CSA G40.21 Gr 38WT plates API Std 650 aluminum storage tanks

The water dissolved in the oil will be separated out from the oil stored in the API Std 650 aluminum storage tanks for a long time, and the acidic water layer will appear at the bottom of the API Std 650 aluminum storage tanks for a long time, which will accelerate the corrosion of the API Std 650 aluminum storage tanks and cause the wall thinning and even leakage. With the increase of service life, the API Std 650 aluminum storage tanks must be inspected and cleaned regularly to check the hidden danger.Test plates shall be welded using the same qualified welding procedure and electrodes that are required for the tank shell plate joints. The API 620 steel storage tank test plates need not be welded as an extension of the tank shell joint but shall be welded in the required qualifying positions. One test weld shall be made on a set of plates from each specification and grade of API Std 650 aluminum storage tanks plate material, using a thickness that would qualify for all thicknesses in the shell. Each test welded of thickness t shall qualify for plate thicknesses from 2t down to t/2, but not less than 5/8 in. For plate thicknesses less than 5/8 in., a test weld shall be made for the thinnest shell plate to be welded; this test weld will qualify plate thicknesses from t up to 2t.Test welds of each API 650 tank nozzle and manway reinforcing pad (or each section of multiple piece pad) using dry air and apply a soap solution test in the presence of Purchaser's Inspector before hydro testing the API Std 650 aluminum storage tanks tank. Tap one inch NPT test hole in each pad or section.Integrity, cooperation and innovation, positive and competitive, healthy and abundant are the company's core values. The company API Std 650 aluminum storage tanks always adhere to the "people-oriented", pay attention to improve the production skills and cultural quality of employees, by cultivating employees to carry forward excellent cultural traditions, set up the correct values, ethics and codes of conduct to improve employees' loyalty and work enthusiasm.The company always adheres to the quality policy of "Quality First, Continuous Improvement, Customer Satisfaction" and the business philosophy of "Continuous Progress, Pursuing Excellence", as always, we look forward to cooperating with you to create a new situation for common development.Steel products API Std 650 aluminum storage tanks price concessions, rich industry experience, complete varieties.