Steel Rail QU70 For Railway Construction

Steel rail track should remain straight, without significant bending and twisting, and must meet the standards for local bending and twisting of light and heavy rails and their corrected deformation. In addition, the surface of the rail must be clean and smooth, without defects such as cracks, scars, scratches, and its end face must not have shrinkage marks and interlayers.

The defects allowed on the overall surface of light and heavy rails and the degree of their geometric quantities must strictly comply with the standards. At the same time, domestic rails must also meet a series of mechanical process performance and chemical composition indicators. The chemical composition and mechanical process performance of the steel rail track should be strictly inspected in accordance with the relevant standards of general steel analysis experimental methods.