How to test roof seams of API 650 self-anchored tank

We can process the steel materials according to your drawing. Or if you can not make drawing, please send us API 650 self-anchored tank specific data and requirements, our technical department can make design and drawing for you, and then confirm with your technician or engineer. If all is OK, our processing center will process the steel materials according to the drawing. So no matter what size and shapes you need, we can meet demands at the most time.

The cost of mechanical cleaning for vertical storage tank, API 650 self-anchored tank is low, almost all oil can be recovered, and the quality of recovered oil is high. The cost of manual cleaning for vertical storage tank, API 650 self-anchored tank is high, the oil can not be recovered completely, and the quality of recovered oil is low. The mechanical cleaning of API 650 self-anchored tank adopts fully enclosed operation, and separates oil, water and oil sand. There is no direct discharge of oily sewage and waste gas, which will not pollute the environment.

Allowable Design Stresses
The maximum allowable design stresses for the API 650 self-anchored tank materials outlined in Q.2.1 shall be in accordance with Table Q-3.The values for the allowable design tensile stress given in Table Q-3 for materials other than bolting steel are the lesser of (a) 331/3% of the specified minimum ultimate tensile strength for the material or (b) 662/3% of the specified minimum yield strength, but they are 75% of the specified minimum yield strength for the stainless steel, nickel alloy, and aluminum materials. Allowable test stresses are based on the limitation of API 620 oil tank storage standard Q.8.1.3.