Steel introduction of the classification details

In the building materials industry, the types of steel is always dazzling, different categories of models of steel varies greatly, some only in the code of a letter difference in the performance of the steel is very different, in case you do not understand the wrong use of steel, then all may be wasted. How to recognize the different steel and their applicable places? Today, I want to introduce you to all aspects of the knowledge of steel, I hope that you can learn carefully the following relevant content at the same time can be gained.

A, according to the variety of classification

Steelmaking furnace steel is cast into billets, ingots or billets by pressure processing into steel (steel products). There are many types of steel,

Generally, they can be divided into four main categories: type, plate, pipe and wire.

1, section steel class

There are many varieties of section steel, is a solid strip of steel with a certain cross-section shape and size. According to the shape of its cross-section is divided into simple and complex cross-section of two kinds. The former includes round steel, square steel, flat steel, hexagonal steel and angle steel; the latter includes rails, I-beams, channel steel, window frame steel and profiled steel. Diameter in the ?6.5?-9.0mm? of small round steel called wire.

2, steel plate class

is a wide ratio of thickness and surface area are very large flat steel. According to the thickness of different sub-thin plate (thickness? <?4mm?), medium plate (thickness?4?-25mm?) and thick plate (thickness? >?25mm?) three kinds. Steel strip is included in the steel plate category.

3, steel pipe class

Steel pipe class is a hollow cross-section of the long steel. According to the shape of its cross-section can be divided into different round, square, hexagonal tube and a variety of shaped cross-section of steel pipe. According to the different processing technology can be divided into two categories of seamless steel pipe and welded steel pipe.

4, steel wire class

Steel wire is a wire once again cold processed products. According to the different shapes of round steel wire, flat steel wire and triangular steel wire. In addition to direct use of steel wire, but also for the production of wire rope, steel wire and other products.

Two, according to the shape of the classification

According to the shape can be divided into wire, profiles, plates, tubes, metal products five categories.

Profile? Channels? Angle steel? Square steel? Heavy rail? High-working steel, H-beam? Round steel? Unequal angles? Flat steel? Light rail? Gear steel? Hexagonal steel? Heat-resistant steel bars? Sintered round bars? Composite round steel? Square Tube? Carbon Steel? Bearing steel? Carbon steel rounds? Stainless round steel? Bearing round steel? Rectangular Tube? Spring steel

Plates? Medium and thick plate? Container plate? Medium plate? Carbonized plate? Boiler plate? Low alloy plate? Patterned plate? Cold plate? Hot plate? Cold rolled plate? Hot rolled sheet? Galvanized sheet? Galvanized sheet? Electro-galvanized coil? Manganese sheet? Stainless steel sheet? Silicon steel sheet? Color coated sheet? Colored steel corrugated iron? Galvanized coil? Hot rolled steel strip? Tubing? Welded pipes? Stainless steel pipe? Hot galvanized pipes? Cold galvanized pipes? Seamless pipe? spiral pipe? Hot rolled seamless

Metal materials? Metal materials: pig iron? Tinplate? Aluminum? Lead? Brass? tin? Zinc

Steel is an important material essential to the construction of the country, widely used, a wide range of varieties, according to the shape of the cross-section of the different, steel is generally divided into wire, profiles, plates, tubes and metal products of five categories, in order to facilitate the organization of the production of steel, ordering supply and good management, and is divided into heavy rails, light rails, large steel, medium-sized steel, small steel, steel, steel, steel cold-formed sections, high quality Section steel, wire rod, medium-thick steel plate, thin steel plate, electrical silicon steel sheet, strip steel, seamless steel pipe steel, welded steel pipe, metal products and other varieties.

Three, steel production methods introduced

Most of the steel processing is steel through pressure processing, so that the steel being processed (billet, ingot, etc.) to produce plastic deformation. According to the steel processing temperature is not steel with in order to sub-cold processing and hot processing of two kinds. The main processing methods of steel are: rolling: steel metal billet through a pair of rotating rolls gap (various shapes), due to the compression of the rolls to make the material cross-section reduced, the length of the increase in the pressure processing method, which is the production of steel is the most commonly used mode of production, mainly used for the production of steel profiles, plates, tubes. Sub-cold rolling, hot rolling.

Forging: the use of forging hammer reciprocating impact or the pressure of the press to make the billet change into our desired shape and size of a pressure processing method. Generally divided into free forging and die forging, commonly used for the production of large material, open billet and other cross-section of the larger size of the steel material.? Pulling: is already rolled metal billet (type, tube, products, etc.) through the mold hole pulling into the cross-section decreases the length increase of the processing method is mostly used as a cold working.

Extrusion: is the steel will be placed in a closed extrusion of metal in the Jane, one end of the pressure, so that the metal from the provisions of the die hole in the extrusion and get the same shape and size of the finished product of the processing method, mostly used in the production of non-ferrous metals steel.

Above we have classified the steel on the market from two aspects, they are the varieties of steel, the shape of the two major parts, and then we have a detailed and systematic introduction to the production of steel. Through the above length of the relevant content of the study, we understand that the steel includes dozens of types of large and small, they have their own characteristics, the difference between different types of steel is very large, we should pay attention to the distinction between all aspects of the steel in the daily production of life in the practical application of the characteristics of the steel in order to ensure that everything is in order.

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