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Standards of Seamless Steel Pipe
May 11, 2020
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Standards of Seamless steel pipe are mainly divided as follows:
1. Seamless steel pipes for construction (GB/T 8162-2008) are used for general and mechanical structures.
2. Seamless steel pipe for fluid transport (GB/T 8163-2008) is a used to transport fluids such as water, oil and gas.
3. Seamless steel pipes for low and medium pressure boilers (GB 3087-1999) are used to manufacture overheating of low and medium pressure boilers of various structures.
High quality carbon structural steel hot-rolled and cold-drawn seamless steel pipes for superheated steam pipes, large smoke pipes, small smoke pipes and arched brick pipes for steam pipes, boiling pipes and locomotive boilers.
4. Seamless steel pipes for high pressure boilers (GB 5310-1995) are high-quality carbon, alloy and stainless steel seamless pipes used for heating surfaces of water-pipe boilers under high pressure and above.
5. Seamless high-pressure steel pipes (GB 6479-2000) for chemical fertilizer equipment are high-quality carbon structural and alloy steel seamless pipes for chemical equipment and pipes with operating temperatures of -40-400℃ and working pressures of 10-30Ma.
1. Seamless steel pipes for construction (GB/T 8162-2008) are used for general and mechanical structures.
2. Seamless steel pipe for fluid transport (GB/T 8163-2008) is a used to transport fluids such as water, oil and gas.
3. Seamless steel pipes for low and medium pressure boilers (GB 3087-1999) are used to manufacture overheating of low and medium pressure boilers of various structures.
High quality carbon structural steel hot-rolled and cold-drawn seamless steel pipes for superheated steam pipes, large smoke pipes, small smoke pipes and arched brick pipes for steam pipes, boiling pipes and locomotive boilers.
4. Seamless steel pipes for high pressure boilers (GB 5310-1995) are high-quality carbon, alloy and stainless steel seamless pipes used for heating surfaces of water-pipe boilers under high pressure and above.
5. Seamless high-pressure steel pipes (GB 6479-2000) for chemical fertilizer equipment are high-quality carbon structural and alloy steel seamless pipes for chemical equipment and pipes with operating temperatures of -40-400℃ and working pressures of 10-30Ma.
6. Seamless steel pipes for petroleum cracking (GB 9948-88) are used for furnaces, heat exchangers and pipes in petroleum refineries.
7. Geological drilling steel pipes (YB 235-70) are used for core drilling by geological departments. They can be divided into drill pipes, drill collars, core pipes, casing pipes and sedimentation pipes by use.
8. Seamless steel pipes (GB 3423-82) are used for diamond core drilling.
9. Oil drilling pipes (YB528-65) are used to thicken or to thicken both ends of an oil drilling. There are two kinds of steel tube splitting wire and non-splitting wire. The threaded tube is joined with the joints, and the non-threaded tube is joined with the tool joints by butt welding.
10. Carbon steel seamless pipe for ships (GB 5213-85) is useds for manufacturing class I, I I, boilers and superheaters.The working temperature of the seamless carbon steel pipe wall is not more than 450 ℃, and that of the seamless alloy steel pipe wall is more than 450 ℃.
11. Seamless steel tube for automotive semi-axle sleeve (GB 3088-82) is a high quality hot-rolled seamless steel tube for automotive semi-axle sleeve and axle tube for driving bridge housing.
12. High-pressure oil pipes for diesel engines (GB 3093-2002) are cold-drawn one used to manufacture high-pressure pipes for diesel engine injection systems.
13. Precision inner diameter seamless steel tube for hydraulic and pneumatic cylinders (GB 8713-88) is a cold-drawn or cold-rolled precise one with precise inner diameter for hydraulic and pneumatic cylinders.
14. Cold-drawn or cold-rolled precise seamless steel tube (GB 3639-2000) is used for mechanical structure, high dimensional accuracy of hydraulic equipment and good surface finish.
15. Seamless stainless steel pipe for construction (GB/T 14975-2002) is a hot-rolled (extruded, expanded) and cold-drawn (rolled) one made of stainless steel for corrosion-resistant pipes and components and components in chemical, petroleum, textile, medical, food and machinery industries.
16. Seamless stainless steel pipe for fluid transport (GB/T 14976-2002) is hot-rolled (extruded, expanded) and cold-drawn (rolled) one made of stainless steel for fluid transport.
17. Special-shaped seamless steel tube is the general name cross-section shapes other than circular tube. According to the section shape and size of steel pipe, it can be divided into iso-thickness seamless steel pipe (code D), unequal iso-thickness seamless steel pipe (code BD), and variable diameter seamless steel pipe (code BJ). The special-shaped seamless steel tube is widely used in various structural parts, tools and mechanical parts. Compared with circular tubes, special-shaped tubes generally have larger inertia moment and section modulus, and have greater bending and torsion resistance, which can greatly reduce the weight of the structure and save steel.
7. Geological drilling steel pipes (YB 235-70) are used for core drilling by geological departments. They can be divided into drill pipes, drill collars, core pipes, casing pipes and sedimentation pipes by use.
8. Seamless steel pipes (GB 3423-82) are used for diamond core drilling.
9. Oil drilling pipes (YB528-65) are used to thicken or to thicken both ends of an oil drilling. There are two kinds of steel tube splitting wire and non-splitting wire. The threaded tube is joined with the joints, and the non-threaded tube is joined with the tool joints by butt welding.
10. Carbon steel seamless pipe for ships (GB 5213-85) is useds for manufacturing class I, I I, boilers and superheaters.The working temperature of the seamless carbon steel pipe wall is not more than 450 ℃, and that of the seamless alloy steel pipe wall is more than 450 ℃.
11. Seamless steel tube for automotive semi-axle sleeve (GB 3088-82) is a high quality hot-rolled seamless steel tube for automotive semi-axle sleeve and axle tube for driving bridge housing.
12. High-pressure oil pipes for diesel engines (GB 3093-2002) are cold-drawn one used to manufacture high-pressure pipes for diesel engine injection systems.
13. Precision inner diameter seamless steel tube for hydraulic and pneumatic cylinders (GB 8713-88) is a cold-drawn or cold-rolled precise one with precise inner diameter for hydraulic and pneumatic cylinders.
14. Cold-drawn or cold-rolled precise seamless steel tube (GB 3639-2000) is used for mechanical structure, high dimensional accuracy of hydraulic equipment and good surface finish.
15. Seamless stainless steel pipe for construction (GB/T 14975-2002) is a hot-rolled (extruded, expanded) and cold-drawn (rolled) one made of stainless steel for corrosion-resistant pipes and components and components in chemical, petroleum, textile, medical, food and machinery industries.
16. Seamless stainless steel pipe for fluid transport (GB/T 14976-2002) is hot-rolled (extruded, expanded) and cold-drawn (rolled) one made of stainless steel for fluid transport.
17. Special-shaped seamless steel tube is the general name cross-section shapes other than circular tube. According to the section shape and size of steel pipe, it can be divided into iso-thickness seamless steel pipe (code D), unequal iso-thickness seamless steel pipe (code BD), and variable diameter seamless steel pipe (code BJ). The special-shaped seamless steel tube is widely used in various structural parts, tools and mechanical parts. Compared with circular tubes, special-shaped tubes generally have larger inertia moment and section modulus, and have greater bending and torsion resistance, which can greatly reduce the weight of the structure and save steel.
