09CuPCrNi-A rusty steel for sculpture has long way to go to achieve better performance

S355J2 is a European standard low alloy high strength structural steel grade, equivalent to Q345D. Because of its good impact toughness and welding performance, S355J2 steel plate is widely used in bridges, ships, power plant equipment, hoisting and transportation machinery, machinery manufacturing and other engineering and welding structures that bear high loads. S355J2 steel plate delivery status: hot rolled delivery, the 09CuPCrNi-A rusty steel for sculpture specific delivery status should be indicated in the contract.

The company specializes in the research and development, production and sales of 09CuPCrNi-A rusty steel for sculpture seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has 09CuPCrNi-A rusty steel for sculpture five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,09CuPCrNi-A rusty steel for sculpture rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.

Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized 09CuPCrNi-A rusty steel for sculpture are higher than that of annealed 09CuPCrNi-A rusty steel for sculpture, but the elimination of internal stress is not as good as annealing. The normalizing operation of 09CuPCrNi-A rusty steel for sculpture is simple, the cost is low, the productivity is high, and it is widely used in actual production.

Alloy elements have the most significant strengthening effect on steel in quenched and tempered state. The primary purpose of adding alloying elements to steel is to improve the hardenability of steel and to ensure that martensite is easily obtained during quenching. The second is to improve the tempering stability of the steel to keep the martensite at a higher temperature, so that the carbides precipitated during the tempering of the quenched steel are finer, uniform and stable. In this way, under the same conditions, alloy steel has higher strength than carbon steel, 09CuPCrNi-A rusty steel for sculpture.

The 365 day service system is implemented, and the business, loading and delivery are handled as usual in holidays and festivals. Actively help users solve difficulties. When users encounter difficulties in handling business, they should actively coordinate with the external solution; if they need to solve the problems internally, they should solve them in a timely manner without prevarication and wrangling. In line with the 09CuPCrNi-A rusty steel for sculpture principle of "fairness, justice and timeliness", coordinate with relevant departments and deal with all kinds of objections in a timely manner.