API 650 unanchored tanks automatic welding

Allowable Design Stresses
The maximum allowable design stresses for the API 650 unanchored tanks 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.API standard 650 is typically used for carbon, stainless steel and aluminium API 650 unanchored tanks tanks located in terminals, refineries, pipelines and other process facilities. Both have different pressure and temperature parameters as well. Your choice of model will depend on you and/or your client s particular needs.In 2015, we offered 230 tons 309S and 310S stainless steel API 650 unanchored tanks plate to Vietnam fabrication company. The products are used in fabricating machine for this company. Then the customer sell the machine to south America and European market. This Vietnam company purchase more than 100 ton stainless steel from us every month.Generally speaking, the duration of the "exhalation" of the API 650 unanchored tanks is longer than that of the "inhalation" of the API 650 unanchored tanks every day. There are many factors affecting the "small breathing" loss, mainly including the following points: the change of temperature difference between day and night, sunshine time of the API 650 unanchored tanks location, open area of the API 650 unanchored tanks, atmospheric pressure, filling degree of API 650 unanchored tanks, etc. When the API 650 unanchored tanks is full of gas, the space volume is small, and the "small breathing" loss is less; if the space volume is large, the loss is also large.In addition to quality assurance, service is also important for the competition of steel suppliers. All the after-sales service personnel of the company have received professional training and assessment. The steel products supplied by our company enjoy the life-long quality problem replacement service. In the process of using our steel API 650 unanchored tanks products, if there is any problem, just contact us in time, and our after-sales service personnel will look for countermeasures and solve the problem with you as soon as possible.