Effect of grain size on yield strength ratio of SB410 steel pressure vessel steel sheet

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High-strength wear-resistant steel plates such as SB410 steel pressure vessel steel sheet are mainly used in the construction machinery industry to manufacture wear-resistant working parts and structures for excavators, loaders, bulldozers, graders, coal machines, large off-highway dump trucks, electric wheels, mining, docks, cement Equipment parts such as factories and steel mills that need to be worn and washed in the material transportation link.

Low-alloy high-strength steel grades are designed to have quite good notch toughness for their intended structural use. The applicability of the notch toughness of specific grades of low-alloy high-strength steel is either based on existing use experience or combined with the results of the impact test of notched specimens. In order to meet the very strict requirements of certain applications, some SB410 steel pressure vessel steel sheet, low-alloy high-strength steels produced have excellent notch toughness. For example, controlled hot rolling technology is usually used to produce low-alloy high-strength steel plates for the manufacture of welded line pipes. Such steel pipes need to meet the requirements of relevant standards for notch toughness.

As the thickness and hardness of SB410 steel pressure vessel steel sheet increase, the tendency to crack at the cutting edge increases. In order to prevent the SB410 steel pressure vessel steel sheet from cutting cracks, preheating should be carried out before SB410 steel pressure vessel steel sheet cutting. Special attention should be paid to preheating to make the entire SB410 steel pressure vessel steel sheet interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole SB410 steel pressure vessel steel sheet cannot be preheated, the partial preheating method can be used instead.

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The company has passed the ISO9001: 2008 quality system certification, strictly implemented the ISO9001 quality management system. Besides, we have continuously improved the after-sales service network to make every effort to provide more convenient, accurate and faster services for all customers. We will supervise the production, control the quality in the factory, Inspect the cargo before shipment, Issue the test report to sales department. From the steel prodcution to steel delivery, we always focus the whole process.