Hot Rolled Steel Angle Bar Equal Leg

Equal angles are angles with equal sides. Angle bar steel specifications are expressed in millimetres of side width × side width × side thickness. EQUAL ANGLE Steel angle bar can be composed of various stress-bearing components according to different needs of the structure, and can also be used as a connector between components.

product details

product description

Angle steel is commonly known as angle iron, is the two sides perpendicular to each other into the angle of the long steel. There are equal angle and unequal angle.

The two sides of equal angle are equal in width. Its specifications to side width × side width × side thickness in millimetres. For example, "∟30×30×3", that is to say, the side width is 30 mm, the side thickness is 3 mm equilateral angle. Can also be expressed in the model, the model is the number of centimetres of side width, such as ∟3 #.

Model does not mean that the same model of different side thickness of the size, and thus in the contract and other documents will be angle side width, side thickness of the size of the complete fill in, to avoid the separate use of the model said. The specification of hot rolled equal-edge angle is 2#-20#. Angle steel can be formed according to the different needs of the structure of a variety of different stress members, can also be used as a connection between the members.

The material and processing technology of hot rolled equilateral angle steel

Most of the raw materials of hot rolled equal leg angle come from molten steel produced by blast furnace, and after smelting in converter and electric furnace, different grades of billets are obtained, and then sent to rolling mill for hot rolling process. In the process of hot rolled profile steel, usually need to go through the dephosphorisation, a rough rolling, heating, two finishing, mechanical grinding, dimensional provisions and other processes, in order to get the products in line with the standard requirements.

Hot rolled steel angle bar is widely used in the fields of construction, machinery manufacturing and assembled building because of its strong material, easy processing, beautiful shape and other characteristics.

Among them, in the construction field, equal steel angle is mainly used for the production of components, the construction of frame structure, and the reinforcement of the enclosure structure.

In the field of machinery manufacturing, hot rolled equilateral steel can be used to manufacture machine tools, chemical equipment, mining machinery and so on.

In the assembly building, hot rolled equal angle steel is widely used in the construction of water and sewage pipes, ventilation pipes, cable bridges and other structures.

Appearance Quality

Angle surface quality in the standard has provisions, general requirements shall not exist on the use of harmful defects, such as delamination, scars, cracks and so on.

The permissible range of geometric deviation of angle steel is also stipulated in the standard, which generally includes items such as curvature, side width, side thickness, top angle, theoretical weight, etc. It is also stipulated that there shall be no significant torsion of angle steel.

Mechanical properties test methods:

1.Tensile test method. Commonly used standard test methods are GB/T228-87, JISZ2201, JISZ2241, ASTMA370, ГОСТ1497, BS18, DIN50145, etc.; ② bending test method. Commonly used standard test methods are GB/T232-88, JISZ2204, JISZ2248, ASTME290, ГОСТ14019, DIN50111 and so on.

2.Performance indexes: the test items for assessing the performance of angle steel are mainly tensile test and bending test. Indicators include yield point, tensile strength, elongation and bending pass and so on.

Common lengths

Most equilateral angles are available in six, nine or twelve metre lengths.

Special lengths

Some mills also offer special lengths of 7m, 8m and 10m.

Length summary

But not less than 6m.

Appearance quality

The surface quality of equilateral angle steel is stipulated in the standard, and it is generally required that there should be no defects that are harmful to use, such as delamination, scarring, cracks and so on.

Hot rolled angle steel bar is a very practical steel product, which has a wide range of applications in the fields of construction, machinery manufacturing and assembly building. Through the introduction and analysis of this paper, we not only understand the basic concept and processing technology of hot rolled equilateral angle steel, but also better understand its importance and advantages in practical applications.