Channel steel is a long strip of steel with a groove-shaped cross-section. Its specification method: such as 120 * 53 * 5, said the waist height of 120 mm, leg width of 53 mm channel steel, waist thickness of 5 mm channel steel, or 12 # channel steel. Waist height of the same channel steel, such as several different leg width and waist thickness also need to add a b c to the right of the model to distinguish, such as 25a # 25b # 25c # and so on. Channel steel shear quality on the subsequent process, especially welding quality has a greater impact, if the shear fracture at the existence of collapsed shoulders, burrs, tearing, cutting slant and other defects, will make the channel steel butt joints there is a large gap, affecting the quality of welding, especially the strength indicators

The specifications of channel steel mainly with height (h), leg width (b), waist thickness (d) and other dimensions to indicate that the current domestic channel steel specifications from 5 -40, that is, the corresponding height of 5 -1000px.

Under the same height, light channel steel is narrower, thinner and lighter than ordinary channel steel. 18 -40 for large channel steel, 5 -16 channel steel for medium-sized channel steel. Imported channels are labelled with actual specifications and relevant standards. The import and export ordering of channel steel is generally based on the specifications required in use after determining the corresponding carbon steel (or low alloy steel) steel number. In addition to the specification number, there is no specific composition and property series for channel steel.

The delivery length of channel steel is divided into two kinds of fixed feet and double feet, and the tolerance value is stipulated in the corresponding standard. The length range of domestic channel steel is divided into 5-12m, 5-19m and 6-19m according to different specifications. Imported channel steel length selection range is generally 6 -15m.

Channel steel is a long steel with groove-shaped cross-section, belonging to carbon structural steel for construction and machinery, and it is a complex section steel with groove-shaped cross-section. Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing.

Channel steel is an important part of section steel, has a wide range of applications in steel structure, municipal construction, ships and bridges, mechanical products, the use of the surface is extremely wide, but the amount of use is relatively limited. This speciality determines it to show its speciality in the steel market. Since this year's steel prices have declined sharply, some of the small and medium-sized material due to too many manufacturers, production, resulting in relatively sensitive market prices, while the channel steel due to the high concentration of production, production is stable, the price has always been stable. But recently, all over the market channel steel have different degrees of fluctuation, usually in the 50 ~ 100 yuan (per tonne), the specific price can be contacted by phone with us!