximum 15 pounds per square inch (PSI) of gas or vapor storage) and lower temperature (-325 degrees F to 250 degrees F) than API 650.

About us

Construction of Oil Tank Roof

Automatic submerged arc welding

Installation of floating tank skeleton

Contact Us

New York 5870 clarity

+86 371 86151825

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