Types and specifications of angle steel

 　　It is mainly divided into two types: equal edge angle steel and unequal edge angle steel, among which unequal edge angle steel can be divided into two types: unequal edge equal thickness and unequal edge unequal thickness.

　　The specifications of angle steel are represented by the dimensions of edge length and edge thickness. The specification of domestic 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.

　　The ordering of inlet and outlet angle steel is generally based on the specifications required during use, and its steel grade is the corresponding carbon bonded steel grade. Besides the specification number, angle steel also has no specific composition or performance series.

　　The delivery length of angle steel can be divided into two types: fixed length and double length. The selection range of fixed length for domestic angle steel can be divided into 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 unequal angle steel is calculated based on the length and width of the unequal angle steel. Refers to steel with an angular cross-section and unequal lengths on both sides. It is a type of angle steel. Its side length is 25mm × 16mm～200mm × 125mm。 It is rolled by a hot rolling mill. The general specifications of unequal angle steel are: {50 * 32~{200 * 125, with a thickness of 4-18mm.



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