A106B Steel Sheet 10mm Thick GB 15mm Mild Steel Plate Customized

Cold Rolled Carbon Steel Plates A106B Mild Carbon Steel Sheets 15mm 10mm Thickness Hot Rolled Steel Plate

When cold rolled steel plate is used for parts forming, it is required that the plastic deformation of the material is large, and the surface shall be free of wrinkles, cracks, etc. Different grades of steel plates are used for different parts. For example, Japanese standards for automobile steel plates are divided into three categories. The first category (SPCC) is ordinary cold-rolled steel plate, which is usually rolled by boiling steel, the second category (SPCD) is rolling steel plate, and the third category (spce or spcen) is cold-rolled steel plate for deep drawing.
In the past, boiling steel was limited to unimportant stamping parts due to its large component segregation, unstable performance and sensitive aging. If the aging free aluminum killed steel is used, the cost is 10-20% higher than that of ordinary boiling steel. In the past, finishing cold rolling was used to suppress the aging effect of boiling steel plate, but in fact, it only delayed the occurrence of aging. All countries are studying new improvement methods. The loose coil annealed steel plate (o.c.a) developed by the United States is a special annealed steel plate made of boiling steel in an atmosphere containing water vapor and hydrogen. As the annealed steel plate in this atmosphere can remove the solid solution and carbide in the steel, the aging sensitivity is suppressed, and the steel plate is further softened. At the same time, due to the growth of recrystallized grains, the components of {111} collective crystal arrangement parallel to the surface of the steel plate increase. According to the research of American Armco Steel Co., Ltd., this is related to improving the plastic deformation anisotropy of steel plates, which improves the stamping formability of steel plates. 84 in recent years, based on the loose coil annealed steel plates, the United annealing method (u.a.d) has been developed. This is to weld several coils of steel plates into one coil and install them in a special annealing furnace for decarburization treatment. Its advantages are lower than the loose coil annealing cost, The steel plates thus treated have been widely used in cold rolled steel plates for drawing.