Angle steel has various specifications and models, mainly divided according to parameters such as side width, side thickness and length. The following is a detailed introduction to the specifications and models of angle steel:

1. Classification of angle steel

According to different materials, angle steel can be divided into three types: ordinary angle steel, low alloy angle steel and high alloy angle steel. Among them, ordinary angle steel, also known as carbon structural steel angle steel, is the most common type and is mainly used in construction, bridges, machinery manufacturing and other fields. Low alloy angle steel has better strength and toughness than ordinary angle steel and is widely used in construction, aviation, aerospace and other fields. High-alloy angle steel has the characteristics of heat resistance, corrosion resistance, wear resistance, etc., and is widely used in aviation, aerospace, nuclear industry and other fields.

2. Specifications and models of angle steel

Angle steel 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 specification model is usually expressed in millimeters of side width × side width × side thickness. It can also be expressed by model number, which is the number of centimeters of side width. The following are some common angle steel specifications and models:

Equilateral angle steel

Common specifications: such as 20×20×3, 25×25×3, 30×30×3, 40×40×4, 50×50×5, etc. The numbers here represent the side width, side width and side thickness of the angle steel respectively, in millimeters.

Large angle steel: Angle steel with a side length exceeding 160 mm, such as 160×100×10, 200×125×16, etc., usually used in large buildings and mechanical structures.

Unequal angle steel

Common specifications: such as 25×16×3, 32×20×4, 40×25×5, etc. The numbers here represent the two unequal side widths and side thicknesses of the angle steel, in millimeters.

Special specifications: According to specific needs, unequal angle steel can also be customized with special specifications to meet the use requirements in different scenarios.

3. National standard size of angle steel

The height difference of the national standard angle steel can be guaranteed to be within the range specified by the national standard, which is the national standard angle steel. The national standard size specifications of angle steel include length, which is above 125cm, between 125cm-5cm, below 5cm, etc. The same horn often has a variety of different edge thicknesses to choose from. According to the difference in side length and thickness, angle steel can be divided into large angle steel, medium angle steel and small angle steel.

4. Delivery length of angle steel

The delivery length of angle iron is divided into two types: fixed length and double length. The fixed length selection range of domestic angle steel has four ranges: 3.9m, 4.12m, 4.19m, and 6.19m according to different specifications. The length selection range of angle steel produced in Japan is 6-15m.

5. Things to note

When purchasing angle steel, in addition to paying attention to specifications and models, you also need to pay attention to factors such as its material, quality, and mechanical properties. Angle steels of different materials and manufacturing processes will differ in terms of mechanical properties, corrosion resistance and service life. Therefore, when choosing angle steel, you must purchase it in accordance with national standards to ensure that its quality and performance meet the usage requirements.