The use of low carbon steel is limited due to its low strength. The strength of the carbon steel can be greatly improved by properly increasing the manganese content in the A588 grade A heavy plate carbon steel and adding some alloy elements such as vanadium, titanium and niobium. If the carbon content in the carbon steel is reduced and a small amount of aluminum, boron and carbide forming elements are added, the ultra-low carbon bainite can be obtained, A588 grade A heavy plate which has high strength and good plasticity and toughness.
Medium plate A588 grade A heavy plate products size: 5.5*2250*11550, 5*2200*10100, 5*1500*4500, 6*1750*13000, 5*2700*12050, 5*2700*12050, 6*1800*5500, 6*1550*6000, 9*2000*6000, 5.5*2600*10100, 5*2500*11000, 7*1800*10450, 6*3080*6000, 9*2000*9000, 5.5*2600*11850, 6*3320*5000, 9*1760*7800, 6*3370*4100, 9*2400*9800, 7*1970*7050, 6*3240*5400, 9*1800*10000, 6*3380*4800, 7*2120*6400 and 9*2400*8500.
According to the data of Tianyan Inspection, recently, a series of changes have taken place in the steel e-commerce company Minmetals E-commerce Co., Ltd., and Alibaba's investment entity, Hangzhou Ali Venture Capital Co., Ltd., has withdrawn from its ranks of shareholders. Previously, Alibaba Banner held 44% of the company's shares. Minmetals E-Commerce Co., Ltd.'s business scope includes international ship management; international shipping; domestic water transportation; online trade agents; online operation of computers, metal materials, hardware, etc.
Welded steel pipes are made by crimping steel plates, bending them into a circle, and then welding the joints together. Seamless steel pipe is directly processed by round steel piercing or hot rolling process, so there is no weld on the outer surface. The performance of seamless steel pipe is better than that of welded steel pipe, and the price of seamless steel pipe is also higher. There are some differences in chemical composition between A588 grade A heavy plate, welded steel pipe and seamless steel pipe. The material of welded steel pipe contains the chemical composition suitable for welding.
