Carbon steel pipe-Product-Nucor Steel (Shandong) Co., Ltd.

Carbon steel pipes are divided into hot rolled and cold rolled (drawn) steel pipes. Hot rolled carbon steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipes. Cold rolled (dial) carbon steel pipe in addition to general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking pipe, other steel pipe, also includes carbon thin-wall steel pipe, alloy thin-wall steel pipe, stainless thin-wall steel pipe, special-shaped steel pipe. The outer diameter of the hot-rolled seamless pipe is generally greater than 32mm, the wall thickness is 2.5-75mm, the outer diameter of the cold-rolled seamless steel pipe can be 6mm, the wall thickness can be 0.25mm, the outer diameter of the thin-walled pipe can be 5mm, the wall thickness is less than 0.25mm, and the size accuracy is higher than that of the hot-rolled seamless pipe. General carbon steel pipe: is made of 10, 20, 30, 35, 45 and other high-quality carbon junction steel 16Mn, 5MnV and other low alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot rolled or cold rolled. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid transport pipelines. 45, 40Cr and other medium carbon steel seamless pipe to manufacture mechanical parts, such as cars, tractor parts. Generally used carbon steel pipe to ensure strength and flattening test. Hot-rolled steel pipes are delivered in hot-rolled or heat-treated condition; Delivered cold rolled in heat-treated condition.

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Hydraulic steel pipe

Hydraulic steel pipes are basically divided into fluid pipes and oil steel barrels used in hydraulic systems, also called honing pipes, while cold-drawn or cold-rolled precision seamless steel pipes also include hydraulic steel pipes.

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Weathering steel pipes

Weathering steel pipes, also known as Corten steel pipes, are divided into two categories: Corten A and Corten B. They are the representative steel types of the American Cu-P series steel and are low-alloy, high-strength and atmospheric corrosion-resistant structural steels.

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Precision steel pipe

Precision steel pipe is a kind of seamless steel pipe with high precision and high brightness produced by cold drawing or cold rolling process. Its inner and outer diameter size can be accurate to 0.1mm, in order to ensure the bending and torsional strength is the same, light weight, so it is widely used in the manufacture of precision machinery parts.

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Spiral steel pipe

Spiral steel pipe is a spiral seam steel pipe made of strip coil plate, extruded at constant temperature and welded by automatic double-wire double-sided submerged arc welding process. The spiral steel pipe will send the strip into the welding pipe set. After being rolled by a multi-channel roll, the strip gradually rolls up to form a circular tube blank with an open gap. The pressure of the extrusion roll is adjusted so that the weld gap is controlled within 1~3mm and the two ends of the welding joint are flush.

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Carbon steel round pipe

Carbon steel pipes are divided into hot rolled and cold rolled (drawn) steel pipes. Hot rolled carbon steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipes.

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Special-shaped steel pipe

Shaped pipe is a seamless steel pipe made of various shapes by cold drawing. Special-shaped seamless steel pipe is a general term for seamless steel pipes with other cross-section shapes in addition to round pipes. According to the different section shape and size of the steel pipe, it can be divided into equal wall thickness shaped seamless steel pipe (code D), unequal wall thickness shaped seamless steel pipe (code BD), variable diameter shaped seamless steel pipe (code BJ).

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