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Classification of Seamless Steel Pipe According to Different Uses
Sep 08, 2020
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Seamless steel pipe is a kind of building material, which is widely used in many industries. It is a kind of square, circular or rectangular hollow section steel, which plays a very important role in the construction industry. Seamless steel pipe is widely used in fluid pipeline, such as water, oil, natural gas, natural gas and other solid materials. Compared with other solid steel, steel pipe is a kind of light steel, and it is a kind of light steel with the same torsion strength. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, construction steel scaffold, etc, which can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing time. And it has been widely used in the manufacturing of steel pipes.
Then, what are the classification of seamless steel pipe according to different uses? Below are the classifications and applications of seamless steel pipe.
1. Seamless steel pipe for structure (GBT 8162-2008).
It is mainly used for general structure and mechanical structure. The representative material (grade): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
2. Seamless steel pipe for fluid transportation (GBT 8163-2008).
It is mainly used in engineering and large-scale fluid pipeline equipment. The representative material: 20, Q345 and other materials (brand).
3. Seamless steel pipe for low-pressure and medium pressure boiler (GB 3087-2008).
It is a kind of high-quality carbon structural steel hot-rolled cold drawn seamless steel pipe, which is used to produce superheated steam pipe, large exhaust pipe, small smoke pipe and arch brick pipe of various low-pressure boilers, medium pressure boilers, boiling water pipes and locomotive boilers. The representative materials are No. 10 and No. 20 steel.
4. Seamless steel pipe for high pressure boiler (GB 5310-2008).
It is used for manufacturing high-quality carbon steel alloy steel and stainless steel seamless steel pipe. The high pressure and above pressure of heating surface of water tube boiler are 20g, 12Cr1MoVG, 15CrMoG, etc.
5. Seamless steel pipe for high pressure fertilizer equipment (GB 6479-2000).
It is suitable for high-quality carbon structural steel and alloy steel seamless steel pipe with working temperature of -40 ℃ and working pressure of 10~30 Ma. The representative material: 20, 16Mn, 12CrMo, 12Cr2Mo and other materials.
6. Seamless steel tubes for petroleum cracking (GB 9948-2006).
They are mainly used for boilers, heat exchangers and fluid pipelines in petroleum refineries. The representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, etc.
7. Steel pipe for geological drilling (YB235-70).
It is a kind of steel pipe used for core drilling in geological department. It can be divided into drill pipe, drill ring, core pipe, casing and deposition pipe according to the uses.
8. Seamless steel pipe for core drilling (GB 3423-82).
It is a kind of seamless steel pipe used for core drilling, such as drill pipe, core pipe and casing.
9. Oil drilling pipe (YB528-65).
It is used for thickening or thickening of seamless steel pipe at both ends of oil drilling. There are two kinds of steel pipe: steel wire and non steel wire. As for the steel pipe connection, there are non steel pipe butt welding and tool joint connection.
1. Seamless steel pipe for structure (GBT 8162-2008).
It is mainly used for general structure and mechanical structure. The representative material (grade): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
2. Seamless steel pipe for fluid transportation (GBT 8163-2008).
It is mainly used in engineering and large-scale fluid pipeline equipment. The representative material: 20, Q345 and other materials (brand).
3. Seamless steel pipe for low-pressure and medium pressure boiler (GB 3087-2008).
It is a kind of high-quality carbon structural steel hot-rolled cold drawn seamless steel pipe, which is used to produce superheated steam pipe, large exhaust pipe, small smoke pipe and arch brick pipe of various low-pressure boilers, medium pressure boilers, boiling water pipes and locomotive boilers. The representative materials are No. 10 and No. 20 steel.
4. Seamless steel pipe for high pressure boiler (GB 5310-2008).
It is used for manufacturing high-quality carbon steel alloy steel and stainless steel seamless steel pipe. The high pressure and above pressure of heating surface of water tube boiler are 20g, 12Cr1MoVG, 15CrMoG, etc.
5. Seamless steel pipe for high pressure fertilizer equipment (GB 6479-2000).
It is suitable for high-quality carbon structural steel and alloy steel seamless steel pipe with working temperature of -40 ℃ and working pressure of 10~30 Ma. The representative material: 20, 16Mn, 12CrMo, 12Cr2Mo and other materials.
6. Seamless steel tubes for petroleum cracking (GB 9948-2006).
They are mainly used for boilers, heat exchangers and fluid pipelines in petroleum refineries. The representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, etc.
7. Steel pipe for geological drilling (YB235-70).
It is a kind of steel pipe used for core drilling in geological department. It can be divided into drill pipe, drill ring, core pipe, casing and deposition pipe according to the uses.
8. Seamless steel pipe for core drilling (GB 3423-82).
It is a kind of seamless steel pipe used for core drilling, such as drill pipe, core pipe and casing.
9. Oil drilling pipe (YB528-65).
It is used for thickening or thickening of seamless steel pipe at both ends of oil drilling. There are two kinds of steel pipe: steel wire and non steel wire. As for the steel pipe connection, there are non steel pipe butt welding and tool joint connection.
