Seamless steel pipe material
Seamless steel pipe is a relatively common type of pipe, so what are the materials of seamless steel pipe?
What kinds of seamless steel pipe materials are there?
Seamless steel pipes are made of carbon steel, alloy steel, stainless steel and other materials, such as:
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Black and hot-dipped zinc-coated steel pipes welded and seamless |
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Seamless carbon steel for high temperature service |
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Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
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Seamless carbon steel boiler tubes for high pressure |
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Seamless Medium-carbon boiler and superheater tubes |
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Seamless alloy-steel boiler, superheater, and heat-exchanger tubes |
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seamless and welded carbon and alloy steel pipe intended for use at low temperatures. |
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Seamless ferritic alloy-steel pipe for high-temperature service |
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Alloy steel forgings for pressure and high-temperature parts |
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Seamless carbon for mechanical tubing |
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API Spec 5CT J55/K55/N80/L80/P110/K55 |
Seamless steel pipe for casing |
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API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 |
Seamless steel pipe for line pipe |
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DIN 17175 |
Seamless steel tube for elevated temperture |
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DN2391 |
Cold drawn seamless prevision pipe |
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DIN 1629 |
Seamless circular unalloyed steel tubes subject to special requirements |
Structural seamless steel pipes are usually made of 20# carbon steel, 45# carbon steel, 20CR alloy steel, 40cr alloy steel, 42crmo alloy steel and other materials.
Seamless steel pipes for fluid transport are mostly made of 20# carbon steel, Q345 alloy steel and other materials.
Seamless steel pipes for conveying corrosive media are usually made of OCR13 stainless steel, 0CR18NI9 stainless steel and other materials.
What is seamless steel pipe?
1.Seamless steel pipe is an integrally formed steel pipe without seams on the surface. There are various types of seamless steel pipes. According to the production process, there are hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, and extruded seamless steel pipes. If divided according to the shape of the section, there are different styles such as circle, square, oval, triangle and so on.
2.There are various sizes of seamless steel pipes, and their diameters range from 4-900 mm. The more common sizes of seamless steel pipes are 32 mm in diameter, 50 mm in diameter, 80 mm in diameter, 100 mm in diameter, 150 mm in diameter, 200 mm in diameter, 300mm in diameter, etc. Among them, the maximum size of hot-rolled seamless steel pipe is 600 mm in diameter, and the maximum size of cold-rolled seamless steel pipe is 200 mm in diameter.
3.The performance of seamless steel pipe is superior, such as light weight, good corrosion resistance, high temperature resistance, good impact resistance, high tensile strength, good seismic performance, long service life, easy processing, etc. It is widely used and can be used to make mechanical parts, such as automobile rotating shafts and oil drill pipes. Seamless steel pipes can also be used as pipelines for transporting fluids, such as transporting natural gas, oil, water, etc.
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