Source: Shandong Precision Steel Plant http: //www.sdlggg.com Seamless Steel Tube Executive Standard
1, structure seamless pipe (GB / T8162-2008) is used for seamless steel tubes for general structural and mechanical structure. 2, transmission fluid with seamless steel pipe (GB / T8163-2008) is used for conveying water, oil, seamless steel tubes. Usually 3 gas and other fluids, low and medium pressure boiler seamless pipe (GB3087-2008) is used to manufacture various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes and arch Brick effective high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe. 4, high-pressure boiler seamless pipe (GB5310-2008) is used to manufacture high-pressure and more pressure water tube boiler heating surface with high-quality carbon steel, alloy steel and heat-resistant stainless steel seamless steel pipe. 5, fertilizers, equipment, high pressure seamless steel pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of 10 ~ 30Ma of chemical quality carbon structural steel and alloy steel seamless steel equipment and piping. 6, petroleum cracking seamless pipe (GB9948-2006) is applicable to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe. 7, Geological Drilling Pipe (YB235-70) is for the geological department of the steel used in core drilling, use can be divided into the drill pipe, drill collar, core pipe, casing and precipitation tubes. 8, diamond core drilling seamless pipe (GB3423-82) is used for diamond core drilling drill, core rods, seamless steel pipe casing. 9, oil drilling pipe (YB528-65) is used to thicken the oil drilling within or external ends thick seamless steel tubes. Steel sub-threading and not two, Threading Pipe Fittings links, not threading methods and tools useful butt joint connection. 10, the ship carbon steel seamless pipe (GB5213-85) is to create Class I pressure vessels piping, Ⅱ grade pressure piping, boilers and Superheater carbon steel seamless steel tubes. Carbon steel seamless pipe wall temperature does not exceed 450 ℃, alloy steel seamless pipe wall temperature exceeds 450 ℃. 11, automobile axle casing seamless steel pipe (GB3088-82) is the manufacture of automobile axle casing and drive shaft tubes Bridge shell quality carbon structural steel and alloy steel hot-rolled seamless pipe. 12, diesel high-pressure tubing (GB3093-2002) is to create high-pressure diesel injection systems of cold drawn seamless tubes. 13, hydraulic and pneumatic cylinder with precision internal diameter seamless pipe (GB8713-88) is the manufacture of hydraulic and pneumatic cylinder with diameter size with precision cold drawn or cold rolled precision seamless steel pipe. 14, drawn or cold rolled precision seamless steel pipe (GB3639-2000) is used for mechanical structure with high dimensional accuracy, surface finish and hydraulic equipment Good drawn or cold rolled precision seamless steel pipe. Use a precision seamless steel pipe manufacturing mechanical structure or hydraulic equipment, can greatly reduce machining time, improve material utilization, and help to improve product quality. 15, no structural stainless steel seam steel pipe (GB / T14975-2002) is widely used in chemical; hot rolling machinery and other industrial corrosion resistant pipes and structural parts and components made of stainless steel (extrusion, expansion) and cold; oil; Textile; medical; food Stubbs (rolled) seamless steel pipe. 16, transmission fluid with stainless steel seamless pipe (GB / T14976-2002) is used for the transmission fluid of hot-rolled stainless steel (extrusion, expansion) and cold drawn (rolled) seamless steel pipe 17, shaped seamless steel pipe seamless steel pipe is in addition to the general term for other cross-sectional shapes other than round tube according to the shape and size of pipe cross-section can be divided into different shaped seamless steel pipe wall thickness, etc. (code D), ranging from wall thick shaped seamless steel pipe (codenamed BD), variable diameter seamless steel pipe shaped (codenamed BJ). Shaped seamless steel tubes are widely used in various structural parts, tools and mechanical parts. and the tube compared Yixingguan general have a greater moment of inertia and section modulus, flexural torsional greater ability, can greatly reduce the structural weight, saving steel. 18. The cryogenic pipe seamless steel pipe (GB / T18984-2003) applies to -45 ℃ ~ -195 ℃ low grade pressure vessel piping and low temperature heat exchanger pipes.