Carbon steel pipe is divided into hot-rolled and cold-rolled (pulled) steel pipe.
Hot-rolled carbon 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.
Cold-rolled (dial) carbon steel pipes include carbon steel thin-walled steel pipes, alloy thin-walled steel pipes, steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes. Rust thin-walled steel pipe, special-shaped steel pipe. The outer diameter of hot-rolled seamless pipe is generally bigger than DN32, and the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless steel pipe can reach 6mm, the wall thickness can reach 0.25mm. The outer diameter of thin-wall pipe can be reached 5mm, and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.
The general carbon steel pipe is made of low-alloy structural steels such as 10, 20, 30, 35, 45 high-quality carbon steels such as 16Mn, 5MnV or alloy steels such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc., which are hot-rolled or cold-rolled. 10,20 and other seamless pipes made of low carbon steel are mainly used for fluid transportation pipelines. 45, 40Cr and other medium carbon steel seamless pipes are used to make mechanical parts, such as parts for cars and tractors. Carbon steel pipes are generally used to ensure strength and flattening tests. The hot-rolled steel pipe is delivered in a hot-rolled state or a heat-treated state; the cold-rolled steel is delivered in a heat-treated state.
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The construction of the Mechanical
The ASTM A106 pipes are always produced in a seamless manner, which can be bent, coiled and turned over. Products with a size less than 2 are usually produced in the form of a cold-drawn product, while the above product is usually hot. Application:
The A106 pipeline is suitable for high temperature applications.