Our company was founded in 2000, which initially committed to providing high-quality steel A588 Gr B heavy plate products for China's rapid infrastructure construction. With the advantages of steel resources and good reputation in the domestic market, combined with the huge demand for steel in the international market, we began to export A588 Gr B heavy plate steel to the international market, opening up the international steel market.
After quenching and tempering, the 40Cr alloy steel plate has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity. The hardenability of steel is good. It can be hardened to Ф28~60mm in water quenching and Ф15~40mm in oil quenching. In addition to quenching and tempering, 40cr sheet is also suitable for cyanidation and high-frequency quenching.
The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of A588 Gr B heavy plate, hot rolled steel plate is slightly higher than that of cold rolled steel sheet. In the case of little difference in composition, the density of cold rolled steel sheet and hot rolled steel plate is the same. Hot rolled steel plate has characteristics of low hardness, easy processing and good ductility. Cold rolled steel sheet has high hardness, and it is relatively difficult for processing. But it is not easy to deform and has high strength. Hot rolled steel plate can be made into alloy steel plate by adding other elements, and its properties are also excellent compared with other high-quality steel plates.
A588 Gr B heavy plate annealing is to heat the steel to 30 ~ 50℃ above the critical temperature, keep it in the heat treatment furnace for a period of time, and then cool it down to room temperature with the furnace. The purpose of A588 Gr B heavy plate annealing is to refine the grain of steel, eliminate internal stress and reduce hardness, improve cutting performance, increase toughness and plasticity, and facilitate welding and rolling processes. A588 Gr B heavy plate annealing can be complete annealing, incomplete annealing, stress relief annealing, isothermal annealing and spheroidizing annealing.
GB/T 1591-2008 Q460E material is a high strength low alloy steel plates. Q460E steel product size A588 Gr B heavy plate: 3*1500*5900, 4*1500*6000, 48*3130*10100, 47*2610*8450, 3*1500*6000, 6*2000*8000, 48*2880*8550, 48*3130*10400, 5*1500*4150, 10*2000*8000, 48*2610*8700, 48*3170*10800, 5*1500*6000, 8*2000*2800, 47*2600*7000, 48*2880*3900, 16*2160*3300, 8*2000*8000, 47*2610*8700, 48*3150*10700, 5*1500*6000, 48*3130*10400 (mm).
The company attaches great importance to the cultivation of team spirit. Personal strength is weak. After sales service departments, leaders and subordinates often communicate with each other. Everyone often holds meetings to discuss their problems in after-sales service, discuss technical difficulties, discuss how to improve work efficiency, how to better deal with user complaints, etc.