Ultrasonic flaw detection emits ultrasonic waves to the S355NL thermomechanical rolling 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 S355NL thermomechanical rolling steel plate itself, ultrasound is often used to detect defects such as inclusions, shrinkage holes, bubbles, and cracks in the steel plate.
The company uses outsourced logistics operations. Our cooperated professional third-party logistics providers use the advantages of large-scale production and cost advantages to achieve cost savings by increasing the utilization of resources in each link, so that we can benefit from the separation of cost structure. Therefore, we can also provide customers with better, faster and more efficient cargo transportation, delivery, and lower freight costs.
A572-50 steel I-beam is widely used in construction and architectural applications because it can provide more strength unit weight. The low content of niobium, vanadium and other alloy elements optimize its strength and atmospheric corrosion performance. Because of its high strength of 50000 Ksi yield strength, S355NL thermomechanical rolling a572-50 steel I-section steel is more and more replacing ordinary carbon steel beams such as A36, and A36 section steel needs to be thickened to meet the strength requirements. S355NL thermomechanical rolling ASTM 572 steel I can be used in other grades, such as 42, 55 and 60.
According to the data released by the Japan iron and Steel Union (JISF), the export volume of Japanese steel in the second quarter of 2020 S355NL thermomechanical rolling is about 4.959 million tons, a year-on-year decrease of 14.2%; the export volume in the first half of 2020 is about 11.07 million tons, with a year-on-year growth of 1.8%. It has been revealed that the year-on-year increase in export volume does not mean that Japan's export S355NL thermomechanical rolling situation of Pugang is better in the first half of the year, but only because the base number of the same period last year is too low.