Q890E steel plate chemical composition: C≤0.20, Si≤0.80, Mn≤2.00, P≤0.020, S≤0.010, Cu≤0.50, Cr≤1.50, Ni≤2.00, Mo≤0.70, B≤0.0050, V≤0.12, Nb≤0.06, Ti≤0.05.Q890E steel plate yield strength: ≥890Mpa when thickness ≤50mm; yield strength: ≥830Mpa when 50mm ≤ thickness ≤100mm.Application scope of S500Q material, Q890E steel plate: Q890E steel plate is suitable for manufacturing hydraulic supports, heavy vehicles, construction machinery and other steel structures requiring good weldability.
High quality steel sheet and plate product S500Q material supply 10.5*1970*7950, 13*1300*4350, 11*1900*12500, 12.5*2870*7100, 11*1870*12500, 10.5*1970*8000, 13*1520*7950, 11*1910*9000, 12.5*2900*8250, 11*1870*13500, 10.5*2350*6200, 14*1440*6100, 11*3100*10000, 13*1510*4850, 11*1870*9300, 11*1570*12000, 14*1800*9750, 11.5*2640*7600, 13*2380*6000, 11*2400*10000.
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The effect of nitrogen (N) on the properties of S500Q material and so on steel is similar to that of carbon and phosphorus. With the increase of nitrogen content, the strength of steel can be significantly improved, especially the plasticity, especially toughness, and the weldability will be decreased, and the cold brittleness will be intensified. At the same time, aging tendency, cold brittleness and hot brittleness will be increased, which will damage the weldability and cold bending property of steel. Therefore, the nitrogen content in S500Q material and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.