steel plate

The sheet product has a flat shape, a large width-to-thickness ratio, and alarge surface area per unit volume. This shape feature brings its use charac-teristics: (1) The surface area is large, so the containment and covering abilityis strong. Products, metal structures, etc, have been widely used; (2) lt can becut, bent, stamped, welded, and made into various product components. lt isflexible and convenient to use. lt is extremely important in the automotive,aviation, shipbuilding, and tractor manufacturing sectors. Status; (3) Struc-tural parts such as section steel, steel pipe, large l-beam, channel steel, etc.,which can be bent and welded into various complex sections, are called "uni-versal steel".

The steel plate is a flat steel made by casting with molten steel and press-ing after cooling. lt is flat and rectangular, and can be directly rolled or cutfrom wide steel strips. Steel plates are divided by thickness, thin steel plates<4 mm (the thinnest 0.2 mm), medium-thick steel plates 4-60 mm, and ex-tra-thick steel plates 60-115 mm. Steel plates are divided into hot rolling andcold rolling according to rolling. The width of the thin plate is 500~1500mm;the width of the thick is 600~3000mm. Bridge steel plate, boiler steel plate,automobile manufacturing steel plate, pressure vessel steel plate andmulti-layer high pressure vessel steel plate, etc.