Quality Carbon Structural Steel Hot Rolled Steel Plates and Wide Steel Bands (GB/T711-1988)
Quality Carbon Structural Steel (hereinafter referred to as QCS Steel) Hot Rolled Steel Plates and Wide Steel Bands (hereinafter referred to GB/T711-1988) are one of the basic types of steel material recognized by the standards of the Peoples Republic of China (hereinafter referred to as PRC).
QCS Steel Hot Rolled Steel Plate and Wide Steel Bands are mainly used in mechanical structures of buildings, engineering machinery and automobiles, etc. Most popular grades of QCS Steel Hot Rolled Steel Plate and Wide Steel Bands are CS, 16Mn, St37-2, St52-3, 16MnDR, and Q345.
QCS Steel Hot Rolled Steel Plate and Wide Steel Bands are made through the process of hot rolling, whose object is to reduce the thickness of the material, making it in the range of 5mm-200mm. While for the width, generally it is in the range of 800-1650mm.
They are both used for wide applications in almost every industrial field.
General requirements for QCS Steel Hot Rolled Steel Plate and Wide Steel Bands must meet the requirements of GB/T711-1988. It specifies the main parameters and technical requirements for hot rolling of plain carbon structural steel, ordinary and high quality steel, wear-resistant steel, alloy steel and special heat treatment structural steel to be supplied by the manufactures involved.
GB/T711-1988 mainly stipulates the requirements of chemical composition, mechanical properties and surface quality as well as inspection, testing and sampling procedures as below.
Chemical composition requirements in GB/T711-1988 means that the total content of Mn, Si, and Cr are limited to 0.25%, 0.45% and 0.25%, respectively, while the rest of elements must meet the respective requirements.
Mechanical properties requirements mark the rigidity and plasticity of the steel hot rolled plates and wide steel bands. Tensile strength, yield strength and elongation must meet the specified requirements accordingly. For example, if the batch of QCS Steel Hot Rolled Steel Plate and Wide Steel Bands have the same number of steel grade, then the total tensile strength must be not lower than its specified value. It is usually between 400N/mm2 and 2000N/mm2.
Surface quality indicates the cracks and creases as well as the appearance of steel hot-rolled plates and wide steel bands. GB/T711-1988 restricts the size, quantity, shape and distribution of crack and crease, as well as scum and pit on the surface of steel Hot Rolled Steel Plates and Wide Steel Bands. It also identifies the conditions of the surface’s black-and-white outlook.
In addition, GB/T711-1988 also stipulates inspection and testing that includes the type of test specimen, methods of sampling and testing, etc. Depending on different products, sampling and inspection can also be conducted during the process.
By meeting the requirements of GB/T711-1988, QCS Steel Hot Rolled Steel Plate and Wide Steel Bands are of high quality and have strong bearing capacity. Thus, they have won praises from both domestic and foreign customers.
In conclusion, QCS Steel Hot Rolled Steel Plate and Wide Steel Bands are of excellent quality and providing reliable services. It is highly recommended to pick them if you are in need.
