heat treatment of p355gh stock resources in BBN warehouse

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Medium and heavy plate is widely used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and other fields. The surface quality of medium and heavy plate mainly refers to its surface smoothness, surface defects, etc., which is one of the main quality indexes of medium and heavy plate. The surface quality of heat treatment of P355GH, medium and heavy plate not only affects the appearance of the products, but also reduces the corrosion resistance, wear resistance, fatigue limit and other properties of the steel plate.

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 heat treatment of p355gh 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.

SA387 Gr.91 chromium-molybdenum alloy steel plate for pressure vessels is generally used in large-scale nuclear power plants. In the medium temperature (350 ~ 480 ℃) hydrogen environment, SA387 Gr.91 steel can prevent hydrogen embrittlement, hydrogen corrosion, hydrogen peeling, and sulfide Corrosion performance. heat treatment of p355gh product is widely used in the manufacture of fertilizer, petrochemical and thermal power plant equipment, such as ammonia reactors, coal gasifiers, shift furnaces and hydrogenation reactors.