Introduction to Medium and Heavy Plate Products

 　　Medium thick plate refers to a steel plate with a thickness of 4.5-25.0mm, a plate with a thickness of 25.0-100.0mm is called a thick plate, and a plate with a thickness exceeding 100.0mm is called an extra thick plate.

　　Usage: Medium thick plates are mainly used in construction engineering, mechanical manufacturing, container manufacturing, shipbuilding, bridge construction, etc. It can also be used to manufacture various containers, furnace shells, furnace plates, bridge and automotive static steel plates, low alloy steel plates, general steel plates, boiler steel plates, pressure vessel steel plates, patterned steel plates, automotive beam steel plates, certain parts of tractors, and welding components. For the employees of medium and heavy plate industry, China Steel Spot Network is a platform that stores a large amount of steel spot resources nationwide.

　　Specific application: Steel plates for bridges: Used for large railway bridges. It is required to withstand dynamic loads, impacts, vibrations, corrosion resistance, etc., such as Q235q, Q345q, etc.

　　Shipbuilding steel plate: used for manufacturing the hull of marine and inland vessels. Require high strength, plasticity, toughness, cold bending performance, welding performance, and corrosion resistance. For example, A32, D32, A36, D36, etc. Boiler steel plate (boiler plate): used for manufacturing various boilers and important accessories. Due to working at medium temperature (below 350 ° C) and high pressure, the boiler steel plate is not only subjected to high pressure, but also subjected to impact, fatigue load, and water and gas corrosion. It is required to ensure a certain strength, as well as good welding and cold bending performance, such as Q245R. Steel plates for pressure vessels: mainly used for manufacturing pressure vessels and other similar equipment for petroleum and chemical gas separation and gas storage and transportation. Generally, the working pressure ranges from 320kg/cm2 to 630kg/cm2 at atmospheric pressure, and the temperature ranges from -20 to 450 ° C. In addition to having certain strength, good plasticity and toughness, container steel plates must also have good cold bending and welding performance, such as Q245R, Q345R, 14Cr1MoR, 15CrMoR, etc. Automotive beam steel: used for manufacturing automotive beams (longitudinal beams, crossbeams), using low alloy hot-rolled steel plates with a thickness of 2.5-120mm. Due to the complex shape of car beams, in addition to high strength and cold bending performance, good stamping performance is also required



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