202 Stainless Steel Roll

202 stainless steel roll hot rolling advantages: can damage the casting arrangement of the ingot, refine the grain of the steel, and eliminate the micro-arrangement of the defects, so that the steel arrangement is dense, mechanical function has been improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic to a certain extent; Bubbles, cracks and looseness formed during pouring can also be welded under the effect of high temperature pressure. Defects :1. After hot rolling, the non-metallic inclusions inside the steel (primarily sulfides and oxides, but also silicates) are laminated and stratified.

202 stainless steel coil delamination greatly worsens the function of steel tension along the thickness direction, and it is possible to present interlayer tear when the weld is shortened. The partial strain induced by weld shortening often reaches several times the strain at yield point, which is much larger than the strain caused by load. 2. Residual stress caused by uneven cooling. Residual stress is the internal self-equilibrium stress in the absence of external force. Hot-rolled section steel of various sections has this kind of residual stress. The larger the section standard of general section steel, the greater the residual stress. Although the residual stress is self-equilibrium, it still has certain influence on the function of steel member under the effect of external force. Such as deformation, stability, fatigue resistance and other aspects of the effect may occur.