The company adheres to the service concept of "you give the order to me and I leave the satisfaction to you". Over the years, our A709 Gr 100W bridge steel plate steel products are supplied in time, with reliable quality and perfect and thoughtful after-sales service. Meanwhile, we have huge A709 Gr 100W bridge steel plate steel stocks all the year round. The company long-term pursues the principle of quality first, customer first, quality for survival, reputation for development, and perfect service to win the users.
The basic principle of A709 Gr 100W bridge steel plate, heat treatment of steel: put the metal workpiece in a certain medium and heat it to a suitable temperature, keep it in this temperature for a certain time, and then cool it at different speeds. Objective: to obtain the desired structure and properties by means of heating, heat preservation and cooling, so as to make the metal workpiece have the required mechanical, physical and chemical properties.
45# seamless steel pipe (No.45 seamless steel pipe) is Chinese high-quality carbon structural steel, which is called S45C in Japanese standard, AISI 1045 in American standard, and C45 in German standard. The difference between 45# seamless steel pipe and 20# seamless steel pipe is that its hardness is obviously higher than that of 20# seamless steel pipe. The tempering brittleness of A709 Gr 100W bridge steel plate, 45# seamless steel pipe is high. After quenching and tempering, 45# seamless steel pipe has good mechanical properties. If the wear resistance is considered, heat treatment is required.
The black futures market is weakening. Terminal and middlemen are cautious in their inquiry and purchase, and A709 Gr 100W bridge steel plate merchants have different shipments. However, the factory price of A709 Gr 100W bridge steel plate keeps rising and the spot bottom is more supportive. The market mentality is still good. The high demand is limited, but the support from the raw material side is strong. It is expected that the A709 Gr 100W bridge steel plate price will be stable tomorrow.
