Flat steel in accordance with the forging process can be divided into: hot-rolled flat steel and forged flat steel.
Hot rolled flat steel is a general purpose rectangular cross-section of the potential rolling strip steel.Its specifications to the thickness of the width of the number of millimeters, flat steel can be finished steel, for members, Fu ladder, bridges and fences.Flat steel can also be used for welding of clinging steel and billets and rolled sheets of slabs. (Material: Q215, Q235), executive standard: GB704-1988 instead of GB704-83, this standard applies to the thickness of 3 ~ 60mm, width of 10 ~ 200mm, rectangular cross-section for the general purpose hot-rolled flat steel.Delivery status: flat steel with straight delivery.Measurement method: length and length of the length of the door ruler flat steel delivery according to the theory of weight.
Forged flat steel is made by forging a rectangular cross-section of the strip of steel.Improve the density of steel; can change the distribution of fibrous tissue, remove anisotropy, improve the mechanical properties of the metal, so that the strength and toughness of steel are improved; and Low plastic can be processed high Master Steel and high alloy steel.Forged flat steel is mainly high-quality alloy steel, mainly used as springs, tools and important mechanical parts.The specifications of the forged flat steel are expressed in mm of thickness*width, and the specifications are 20mm*40mm ~ 160mm * 300mm.
