Stainless steel plate open plate this name is more colloquic, the actual regular open plate and the original plate should be called single rolled steel plate and shear steel plate (or continuous rolled steel plate). When the steel plate comes out of the steel mill, it is rolled. When the stainless steel plate is opened by the machine, the plate is called open plate. The stress level of the open plate is higher, so the dimensional stability is poor. With the different process parameters of open and flat operation, the internal stress distribution is also different, and there will be different bearing capacity in different directions of the vertical length. And this carrying capacity is difficult to measure using general strength indicators.