Introduce the S690QL low alloy high strength steel plate in detail

S690QL low alloy high strength steel plate, Q890D steel plate is quenched and tempered steel for high-strength structure, the implementation standard: GB/T 16270. In the Q890D steel grade, "Q" means yield, "890" means yield value, and "D" means grade level. The equivalent material of Q890D is EN S890Q steel. The size, shape, weight and allowable deviation of Q890D steel plate shall meet the requirements of GB/T709. Q890D steel plate delivery status (heat treatment): quenching and tempering.

In February, the North American steel price index was 171.2 points, up 4.6 points on a month on month basis, up 2.8%; the U.S. manufacturing PMI was 50.1%, down 0.8 percentage points on a month on month basis. Among them, the production index decreased by 4.0 percentage points, and the inventory index decreased by 2.3 percentage points; at the end of February, the utilization rate of crude steel production capacity in the United States was 82.5%, 0.2 percentage points higher than that in the previous month. This month, the ex factory prices of major steel products such as S690QL low alloy high strength steel plate in the Midwest steel works of the United States rebounded. Except for the steel prices remained stable, the prices of other steel products rose.

Hot rolled S690QL low alloy high strength steel plate product stock size: 12*1600*91000, 25*1950*10250, 25*1950*10150, 14*2000*10000, 12*1600*10000, 16*1500*9340, 60*2020*6100, 25*1950*9700, 14*2000*13500, 75*2390*4320, 16*1500*9340, 50*2740*13460, 20*2100*10700, 20*2500*6200, 60*1750*9100, 34*1900*12000, 12*2050*5100, 45*2010*10000, 25*2100*8650, 70*2270*7600, 16*1500*9340, 6*1950*10000, 30*2000*7630, 20*2100*11600, 70*2260*7950, 34*1900*12000.

In actual processing applications, the processing S690QL low alloy high strength steel plate thickness of flame cutting ranges from 6 to 200 mm, and the S690QL low alloy high strength steel plate cutting thickness can even reach 350 mm by replacing the air pipe and cutting torch nozzle. In order to better improve the cutting quality, the related process parameters will be slightly different when using flame cutting for materials of different thickness. The verticality of the cutting surface processed by the CNC flame cutting machine is generally high, and the slope can be controlled below 2-3°. The characteristic is that flame cutting performs better when cutting S690QL low alloy high strength steel plate with a certain thickness above 10mm.