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Five causes of cracks in NM400 steel plate during quenching


The main reference for structural design of steel structure engineering is the static and dynamic characteristics of the steel used under various actions, such as elasticity, plasticity, strength, toughness, fatigue and other mechanical properties. Therefore, the NM400 steel plate and so on steel used in the construction of steel structure engineering will limit its strength, plasticity, impact toughness and weldability. Steel structure engineering requires high tensile strength and yield point of steel. High yield point can reduce the cross-section of the component, so as to reduce the weight, save steel and reduce the cost. High tensile strength can increase the safety of the structure.

The toughness of NM360 wear-resistant plate is higher than that of high chromium cast iron, the wear resistance is more than three times that of high chromium cast iron, the crack sensitivity is lower than that of high chromium cast iron, and the performance price ratio is also higher. NM400 steel plate, NM360 wear-resistant plate has a wide application prospect. It is bound to replace high chromium cast iron and become the mainstream of a new generation of high wear-resistant materials.

BBN steel company establishes a sound safety management system from the following aspects: First, it is necessary to improve the safety management system. Iron and steel enterprises should improve the existing safety management system in accordance with safety management policies, laws and regulations, and formulate specific implementation plans, determine clear operating specifications, inspection requirements, evaluation standards, etc., and also add special inspection posts or department, formulate a strict inspection system to ensure that various rules and regulations and implementation plans can be effectively implemented to ensure strict management and control of security risks.

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