Steel plate by thickness, thin steel plate <4 mm (the thinnest 0.2 mm), thick steel plate 4 ~ 60 mm, extra thick steel plate 60 ~ 115 mm. Steel plate by rolling points, divided into hot-rolled and cold-rolled.
The width of thin plate is 500~1500 millimeters; the width of thick is 600~3000 millimeters. Sheet according to the steel grade, there are ordinary steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet, etc.; according to the professional use of points, there are oil drums with the plate, enameling with the plate, bullet-proof with the plate, etc.; according to the surface coating layer, there are galvanized sheet, tinned sheet, lead-plated sheet, plastic composite steel plate, etc..
Thick steel plate steel and thin steel plate is largely the same. In terms of goods, in addition to bridge steel plate, boiler steel plate, automobile manufacturing steel plate, pressure vessel steel plate and multi-layer high-pressure vessel steel plate and other varieties of thick plate, some varieties of steel plate such as automobile beam steel plate (2.5 ~ 10 mm thick), patterned steel plate (2.5 ~ 8 mm thick), stainless steel plate, heat-resistant steel plate and other varieties of steel plate is the same as the thin plate cross.
2. Profile (extrudate) is iron or steel and materials with a certain degree of strength and toughness (such as plastic, aluminum, fiberglass, etc.) through rolling, extrusion, casting and other processes made of objects with a certain geometric shape.
In accordance with the different quality of steel smelting, steel section is divided into ordinary steel and high-quality steel. Ordinary steel according to the current metal catalog is divided into large-type steel, medium-type steel, small-type steel. Ordinary steel according to its sectional shape can be divided into I-beam, channel steel, angle steel, round steel, and so on. Large steel: large steel in the I-beam, channel, angle, flat steel are hot-rolled, round steel, square steel, hexagonal steel in addition to hot-rolled, forging, cold-drawn and so on.
I-beam, channel steel, angle steel is widely used in industrial buildings and metal structures, such as factories, bridges, ships, agricultural machinery and vehicle manufacturing, power transmission towers, transportation machinery, often used in conjunction. Flat steel is mainly used as bridges, shelves, fences, power transmission, ships, vehicles and so on. Round steel, square steel used as a variety of mechanical parts, agricultural machinery parts, tools, etc..
Medium section steel: medium section steel in the work, channel, angle, round, flat steel use and large section steel is similar
Small section steel: small section steel in the angle, round, square, flat steel processing and use and large similar to the small diameter round is often used for construction steel.
3. Elbow plate is the connection between two or more members of the connection. Is also the hull structure of the largest number of a component. It can increase the rigidity of the connection node and ensure the continuity of the intersecting structure, at the same time can transfer a variety of forces, reduce the stress concentration in the joint and improve the craftsmanship of the joint.