2000 tons hot rolled sheet A514 Gr B structural steel material inventory list7*2920*8780, 6*1650*10570, 5.5*3000*5000, 6*2310*8500, 6*2750*9600, 7*2000*8950, 5*2570*8000, 6*1850*7510, 7*2560*8600, 8*2100*8000, 6*1750*8500, 7*2920*13000, 7*2920*8780, 8*2920*6300, 6*2960*10700, 6.5*2200*10000, 8*1800*6850, 8*3040*4000, 8*1500*4850, 8*1700*6300, 10*2000*7700, 10*2030*8200, 10*1750*6000.
Normalizing process of S355J2 steel plate: normalize the S355J2 steel plate in the bottom furnace, normalizing temperature is 880-910℃, holding time is 1.8-2.2min/mm, that is to get the required S355J2 + N steel plate. 355j2 + N steel plate is mainly used in large machinery manufacturing, equipment base, large welded steel structure, construction, bridge and other fields. With the continuous development of economy and the large-scale demand of equipment, the demand of ultra thick A514 Gr B structural steel material, S355J2 + N steel plate is increasing gradually.
The cold working performance of A514 Gr B structural steel material and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of A514 Gr B structural steel material and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.
