Q370q steel is a kind of bridge steel plate. It is delivered in hot rolled, normalized condition.There are three quality levels Q370qC, Q370qD, and Q370qE. Bridge steel Q370qC, Q370qD, S690QL1 ASTM equivalent and Q370qE steel plates have different impact temperatures: C represents 0℃, D represents -20 ℃, and E represents -40℃. Q370qC-Z25 steel plate can be hot-rolled and normalized heat-treated. When mechanical properties are required, large thickness must be normalized. The thickness of Q370q steel plate we supply is above 8mm.
5mm 6mm hot rolled thin plates product S690QL1 ASTM equivalent inventory: 5*3000*8000, 5*3000*8400, 6*2800*9390, 5*2800*11880, 6*2614*7050, 5*3000*11650, 5*3000*9900, 5*3000*8300, 6*2854*8200, 5*2790*10500, 6*2854*9680, 5*3000*8800, 6*2854*7480, 6*2614*9250, 5*2990*10470, 5*3000*8600, 6*2800*9390, 6*2854*8500, 5*2990*10400, 5*2990*9000, 6*2854*6480, 6*2854*6800, 5*3000*7550, 6*2854*9390.
Ultrasonic flaw detection emits ultrasonic waves to the S690QL1 ASTM equivalent steel plate under inspection. If there are defects in the steel plate, the ultrasonic waves will reflect, refract or deform waveforms due to the defects. By recording these changes, the type and shape of the defects are analyzed. Due to its high energy and good penetration performance, and the smoothness of the S690QL1 ASTM equivalent steel plate itself, ultrasound is often used to detect defects such as inclusions, shrinkage holes, bubbles, and cracks in the steel plate.
In the first quarter, S690QL1 ASTM equivalent, crude steel output in Asia amounted to 315.15 million mt, falling by 0.3 percent, with 234.45 million mt produced by China, up 1.2 percent, 24.36 million mt produced by Japan, decreasing by 2.4 percent, 27.5 million mt produced by India, falling by 5.3 percent, and 16.94 million mt produced by South Korea, down by 4.8 percent - with all comparisons on year-on-year basis.