Seamless Carbon Steel Pipe .Seamless Carbon Steel Pipe is made of steel ingots or solid tube blanks through perforation to make capillary tubes, which are then hot rolled, cold rolled or cold drawn. Seamless Carbon Steel Pipe has an important position in my country's steel pipe industry. According to incomplete statistics, there are more than 240 carbon steel pipe manufacturers in my country, with about 250 sets of carbon steel pipe units, with an annual production capacity of about 4.5 million tons. From the perspective of diameter, <φ76, accounting for 35%, <φ159-650, accounting for 25%. In terms of varieties, 1.9 million tons of general-purpose pipes, accounting for 54%; 760,000 tons of petroleum steel pipes, accounting for 5.7%; 150,000 tons of hydraulic props and precision pipes, accounting for 4.3% of stainless steel pipes, bearing pipes and automobile pipes, a total of 50,000 tons. 1.4%.S1572 Seamless Carbon Steel Tubes. Product Nam…