Seamless Steel Pipe Implementing GB Standard

[1] Seamless steel tube for structure (GB/T8162-2008) is a kind of seamless steel tube with general structure and mechanical structure.

[2] Seamless steel pipe for fluid transportation (GB/T8163-2008) is a general seamless steel pipe for conveying water, oil, gas and other fluids.

[3] Seamless steel pipes for low and medium pressure boilers (GB3087-2008) are high quality carbon structural steels used to manufacture superheated steam pipes for low and medium pressure boilers, boiling pipes and superheated steam pipes in various structures. Arch bricks for locomotive boilers. Hot-rolled and cold-drawn (rolled) seamless steel tubes.

[4] Seamless steel pipes for high pressure boilers (GB5310-2008) are high quality carbon steel, alloy steel and stainless steel heat-resistant seamless steel pipes used to produce heating surfaces of high pressure and high pressure water pipe boilers.

[5] High pressure seamless steel pipe for fertilizer equipment (GB6479-2000) is a high quality carbon structural steel and alloy steel seamless pipe. It is suitable for chemical equipment and pipeline with working temperature ranging from – 40 400 C. Pressure ranges from 10 to 30 mA.

[6] Seamless steel pipe for petroleum cracking (GB9948-2006) is a kind of seamless steel pipe for furnace tubes, heat exchangers and pipelines in refineries.

[7] Geological drilling steel pipe (YB235-70) is used for core drilling by geological departments. According to the application, it can be divided into drill pipe, drill collar, core pipe, casing and settling pipe.

[8] Diamond drill core seamless steel pipe (GB3423-82) is a kind of seamless steel pipe for diamond core, mandrel and casing.

[9] Oil drilling pipe (YB528-65) is a kind of seamless steel pipe, which is used to thicken or thicken both ends of oil drilling. Steel pipes are divided into two types, namely sub-line and non-line, and the line pipe is connected with the joint. The butt welding method of the line car pipe is connected with the tool joint.

[10] Marine carbon steel seamless pipe (GB5213-85) is a kind of carbon steel seamless pipe used to produce class I pressure pipe system, class II pressure pipe system, boiler and ship superheater. The wall temperature of carbon steel seamless pipe is not more than 450 C, and that of alloy steel seamless pipe is more than 450 C.

[11] Seamless steel tube (GB3088-82) for automobile semi-axle sleeve is a kind of hot-rolled seamless steel tube with high quality carbon and alloy structural steel, which is used to manufacture automobile axle sleeve and drive axle housing.

[12] The high-pressure fuel pipe for diesel engine (GB3093-2002) is a cold-drawn seamless steel pipe, which is used to manufacture high-pressure pipe for diesel injection system.

[13] The precise inner diameter seamless steel pipe (GB8713-88) for hydraulic cylinders and cylinders is precise drawing or precise inner diameter size seamless steel pipe, which is used to manufacture hydraulic cylinders and cylinders.

[14] Cold-drawn or cold-rolled precise seamless steel tube (GB3639-2000) is a kind of cold-drawn or cold-rolled precise seamless steel tube, which is used in mechanical structure and hydraulic equipment with high dimensional accuracy and good surface finish. Using precise seamless steel pipe to manufacture mechanical structure or hydraulic equipment can greatly shorten the processing time, improve the utilization rate of materials, and help to improve product quality.

[15] Seamless stainless steel tube for structure (GB/T14975-2002) is a kind of stainless steel hot-rolled stainless steel, which is widely used in chemical industry, petroleum, textile, medical, food, machinery and other industrial corrosion-durable pipes and structural components. (Extrusion, Expansion) and Cold Drawn (Rolled) Seamless Steel Tubes.

[16] Stainless steel seamless pipes for fluid conveying (GB/T14976-2002) are hot-rolled (extruded, expanded) and cold-drawn (rolled) seamless pipes made of stainless steel for fluid conveying.

[17] Special-shaped seamless steel pipe is the general name of seamless steel pipe with other cross-sectional shapes besides circular pipe. According to the different shapes and sizes of steel tube sections, it can be divided into iso-wall thickness special-shaped seamless steel tube (code D), unequal wall thickness special-shaped steel tube (code BD) and variable diameter special-shaped seamless steel tube (code BJ). Special-shaped seamless steel tubes are widely used in various structural parts, tools and mechanical parts. Compared with circular tubes, special-shaped tubes usually have larger rotational inertia and section modulus, and have greater flexural and torsional resistance, which can greatly reduce the weight of the structure and save steel.

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