Hot rolled flat steel (GB/T702-2008)

Hot rolled flat steel is a general purpose hot-rolled strip steel with a rectangular cross-section. Flat steel can be finished steel, used for components, escalators, bridges, and fences. Flat steel can also be used as billets for welded steel pipes and slabs for laminated thin plates.

High quality structural steel cold drawn flat steel (YB/T037-2005)

High quality structural steel cold drawn flat steel is a rectangular cross-section strip steel made from high-quality carbon structural steel and alloy structural steel through cold drawing. High quality structural steel cold drawn flat steel has high dimensional accuracy, good surface quality, and superior performance. It is delivered in cold drawn or annealed, normalized, and tempered heat treatment states, mainly used for manufacturing machine structural components.

Forged flat steel (GB/T908-2008)

Forged flat steel is a long strip of steel with a rectangular cross-section that has been forged. Forging can not only obtain forgings of a certain shape and size, but also significantly improve the as-cast structure of steel and increase its density; It can change the distribution of fiber tissue, improve its strength and toughness; And it can process high carbon steel and high alloy steel with lower plasticity. Forged flat steel is mainly high-quality alloy steel, mainly used for springs, tools, and important mechanical parts.

Hot rolled wide flat steel for structural purposes (YB/T4212-2010)

Wide flat steel refers to steel with a width greater than or equal to 150mm and a thickness usually greater than 4mm, usually delivered in straight strips rather than in coils, with edges and corners.

Hot rolled wing steel for structural purposes (GB/T28299-2012)

Wing steel refers to flat steel used for welding the upper and lower flanges of I-shaped or box shaped profiles. GB/T2829-2012 is applicable to strip shaped wing steel with a thickness of 6-40mm, a width of 140-600mm, a rectangular cross-section, and hot-rolled on all four sides for structural purposes.