High strength steel Q345B, GB/T 1591-2008 Q345B steel size and stock (mm): 7*2200*6500, 15*1050*8000, 5.5*3000*3600, 15*2200*3650, 32*1800*0000, 7*1600*6000, 28.5*3240*5700, 43.5*1630*3900, 23*2980*3500, 46*750*11300, 6*1460*6000, 10*2500*10000, 40*1770*3350, 26*1830*3500, 26*1800*2800, 11*2890*2880, 26*1300*11000, 43.5*1600*3900, 14*2000*3100, 11*2800*3250, 36*1100*8650, 23.4*2280*2800.Focusing on the energy conservation and emission reduction objectives proposed by the municipal government, the company gives full play to the advantages of Steel SA283 Grade D Plate circular economy formed after the comprehensive completion and operation, and vigorously promotes the implementation of energy conservation objectives. Through measures such as energy saving, technological innovation and Steel SA283 Grade D Plate management strengthening, the energy saving target of annual reduction of added value energy consumption by 7%. It has made great contribution to energy saving of over completion.Both steelmaking and ironmaking are carried out by oxidation-reduction reaction, but there are great differences between them in reaction objects: ironmaking is to reduce iron, while Steel SA283 Grade D Plate steelmaking is to remove excessive carbon and other impurities in pig iron, so there are relations and differences between them in actual operation. There are three main methods of Steel SA283 Grade D Plate steelmaking: converter, electric furnace and flat furnace. The converter steelmaking process is most widely used.The microstructure of the quenched and tempered alloy steel, Steel SA283 Grade D Plate after conventional heat treatment is tempered sorbite. For parts with wear-resistant surface (such as gears and spindles), induction heating surface quenching and low-temperature tempering are carried out, and the surface structure is tempered martensite. The surface hardness can reach 55HRC-58HRC. After quenching and tempering, the yield strength of quenched and tempered alloy steel is about 800MPa, the impact toughness is 800kJ / m2, and the core hardness is 22HRC - 25HRC. If the cross-section size is large but not quenched, the properties will be significantly reduced.Relying on the background of high-quality steel resources and its own strong steel machining capabilities, BBN comany can not only supply various steel material products, such as steel coils, steel plates, Steel SA283 Grade D Plate sheet, steel pipes, and shaped steels, but also provide a variety of steel deep processing services like cutting, welding and grinding. Through continuous technological innovation and after-sales service optimization, the company has its own world on the domestic and international steel industry stage!
