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75 ft in diameter API620 oil tank qualification of welding procedure

75 ft in diameter API620 oil tank qualification of welding procedure

75 ft in diameter API620 oil tank qualification of welding procedure

The chemical composition analysis of SA516Gr65: carbon C is not more than 0.29, manganese Mn is not more than 0.85-1.2, phosphorus P is not more than 0.035, sulfur S is not more than 0.035, and silicon Si is not more than 0.15-0.4.
75 ft in diameter API620 oil tank, SA516Gr65 pressure vessel steel has sufficient strength and toughness, good welding performance and hot and cold workability. SA516Gr65 is used to manufacture petrochemical, gas separation and gas storage and transportation equipment.

Design of Compression-ring Regions
In this project, a cylindrical tank 30 ft in diameter is designed for an internal pressure of 5 lbf/in.2 gauge in the vapor space. The plate material is ASTM A131 Grade A steel for thicknesses of 1/2 in. and less. The top course of the butt- welded cylindrical sidewall is 1/4 in. thick, including a 1/16 in. corrosion allowance. The tank 75 ft in diameter API620 oil tank roof is a butt-welded spherical dome with an internal radius of 30 ft and a thickness of 1/4 in., including a 1/16 in. corrosion allowance. The maximum design liquid level is 6 in. below the plane of the juncture of the roof and sidewall.

API was established in 1919. It is the first national-level business association in the United States. It is one of the earliest and most successful chambers of commerce in the world to formulate standards. An important task of API 75 ft in diameter API620 oil tank is to be responsible for API 650 oil storage tanks and natural gas. Standardization of industrial equipment to ensure the safety, reliability and interchangeability of equipment used in the industry.

The company has accumulated rich experience in long-term cooperation with new and old customers, which makes our products 75 ft in diameter API620 oil tank more unique in the same industry, and is favored and praised by users. We always adhere to the enterprise spirit of "integrity, dedication, and people-oriented" and the business philosophy of "creating benefits for users". As a leading international steel supplier, BEBON have two warehouses which are near by Tianjin port and Shanghai port.

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