Angle iron is a kind of profiles. Angle iron, also known as angle steel, is a long strip of steel whose sides are perpendicular to each other. There are equilateral angle iron and unequal angle iron. The two sides of the equal-angle iron are equal in width, and the two sides of the unequal-angle iron are unequal in width.
The specification of angle iron is expressed in millimetres of edge width * edge width * edge thickness. For example, "40 *40 *3" means equal-edge angle steel with a width of 40 mm and a thickness of 3 mm. It can also be expressed as the number of centimeters of the edge width, such as 4#.
Where are corner iron commonly used? Angle iron is widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, and warehouse shelves. Equilateral angle iron is more widely used than unequal angle iron, so the price of unequal angle iron is higher than that of equilateral angle iron.
The delivery length of angle iron can be divided into two types: fixed length and double length. The selection range of domestic angle iron is 3-9m, 4-12m, 4-19m and 6-19m according to different specifications. The surface treatment of angle steel is galvanized, which makes its service life longer.