Shenzhen Shengjinlong Iron and Steel Co., Ltd.

0755-89345123

215088612@qq.com

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Shenzhen Shengjinlong Iron and Steel Co., Ltd.


Contact: Mr. Wu


Contact number: 0755-89345123


Mobile: 13682609066


E-mail: 215088612@qq.com


Address: No. 06, Building A, Building Materials Market, Pingshan New District, Shenzhen


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Introduction Of Angle Steel

The angle steel can be used to form various load-bearing members according to the different needs of the structure, and can also be used as the connection between the components. It is widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, cable trench supports, power piping, busbar supports, warehouse shelves, etc.
Angle steel is a kind of carbon structural steel for construction. It is a section steel with simple section. It is mainly used for metal components and the frame of workshop. Good weldability, plastic deformation performance and certain mechanical strength are required in use. The raw steel billet for angle steel production is low carbon square billet, and the finished angle steel is delivered in hot-rolled, normalized or hot-rolled state.
Types and specifications of angle steel
It can be divided into two types: equal leg angle steel and unequal angle steel, and the unequal angle steel can be divided into two kinds: unequal side equal thickness and unequal side unequal thickness.
The specification of angle steel is expressed by side length and side thickness. At present, the size of angle steel made in China is no.2-20, and the number of centimeters of side length is taken as the number. The same angle steel often has 2-7 different side thicknesses. The actual size and thickness of both sides of imported angle steel shall be marked, and relevant standards shall be indicated. Generally, large angle steel with side length more than 12.5cm, medium angle steel between 12.5cm and 5cm, and small angle steel with side length less than 5cm.
Import and export angle steel orders are generally based on the specifications required in use, and the steel grade is the corresponding carbon steel grade. In addition to the specification number of angle steel, there is no specific composition and performance series.
The delivery length of angle steel is divided into fixed length and double length. The selection range of fixed length of domestic angle steel is 3-9m, 4-12m, 4-19m and 6-19m according to different specifications. The length of angle steel made in Japan ranges from 6 to 15 m.
The section height of unequal angle steel is calculated according to the length and width of unequal angle steel. It refers to the steel with angular cross section and unequal length on both sides. It is a kind of angle steel. Its side length is 25 mm × 16 mm · 200 mm × 125 mm. It is rolled by hot rolling mill. The general unequal angle steel specification is: ∟ 50 * 32-- ∟ 200 * 125, and the thickness is 4-18mm
Unequal angle steel is widely used in various metal structures, bridges, machinery manufacturing and shipbuilding, various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouses
Mechanical properties of angle steel
(1) Test method:
① Tensile test method. The commonly used standard inspection methods include GB / t228-87, jisz2201, jisz2241, astma370, ГОС 1497, bs18, din50145, etc.; ② bending test method. The commonly used standard inspection methods are GB / t232-88, jisz2204, jisz2248, astme290, ГОС 14019, din50111, etc.
(2) Performance index: the inspection items of angle steel performance mainly include tensile test and bending test. The indexes include yield point, tensile strength, elongation and bending qualified.
Calculated weight of angle steel
Weight per meter = 0.00785 * (side width + side width thickness) * side thickness
For example, 50 * 5 angle steel: (50 + 50-5) * 5 * 0.00785 = 3.73 (this algorithm can only roughly calculate the weight of angle steel, the actual hardware manual shall prevail!)

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