Q390D carbon steel plate sheet material performance

The mechanical properties of Q390D carbon steel plate sheet, Q690E plate:The thickness of Q690E plate is not more than 50mm, the yield strength is not less than 690MPa, the tensile strength is 770-940, and the elongation after fracture is not less than 14.The thickness of Q690E plate is 50mm-100mm, the yield strength is not less than 650MPa, the tensile strength is 760-930, and the elongation after fracture is not less than 14.The thickness of Q690E plate is 100mm-150mm, the yield strength is not less than 630MPa, the tensile strength is 710-900, and the elongation after fracture is not less than 14.

As soon as the grains of the steel sheet become coarse, the forming limit decreases. The total elongation, n value and r value in the mechanical properties of the Q390D carbon steel plate sheet steel plate have no direct influence on the forming limit of spinning. The steel plate used in the test is very thin (about 0.5mm), and the commonly used thickness Q390D carbon steel plate sheet steel plate (0.8-1.6mm) will definitely be much higher than the above limit.

The company always adheres to the concept of green production, follows the development path of innovation, transformation and improvement, and has carried out in-depth cooperation with Zhengzhou University and other scientific research institutes, planning from a high starting point, strict standard design, and successfully implementing engineering projects With nearly 20 research and development projects, the company's production technology and equipment are at the forefront of the industry, and indicators such as environmental protection, energy consumption, cost, and resource utilization have reached the advanced level in the industry.

Q390D carbon steel plate sheet, Hot-rolled steel coils are made of steel billets, which are made into strip steel by the rough rolling mill and the finishing mill after heating. The hr steel strip from the rolling mill behind the finishing rolling is cooled to a set temperature by laminar flow, and then coiled into a steel coil by the coiler. The cooled steel coil will undergo different processes according to the different needs of users, and is processed into steel plates, flat coils and slit steel strip products.