Hot Rolled Carbon Seamless Steel Pipe
2024-03-15
Seamless carbon steel pipe (Seamless carbonsteel pipe) is made of steel ingot or solid tube blank through perforation to make capillary, and then hot-rolled, cold-rolled or cold-drawn. Seamless carbon steel pipe plays an important role in my country's steel pipe industry. According to incomplete statistics, there are more than 240 seamless carbon steel pipe manufacturers in my country, more than 250 sets of seamless carbon steel pipe units, and 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, general-purpose pipes are 1.9 million tons, accounting for 54%; oil pipes are 760,000 tons, accounting for 5.7%; hydraulic struts and precision pipes are 150,000 tons, accounting for 4.3%; stainless pipes, bearing pipes, and automobile pipes total 50,000 tons. tons, accounting for 1.4%.

The specifications of seamless steel pipes are expressed in millimeters of outer diameter * wall thickness.


Classification of seamless carbon steel pipes: seamless steel pipes are divided into two categories: hot-rolled and cold-rolled (dial) seamless steel pipes.

Hot-rolled seamless steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.



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