Shenzhen Shengjinlong Iron and Steel Co., Ltd.

company's product
Home > news > Content

How Much Do You Know About The Difference Between Angle Iron?

1、 They are the same information. Reinforced asbestos cement tiles are roof waterproof materials made of asbestos fiber and cement by making boards and pressing. According to the standard, there are three kinds of roof waterproof materials: large wave, medium wave and wavelet. In addition, there are herringbone back tiles matching with these three kinds of tiles to cover the roof ridge. This is an internationally recognized obsolete building material. Its harm comes from its fiber, which is a very fine fiber that can hardly be seen by the naked eye. When these fine fibers are released, they can float in the air for a long time and be inhaled into the human body. The inhaled asbestos fiber can accumulate in the human body for many years, adhere to and deposit in the lungs, and form lung diseases.
2、 Angle steel, commonly known as angle iron, is a long piece of steel with both sides perpendicular to each other. There are equilateral angle steel and unequal angle steel. The two sides of an equilateral angle are equal in width. The standard is indicated in mm of side width × side width × side thickness. Such as "∠ 30 × 30 × 3", that is to say, the edge width is 30mm and the edge thickness is 3mm. It can also be indicated by type, which is the centimeter number of side width, such as ∠ 3. The type does not indicate the dimension of different side thickness in the same type, so the side width and side thickness of angle steel shall be filled out completely in the contract and other documents, so as to prevent separate indication by type. The standard of hot rolled equilateral angle steel is 2-20
3、 The chemical composition of angle steel belongs to the rolling steel series for general structure, and the primary inspection targets are C, Mn, P and s. According to the different brands, the contents are different, the approximate scale is C < 0.22%, Mn: 0.30-0.65%, P < 0.060%, s < 0.060%.
4、 Angle steel is a kind of carbon structural steel for construction, which is a kind of simple section steel. It is mainly used in metal components and plant structure. Good weldability, plastic deformation function and certain mechanical strength are required in application. The blank for angle steel production is low carbon square billet, and the angle steel is delivered in hot rolling, normalizing or hot rolling state.
5、 Angle steel, commonly known as angle iron, its section is a long steel, both ends perpendicular to each other. Angle steel can be divided into equilateral angle steel and unequal angle steel. The same length of vertical two sides is equal angle steel, long side and short side are equal angle steel. The standard is indicated by side width × side width × side thickness mm.
The role of angle steel
Angle steel is mainly used to manufacture structural structure, such as high-voltage transmission tower, steel structure bridge girder on both sides of the structure, construction site tower hanger, arm, workshop column, beam, etc., small places such as flowerpot shaped frame are placed in the crossing section of the road, and the air conditioning and solar energy frame are hung under the window.
The manufacturing process of angle steel is relatively simple. The production process can be divided into hot rolling and cold bending. Large angle steel is hot rolled and cold bending is generally small. The standard process is to use square billet (such as square billet) to be rolled into ∨ shape by a special section rolling mill through repeated rolling for many times. The data are guaranteed, there is a transition arc in the angle, and the mechanical function is reliable. Small workshops produce by direct rolling (zigzag) plates or strips. There is no transition arc in the corner, the internal stress at the corner is large, and the tortuous function is poor. The important point is that the information is not guaranteed, even "ground reinforcement". This kind of angle steel can not be bent or welded when purchased, and can be drilled more.