Angle steel, also known as angle iron, is a long strip of steel with two sides perpendicular to each other. There are equilateral angle steel and unequal angle steel. The width of both sides of the equilateral angle steel is equal. Its specifications are expressed in millimeters of side width × side width × side thickness.
Chinese name angle joint sheet
Foreign name Angle joint coin
Also known as angle iron
Define a long steel bar with two sides perpendicular to each other and forming an angle
Specifications are in millimeters of side width × side width × side thickness.
Angle iron is a long strip of steel with two sides perpendicular to each other. There are equilateral angle steel and unequal angle steel. The width of both sides of the equilateral angle steel is equal. Its specifications are expressed in millimeters of side width × side width × side thickness. For example, "∟30×30×3" means an equilateral angle steel with a side width of 30 mm and a side thickness of 3 mm. It can also be expressed by model number, which is the number of centimeters of side width, such as ∟3#. The model number does not indicate the dimensions of different side thicknesses in the same model. Therefore, the side width and side thickness dimensions of the angle steel should be filled in completely on the contract and other documents to avoid using the model number alone. The specifications of hot-rolled equilateral angle steel are 2#-20#. Angle steel 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. It is widely used in various building structures and engineering structures, such as roof beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouses.
Category specification editing broadcast
It is mainly divided into two types: equilateral angle steel and unequal angle steel. Among them, unequal angle steel can be divided into two types: unequal sides and equal thickness and unequal sides and unequal thickness.
The specifications of angle steel are expressed by the dimensions of side length and side thickness. Domestic angle steel specifications range from No. 2 to No. 20, with the number in centimeters of side length being the number. The same angle steel often has 2 to 7 different side thicknesses. Imported angle steel indicates the actual size and thickness of both sides and the relevant standards. Generally, those with a side length of more than 12.5cm are large angle steels, those with a side length between 12.5cm and 5cm are medium-sized angle steels, and those with a side length of less than 5cm are small angle steels.
The ordering of import and export angle steel is generally based on the specifications required for use, and the steel grade is the corresponding carbon structural steel grade. Also, apart from the specification number, angle steel does not have a specific composition and performance series.
The delivery length of angle steel is divided into two types: fixed length and double length. The fixed length selection range of domestic angle steel has four ranges according to different specifications: 3~9m, 4~12m, 4~19m, and 6-19m. The length selection range of angle steel produced in Japan is 6~15m.
The cross-sectional height of the unequal angle steel is calculated according to the long side width of the unequal angle steel. Refers to steel with an angular cross-section and unequal lengths on both sides. It is a kind of angle steel. Its side length ranges from 25mm×16mm to 200mm×125mm. Rolled by hot rolling mill. The general specifications of unequal angle steel are: ∟50*32~∟200*125, and the thickness is 4-18mm.
Application editing broadcast
Angle steel can be used to form various stress-bearing components according to different structures, and can also be used as connectors between components. It is widely used in various building structures and engineering structures, such as house beams, bridges, transmission towers, and lifting and transportation machinery. , ships, industrial furnaces, reaction towers, container racks, cable trench brackets, power piping, busbar bracket installation, and warehouse shelves, etc. Angle steel is carbon structural steel for construction. It is a simple cross-section steel material, mainly used for metal components and factory buildings. framework etc. It requires good weldability, plastic deformation performance and certain mechanical strength during use. The raw material billet for angle steel production is low carbon square steel billet, and the finished angle steel is delivered in a hot-rolled, normalized or hot-rolled state.
Zhengde Brief introduction of angle steel: Angle steel can be composed of various stress components according to different needs of the structure, and can also be used as a connector between components. 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 support installation, and warehouses shelves etc.
Types of angle steel: mainly divided into two types: equilateral angle steel and unequal side angle steel, among which unequal side angle steel can be divided into two types: unequal sides and equal thickness and unequal sides and unequal thickness.
| Sectional properties and theoretical weight of hot-rolled equilateral angle steel |
| Size(mm) |
CSA |
Theoretical Weight |
center |
consistency |
resistance…Wx |
Radius of gyration |
Double angle steel turning radius…iy…(cm) |
| Wing width |
wing |
radius |
A |
y0 |
Ix |
MAX |
MIN |
ix |
iu |
iv |
a(mm): |
| b |
t |
R |
(cm2) |
kg/m |
(cm) |
cm4 |
cm3 |
cm |
cm |
cm |
0 |
6 |
8 |
10 |
12 |
| 20 |
3 |
3.5 |
1.13 |
0.89 |
0.60 |
0.40 |
0.66 |
0.29 |
0.59 |
0.75 |
0.39 |
0.85 |
1.08 |
1.17 |
1.25 |
1.34 |
| 4 |
1.46 |
1.15 |
0.64 |
0.50 |
0.78 |
0.36 |
0.58 |
0.73 |
0.38 |
0.87 |
1.11 |
1.19 |
1.28 |
1.37 |
| 25 |
3 |
3.5 |
1.43 |
1.12 |
0.73 |
0.82 |
1.12 |
0.46 |
0.76 |
0.95 |
0.49 |
1.05 |
1.27 |
1.36 |
1.44 |
1.53 |
| 4 |
1.86 |
1.46 |
0.76 |
1.03 |
1.34 |
0.59 |
0.74 |
0.93 |
0.48 |
1.07 |
1.30 |
1.38 |
1.43 |
1.55 |
| 30 |
3 |
4.5 |
1.75 |
1.37 |
2.85 |
1.46 |
1.72 |
0.68 |
0.91 |
1.15 |
0.59 |
1.27 |
1.47 |
1.55 |
1.63 |
1.71 |
| 4 |
2.28 |
1.79 |
0.89 |
1.84 |
2.08 |
0.87 |
0.90 |
1.13 |
0.58 |
1.26 |
1.49 |
1.57 |
1.65 |
1.74 |
| 36 |
3 |
4.5 |
2.11 |
1.66 |
1.00 |
2.58 |
2.59 |
0.99 |
1.11 |
1.39 |
0.71 |
1.49 |
1.70 |
1.78 |
1.86 |
1.94 |
| 4 |
2.76 |
2.16 |
1.04 |
3.29 |
3.18 |
1.28 |
1.09 |
1.38 |
0.70 |
1.51 |
1.73 |
1.80 |
1.89 |
1.97 |
| 5 |
3.38 |
2.65 |
1.07 |
3.95 |
3.68 |
1.56 |
1.08 |
1.36 |
0.70 |
1.52 |
1.75 |
1.83 |
1.91 |
1.99 |
| 40 |
3 |
5 |
2.36 |
1.85 |
1.09 |
3.59 |
3.28 |
1.23 |
1.23 |
1.55 |
0.79 |
1.65 |
1.86 |
1.94 |
2.01 |
2.09 |
| 4 |
3.09 |
2.42 |
1.13 |
4.60 |
4.05 |
1.60 |
1.22 |
1.54 |
0.79 |
1.66 |
1.88 |
1.96 |
2.04 |
2.12 |
| 5 |
3.79 |
2.98 |
1.17 |
5.53 |
4.72 |
1.96 |
1.21 |
1.52 |
0.78 |
1.68 |
1.90 |
1.98 |
2.06 |
2.14 |
| 45 |
3 |
5 |
2.66 |
2.09 |
1.22 |
5.17 |
4.25 |
1.58 |
1.39 |
1.76 |
0.90 |
1.85 |
2.06 |
2.14 |
2.21 |
2.29 |
| 4 |
3.49 |
2.74 |
1.26 |
6.65 |
5.29 |
2.05 |
1.38 |
1.74 |
0.89 |
1.87 |
2.08 |
2.16 |
2.24 |
2.32 |
| 5 |
4.29 |
3.37 |
1.30 |
8.04 |
6.20 |
2.51 |
1.37 |
1.72 |
0.88 |
1.89 |
2.10 |
2.18 |
2.26 |
2.34 |
| 6 |
5.08 |
3.99 |
1.33 |
9.33 |
6.99 |
2.95 |
1.36 |
1.71 |
0.88 |
1.90 |
2.12 |
2.20 |
2.28 |
2.36 |
| Contact Zhengde Metal for more detailed angle steel parameter information |
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Angle steel production
Angle steel belongs to carbon structural steel for construction. It is a simple section steel, mainly used for metal components and frames of factory buildings. In use, it is required to have good weldability, plastic deformation performance and certain mechanical strength. The raw material billet for the production of angle steel is low-carbon billet, and the finished angle steel is delivered in the state of hot rolling, normalizing or hot rolling.High Strength
Adequate inventory
The specifications and inventory of angle steel are complete, expressed in dimensions of edge length and edge thickness. The specification of angle steel is 2-20, with the number of centimeters of the side length as the number. The same size angle steel often has 2-7 different side thicknesses. Imported angle steel shall be marked with the actual dimensions and edge thickness on both sides, and relevant standards shall be indicated. Generally, those with a side length of 12.5cm or more are large angle steels, those between 12.5cm and 5cm are medium angle steels, and those with a side length of 5cm or less are small angle steels.
Attention to detail
The surface quality of angle steel is stipulated in the standard, and it is generally required that there should be no harmful defects in use, such as delamination, scarring, cracks, etc.
The allowable range of geometric shape deviation of angle steel is also stipulated in the standard, generally including bending degree, side width, side thickness, top angle, theoretical weight, etc., and it is stipulated that the angle steel must not have significant torsion.
Applicable scene
Angle steel can be composed of various stress components according to different needs of the structure, and can also be used as a connector between components. 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 and warehouse shelves, etc.
Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.
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Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.
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