There are many types of angle steel, which can be divided according to different classification standards. The following are some common types of angle steel:
1. Classification by material
Carbon steel angle steel: mainly composed of carbon elements and a small amount of other alloy elements, with high strength and hardness, widely used in construction, machinery manufacturing and other fields.
Alloy steel angle steel: usually add certain alloy elements, such as chromium, manganese, molybdenum, etc., to improve its mechanical properties and wear resistance.
Stainless steel angle steel: mainly composed of chromium, nickel and other elements, with corrosion resistance, often used in chemical industry, shipbuilding and other fields.
2. Classification by shape
Equilateral angle steel: the length of the two sides is equal, and the angle is usually 90 degrees. The specifications of equilateral angle steel are usually expressed in millimeters of side width × side width × side thickness, such as "∠30×30×3", which means an equilateral angle steel with a side width of 30 mm and a side thickness of 3 mm. Equal angle steel is widely used in supporting components of building structures, load-bearing components of bridges, and stable structures of transmission towers because of its regular shape and easy processing and installation.
Unequal angle steel: The lengths of the two sides are not equal. According to whether the side thickness is equal, unequal angle steel can be further divided into two types: unequal equal thickness and unequal unequal thickness. Unequal angle steel is particularly widely used in complex structures such as buildings and bridges because of its flexible and changeable shape and can better adapt to the load requirements in different directions.
Flat steel: An angle steel with a rectangular cross-section, mainly used for manufacturing mechanical parts, tools and cold bending.
Center angle steel: An angle steel with a specific center angle, usually customized according to specific needs.
3. Classification by specification
Standard angle steel: The specifications meet national or industry standards and are often used in general structural engineering.
Non-standard angle steel: Suitable for some special engineering needs, and its specifications and dimensions can be customized according to customer requirements.
4. Classification by processing technology
Hot-rolled angle steel: formed by hot rolling process at high temperature, with rough surface, but with high strength and toughness, can meet the load-bearing requirements of large building structures and heavy equipment. Widely used in construction, bridges, shipbuilding and other fields.
Cold-drawn angle steel (or cold-rolled angle steel): formed by cold processing process, with smooth surface and precise size, suitable for precision machinery manufacturing and bicycles, motorcycles and other fields. Its exquisite appearance and excellent processing performance are deeply loved by users.
5. Classification by surface treatment
Angle steel can be divided into hot-dip galvanized angle steel, electro-galvanized angle steel, painted angle steel, etc. according to surface treatment. Hot-dip galvanized angle steel refers to immersing the angle steel in molten zinc liquid at high temperature, so that a layer of zinc layer is attached to the surface of the angle steel, which has good anti-corrosion performance; electro-galvanized angle steel refers to using the angle steel as an anode to deposit a layer of zinc on the surface through electrolysis; painted angle steel refers to coating the surface of the angle steel with a layer of paint or other anti-corrosion coating to achieve the purpose of anti-corrosion.
6. Classification by angle
Angle steel can be divided into 45-degree angle steel, 90-degree angle steel and 135-degree angle steel according to angle. 45-degree angle steel means that the angle between the two sides is 45 degrees; 90-degree angle steel means that the angle between the two sides is 90 degrees; 135-degree angle steel means that the angle between the two sides is 135 degrees.
In addition, there are some special types of angle steel, such as high-strength angle steel, low-alloy angle steel, etc. These angle steels are usually designed and produced according to specific application scenarios and needs.
1. Classification by material
Carbon steel angle steel: mainly composed of carbon elements and a small amount of other alloy elements, with high strength and hardness, widely used in construction, machinery manufacturing and other fields.
Alloy steel angle steel: usually add certain alloy elements, such as chromium, manganese, molybdenum, etc., to improve its mechanical properties and wear resistance.
Stainless steel angle steel: mainly composed of chromium, nickel and other elements, with corrosion resistance, often used in chemical industry, shipbuilding and other fields.
2. Classification by shape
Equilateral angle steel: the length of the two sides is equal, and the angle is usually 90 degrees. The specifications of equilateral angle steel are usually expressed in millimeters of side width × side width × side thickness, such as "∠30×30×3", which means an equilateral angle steel with a side width of 30 mm and a side thickness of 3 mm. Equal angle steel is widely used in supporting components of building structures, load-bearing components of bridges, and stable structures of transmission towers because of its regular shape and easy processing and installation.
Unequal angle steel: The lengths of the two sides are not equal. According to whether the side thickness is equal, unequal angle steel can be further divided into two types: unequal equal thickness and unequal unequal thickness. Unequal angle steel is particularly widely used in complex structures such as buildings and bridges because of its flexible and changeable shape and can better adapt to the load requirements in different directions.
Flat steel: An angle steel with a rectangular cross-section, mainly used for manufacturing mechanical parts, tools and cold bending.
Center angle steel: An angle steel with a specific center angle, usually customized according to specific needs.
3. Classification by specification
Standard angle steel: The specifications meet national or industry standards and are often used in general structural engineering.
Non-standard angle steel: Suitable for some special engineering needs, and its specifications and dimensions can be customized according to customer requirements.
4. Classification by processing technology
Hot-rolled angle steel: formed by hot rolling process at high temperature, with rough surface, but with high strength and toughness, can meet the load-bearing requirements of large building structures and heavy equipment. Widely used in construction, bridges, shipbuilding and other fields.
Cold-drawn angle steel (or cold-rolled angle steel): formed by cold processing process, with smooth surface and precise size, suitable for precision machinery manufacturing and bicycles, motorcycles and other fields. Its exquisite appearance and excellent processing performance are deeply loved by users.
5. Classification by surface treatment
Angle steel can be divided into hot-dip galvanized angle steel, electro-galvanized angle steel, painted angle steel, etc. according to surface treatment. Hot-dip galvanized angle steel refers to immersing the angle steel in molten zinc liquid at high temperature, so that a layer of zinc layer is attached to the surface of the angle steel, which has good anti-corrosion performance; electro-galvanized angle steel refers to using the angle steel as an anode to deposit a layer of zinc on the surface through electrolysis; painted angle steel refers to coating the surface of the angle steel with a layer of paint or other anti-corrosion coating to achieve the purpose of anti-corrosion.
6. Classification by angle
Angle steel can be divided into 45-degree angle steel, 90-degree angle steel and 135-degree angle steel according to angle. 45-degree angle steel means that the angle between the two sides is 45 degrees; 90-degree angle steel means that the angle between the two sides is 90 degrees; 135-degree angle steel means that the angle between the two sides is 135 degrees.
In addition, there are some special types of angle steel, such as high-strength angle steel, low-alloy angle steel, etc. These angle steels are usually designed and produced according to specific application scenarios and needs.
