Alclad 6061 aluminum plate API Std 650 carbon and low-alloy steel tanks

Some defects may be found after the regular safety inspection for the API Std 650 carbon and low-alloy steel tanks. The common API Std 650 carbon and low-alloy steel tanks defects are: Tank cracks, tank welding defects. The cracks on the base metal, surface and near surface of the tank wall shall be eliminated by grinding with circular arc, and then magnetic particle inspection or re inspection shall be carried out. Cracks in heat affected zone: generally, grinding method is used to eliminate cracks, and magnetic particle or dye flaw detection is used to confirm that there is no crack, and then repair welding or grinding smooth transition.The hardness of the welds contacting these environments, including the heat-affected zones, shall be considered. The weld metal and adjacent heat-affected zone often contain a zone of hardness that is well in excess of a value of 22 on the Rockwell C scale and could be expected to be more susceptible to cracking than would unwelded metal. Any hardness criteria shall be a matter of agreement between the Purchaser and the API Std 650 carbon and low-alloy steel tanks manufacturer and shall be based on an evaluation of the expected hydrogen sulfide concentration in the product, the possibility of moisture being present on the inside metal surface, and the strength and hardness characteristics of base metal and weld metal.The advantages of API 650 floating roof tanks have obvious environmental and economic benefits: in a specific climate environment, according to historical data, the economic value of the API Std 650 carbon and low-alloy steel tanks floating roof tanks in API 650 due to the reduction of oil and gas volatilization within 3-6 months is equivalent The installation and purchase cost of the API Std 650 carbon and low-alloy steel tanks inner floating roof means that the cost of the inner floating roof can be recovered within half a year.Enterprise vision: to become a world-class innovation base and supplier of steel materials.Enterprise spirit: innovation, truth-seeking, integrity and efficiency.Core values of the enterprise: people-oriented, morality based, value creation, win-win sharing.Employee belief: have faith, can contribute; have dream, can fight; have action, can create; have value, can be happy.Employee belief: have faith, can contribute; have dream, can fight; have action, can create; have value, can be happy.For ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates, our company would issue the original mill test certificate API Std 650 carbon and low-alloy steel tanks EN 10204 3.1 for clients when arrange delivery, so that clients can trace the A573 Gr.70 plates origin easily.