What are the quality features of A572 Gr 55 high strength steel plate

Rolling steel is the process of pressing to change the shape of the ingot and billet between the rotating rolls. The so-called steel rolling process is a combination of a series of steel rolling processes. The entire rolling production process is always composed of the following A572 Gr 55 high strength steel plate basic processes: ① billet preparation:Including the cleaning of surface defects, the removal of surface scale and the pre-heat treatment of billets. ② billet heating ③ steel rolling: it is the core of the entire rolling production process. ④ Finishing.

2020 October A572 Gr 55 high strength steel plate specification: 8*2200*10000, 16*2150*10400, 30*2500*6200, 31.2*2950*9380, 7*2200*8000, 30*2200*10000, 14*2400*9900, 18.5*2700*9570, 21*2100*8810, 14*2070*9060, 12*2200*10000, 14*1950*8000, 36*2200*7700, 7*2200*8000, 14*2070*9060, 10*2200*8000, 20*2500*10000, 14*2400*10000, 30*2000*7400, 6*2800*12000, 21*2100*8810, 32*2200*10000, 16*2150*10250, 27*2500*9000, 20*2100*7000, 21*2100*9100.

According to the data of the Bureau of statistics, the average monthly output of domestic A572 Gr 55 high strength steel plate and so on steel in the past five years (2015-2019) is 96.8696 million tons. In recent five years (2015-2019), the average monthly export volume of domestic steel is 7.2152 million tons, accounting for 7.45% of the average monthly steel output. The top 10 major exporters are South Korea, Vietnam, Thailand, Indonesia, the Philippines, India, Myanmar, Saudi Arabia, the United Arab Emirates and Malaysia, accounting for 51.4% of the total domestic exports.

How to distinguish the inferior steel plate? 1. The surface of the fake and inferior steel plate is easy to produce scab. 2. The material of fake and inferior steel plate is not uniform and there are many impurities. The surface of fake and inferior steel plate is often pitted. Pitting is an irregular and uneven defect on the surface of A572 Gr 55 high strength steel plate, steel plate caused by serious wear of rolling groove. Due to the pursuit of profit by the manufacturers of fake and inferior steel plates, the groove rolling often exceeds the standard.