API shop fabricated tanks can be produced in a variety of materials. Carbon steel tanks and stainless-steel tanks being the most common. API shop fabricated tanks can be used for various applications and are required to meet the exacting standards of the American Petroleum Institute (API). API has established standards for the design and fabrication of welded steel storage tanks for storing oil and other liquids.
Dixie Southern has decades of experience designing, fabricating, assembling, and inspecting API 620 and API 650 storage tanks.
Difference Between API-620 and API-650 Standards
API-620 Design and Construction of Large, Welded, Low Pressure Storage Tanks
Guide for construction of tanks with internal pressures up to 15 psig. For large tanks which are assembled in field and are used for storage of petroleum intermediates and petroleum products.
API-650 Welded Steel Tanks for Oil Storage
This document governs the construction of API shop fabricated tanks storing hydrocarbon products at low operating pressure (up to 2.5 psig). 
API Shop Fabricated Tank Application Examples
- Industrial Fuel Storage Tanks – these stainless-steel tanks are also known as petroleum tanks and can store a variety of fluids. They can also be fabricated in aboveground fuel tanks or underground storage tanks.
- Industrial Chemical Storage Tanks – stainless steel tanks are commonly used for this application since they are effective and durable.
Dixie Southern also serves the food/beverage processing, mining/minerals, agriculture, power generation, water/wastewater treatment, pulp/paper, waste treatment, and government with API shop fabricated tanks. Request your quote today to learn more!
- “API Standards for Tanks”