How about steel A573 Grade 58 carbon structural steel shape charpy impact

According to the guarantee conditions of delivery, China and some countries divide the ordinary carbon steel into three categories: Class A steel, which only guarantees the mechanical properties, not the chemical compositions； Class B steel, which only guarantees the chemical compositions, not the mechanical properties; special steel (Class C steel), which not only guarantees the chemical compositions, but also the mechanical properties. Class C steel steel A573 Grade 58 carbon structural steel shape is often used to manufacture important structural parts. Density of ordinary carbon steel: 7.85 g / cm3.

Fatigue wear often occurs on the rolling or rolling and sliding friction surface of the wear-resistant plate, steel A573 Grade 58 carbon structural steel shape. Under the action of alternating stress, the soft area of the surface will produce plastic deformation. When the stress exceeds the tensile strength of the material, cracks will appear in the weak places, and the cracks will continue to expand under the effect of stress. When the crack length reaches a certain value, it will cause fracture and cause the phenomenon of pitting and spalling.

Steel production and rolling technology and equipment also pursue the continuity between processes, such as the continuous steel A573 Grade 58 carbon structural steel shape process between continuous casting and rolling mills, continuous casting slabs hot transfer hot charging, increased direct rolling, and continuous cold rolling processes. The development of controlled rolling and controlled cooling technology that combines rolling and heat treatment has played a huge role in improving the properties of rolled materials.

Both parties shall confirm the steel A573 Grade 58 carbon structural steel shape material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the steel A573 Grade 58 carbon structural steel shape steel plant.