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

The quality inspection department is responsible for the inspection management of raw materials and finished products, and the quality inspection and acceptance of products and raw materials. Strictly abide by the company's management system, conscientiously exercise the management power given by the company, and put an end to all ultra vires; be responsible for the inspection of all kinds of raw materials entering the company, and put forward quality problems and handling opinions.Investigation of Subgrade
On actual steel storage tank sites to be used, test borings or test pits, or both, may be made at the direction of a competent engineer who will specify the number and location. They need not be equally spaced but should be laid out to uncover possible weak spots.
In general, test loadings of subgrade at the bottom of test pits need be resorted to only when such heavy loading as may be imposed by footings for major column supports for spheres or similarly elevated API 620 low-pressure tanks is specified. Results may be deceptive if average load-bearing capacity over a considerable area is wanted. All field data shall be recorded with maps, and copies shall be supplied to all engineers concerned with design, erection, and later operation.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 tanks tank. Tap one inch NPT test hole in each pad or section.The company has always adhered to the corporate purpose of “improving benefits, creating wealth, benefiting employees, and giving back to the society”. We adhere to the corporate spirit of ""innovation, efficiency, integrity, and win-win"", attract first-class talents, strive for first-class indicators, create first-class benefits, build first-class enterprises, pursue excellence, innovative development, and efficiently serve the coordinated development of the Beijing-Tianjin-Hebei and the ""Belt and Road"" Economic development strategy.BEBON is willing to cooperate with friends from all sides for a win-win development!For the welding of API Std 650 aluminum tanks bottom, attention should be paid to the slag removal and drying of the welding joint before welding, and there is no sediment and oil contamination in the lap joint of steel plate. The manufacturing quality and production efficiency of the central plate can be obviously improved by adopting the rolling central plate. The butt joint is used between the rolling plates to improve the installation conditions of the central plate at the bottom of the API Std 650 aluminum tanks. The welding sequence of the central plate is from the center of the central plate to the surrounding.