Line pipe is a pipeline project that conveys oil, steam and water from the ground to oil and natural gas industrial enterprises through pipeline pipes. 1 API 5L Specification for Line Pipe Use in Conveying Gas,Water and Oil 2 ISO 3183 Steel Pipe for Pipeline Transportation System 3 EN 10208-1&2 Steel pipes for Pipelines for Combustible Fluids 4 GB/T 9711 Steel Pipe for Pipeline Transportation System
Structural steel pipe refers to the steel pipe mainly used in general engineering structure and mechanical structure.Carbon structural pipes are mainly used in factories, bridges, ships and other buildings, such steel is generally used directly without heat treatment. Because of its high strength and comprehensive mechanical energy, alloy structural pipes are widely used in bridges, ships, boilers, vehicles and important building structures. Structural stainless-steel seamless steel pipe is widely used in chemical, petroleum, textile, medical, food, machinery and other industries corrosion-resistant pipes and structural parts.According to the manufacturing method can be divided into seamless structure pipe and welded structure pipe. According to the shape can be divided into circular, square, rectangular, oval and other irregular shapes. 1 ASTM A134 Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over) Steel Pipe 2 ASTM A139 Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over) 3 ASTM A252 Welded and Seamless Steel Pipe Piles 4 ASTM A500 Cold-Formed Structural Tubing in Rounds and Shapes 5 ASTM A501 Hot-Formed Welded and Seamless Carbon Steel Structural Tubing 6 ASTM A618 Hot-Formed Welded and Seamless Carbon Steel Structural Tubing 7 EN 10210 Hot Finished Structural Hollow Section of Non-alloy and Fine Grain Structural Steel 8 EN 10219 Cold Formed Welded Structural Hollow Sections of Non-alloy and Fine Grain Steel 9 JIS G3444 Carbon Steel Tubes for General Structure Purposes 10 JIS G3445 Carbon Steel Tubes for Machine Structure Purposes 11 JIS G3446 Stainless Steel Pipe for Machine and Structural Purposes 12 JIS G3475 Carbon Steel Tubes for Building Structure 13 GB/T 3094 Cold Drawn Shaped Steel Tubes 14 GB/T 8162 Seamless Steel Tube for Structure Purposes 15 GB/T 14975 Seamless Stainless Steel Tube for Structural 16 GB/T 18705 Welded Stainless Steel Pipes for Decoration 17 GB/T 30063 Longitudinal Submerged Arc Welded Steel Tubes for Structural Purpose 18 GB/T 34201 Seamless Hot-Rolled Square and Rectangular Steel Tubes for Structure
Low temperature steel pipe refers to the steel pipe used in low temperature environment below -10. The steel usually used at low temperature of -10~-196 is called low temperature steel, and the steel used at low temperature below -196 is called ultra-low temperature steel, which has enough notch toughness. Low temperature steel pipe is mainly used in the production of ethylene, propylene, urea, synthetic ammonia, compound chemical fertilizer and washing, purification, desulphurization and degreasing in pharmaceutical industry with petroleum, chemical, natural gas and coal as raw materials, as well as cryogenic equipment manufacturing, ultra-low temperature cold storage, transportation of ultra-low temperature liquefied gas pipeline and its pipe components. High temperature steel pipe is the steel pipe used in high temperature environment. This kind of steel pipe needs to have certain high temperature resistance, will not decline in high temperature environment, but also has certain corrosion resistance.High temperature steel pipe is often used in exhaust pipe, heat treatment furnace, heat switch, incinerator and other pipeline projects that require heat resistance, because the medium in chemical pipeline, power plant boiler pipeline is mostly some high temperature gas, liquid, some also have certain corrosion. 1 ASTM A106 Seamless Carbon Steel Pipe for High Temperature Service 2 ASTM A268 Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service 3 ASTM A269 Seamless and Welded Austenitic Stainless Steel Tubing for General Service 4 ASTM A312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes 5 ASTM A333 Seamless and Welded Steel Pipe for Low Temperature Service 6 ASTM A334 Seamless and Welded Carbon and Alloy Steel Tubes for Low Temperature Service 7 ASTM A335 Seamless Ferritic Alloy-Steel Pipe for High Temperature Service 8 ASTM A358 Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe 9 ASTM A376 Seamless Austenitic Steel Pipe for High Temperature Service 10 ASTM A409 Welded Large Diameter Austenitic Steel Pipe for Corrosive or High Temperature Service 11 EN 10216-2&4 Seamless Steel Tubes for Pressure Purposes with Specified Elevated and Low Temperature Properties 12 EN 10217-2&4&5&6 Welded Steel Tubes for Pressure Purposes with Specificated Elevated and Low Temperature Properties 13 JIS G3456 Carbon and Alloy Steel Pipes for High Temperature Service 14 JIS G3458 Alloy Steel Pipes for High Temperature Sevice 15 JIS G3459 Stainless Steel Pipes for Corrosion Resistance and Low&High Temperature Service 16 JIS G3460 Carbon and Alloy Steel Pipes for Low Temperature Service 17 JIS G3464 Steel Heat Exchanger Tubes for Low Temperature Service 18 GB/T 18984 Seamless Steel Pipes for Low Temperature Service Piping 19 GB/T 32970 Longitudinal Submerged-Arc Welded Steel Pipe for High Pressure Service at High Temperatures
Anti-Corrosive steel pipe refers to the internal and external coating processing with anticorrosive functional materials or by using carbon steel seamless steel pipe, carbon steel spiral steel pipe or carbon steel straight seam steel pipe as base material. A steel pipe that can effectively prevent or slow down chemical or electrochemical corrosion reactions during transportation and use. Anti-corrosion steel pipe is mainly used in petroleum, chemical, gas, heat, sewage treatment, water, bridge, steel pipe and other engineering fields. 1 ASTM A789 Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe for General Service 2 ASTM A790 Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe 3 EN 10288 Steel Tubes and Fittings for Onshore and Offshore Pipelines 4 DIN 30670 Polyethylene Coatings on Steel Pipes and Fittings 5 JIS G3469 Polyethylene Coated Steel Pipe 6 GB/T 31940 Bi-Metal Composite Corrosion Resistance Steel Pipe for Fluid Transportation 7 SY/T 0413 Polyethylene Caoting for Buried Steel Pipeline
Gasket : Metallic Gasket(Ring-Joint,Spiral Wound,Jacketed),Nonmetallic Flat Gasket : ASME B16.20,ASME B16.21 Bolt Square and Hex Bolt and Screw ASME B18.2.1 ASTM A307 DIN1665 DIN1662 DIN6921 JIS B1189 GB/T 16674 Nut: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts ASME B18.2.2 ASTM A307 DIN977 DIN1661 DIN6923 JIS B 1190 GB/T 6177 Washer : Plain Washer,Lock Washer ASME B18.22.1 ASTM325 DIN440 JIS B1256 GB/T 97 Expansion Joint : Flexible Expansion Joint,Metal Expansion Joint, Rubber Expansion Joint, Spherical Expansion Joint Hose : Flexible Metal Hose, Stainless Steel Metal hose, Flanged Loose Sleeve Metal Hose, Fixed Loose Flange Metal Hose Material: Nonmetallic,Carbon Steel,Alloy Steel,Stainless Steel MOQ : 5 Nos Transportation : FCL&LCL by sea Delivery : 10-15 days after signed contract Payment : L/C or T/T or D/P or O/A
It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, textile and boiler manufacturing. Cold drawing, welding, extrusion and hot rolling are the methods of producing special-shaped tubes. Compared with the circular tube, the special-shaped tube generally has larger moment of inertia and section modulus, and has greater bending and torsion resistance, which can greatly reduce the weight of the structure and save steel. 1 ASTM A500 Cold Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes 2 ASTM A501 Hot-Formed Welded and Seamless Carbon Steel Structural Tubing 3 ASTM A511 Seamless Staniless Steel Mechanical Tubing 4 ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing 5 ASTM A554 Welded Stainless Steel Mechanical Tubing 6 ASTM A618 Hot-Formed Welded and Seamless High-Strength Low-Alloy Structural Tubing 7 EN 10210 Hot Finished Structural Hollow Section of Non-alloy and Fine Grain Structural Steels 8 EN 10219 Cold Formed Welded Structural Hollow Sections of Non-alloy and Fine Grain Steel 9 EN 10305-5 Steel Tubes for Precision Applications-Welded and Cold Sized Square and Rectangular Tubes 10 GB/T 3094 Cold Drawn Shaped Steel Tubes 11 GB/T 34201 Seamless Hot-Rolled Square and Rectangular Steel Tubes for Structure 12 JIS G3446 Stainless Steel Pipe for Machine and Structural Purposes
It can be divided into oil well pipe (casing, tubing and drill pipe, etc.), pipeline pipe, boiler pipe, mechanical structure pipe, hydraulic prop pipe, gas bottle pipe, geological pipe, chemical pipe (high pressure fertilizer pipe, petroleum cracking pipe) and ship pipe, etc. 1 ASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler Superheater and Heat-Exchanger Tubes 2 ASTM A249 Welded Austenitic Steel Boiler Super-heater Heat-exchanger and Condenser Tubes 3 ASTM A268 Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service 4 ASTM A269 Seamless and Welded Austenitic Stainless Steel Tubing for General Service 5 ASTM A312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes 6 ASTM A358 Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications 7 ASTM A376 Seamless Austenitic Steel Pipe for High Temperature Service 8 ASTM A409 Welded Large Diameter Austenitic Steel Pipe for Corrosive or High Temperature Service 9 ASTM A511 Seamless Staniless Steel Mechanical Tubing 10 ASTM A554 Welded Stainless Steel Mechanical Tubing 11 ASTM A789 Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe for General Service 12 ASTM A790 Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe 13 EN 10216-5 Seamless Steel Tubes for Pressure Purposes-Stainless Steel Tube 14 EN 10217-7 Welded Steel Tubes for Pressure Purposes-Stainless Steel Tube 15 EN 10296-2 Welded Circular Steel tubes for Mechanical and General Engineering Purposes-Stainless Steel Tube 16 EN 10297-2 Seamless Circular Steel Tubes for Mechanical and General Engineering Purposes-Stainless Steel Tubes 17 GB 13296 Seamless Stainless Steel Tube for Boiler and Heat Exchanger 18 GB/T 12770 Welded Stainless Steel Tubes for Mechanical Structure 19 GB/T 12771 Welded Stainless Steel Tubes for Liquid Delivery 20 GB/T 14975 Seamless Stainless Steel Tube for Structural 21 GB/T 14976 Seamless Stainless Steel Tube for Fluid Transport 22 GB/T 18705 Welded Stainless Steel Pipes for Decoration 23 GB/T 21832&3 Austenitic-Ferritic(Duplex) Grade of Stainless Steel Welded and Seamless Tubes 24 GB/T 24593 Welded Austenitic Stainless Steel Tube for Boiler and Heat Exchanger 25 JIS G3446 Stainless Steel Pipe for Machine and Structural Purposes 26 JIS G3459 Stainless Steel Pipes 27 JIS G3463 Stainless Steel for Boiler and Heat Exchanger Tubes 28 JIS G3468 Arc Welded Large Diameter Stainless Steel Pipes
According to the purpose of welding steel pipe can be divided into general welding pipe, galvanized welding pipe, oxygen blowing welding pipe, wire casing, metric welding pipe, roller pipe, deep well pump pipe, automobile pipe, transformer pipe, welding thin wall pipe, welding special-shaped pipe and spiral welding pipe. 1 JIS G3441 Alloy Steel Tubes for Machine Purposes 2 JIS G3442 Galvanized Steel Pipes for Ordinary Piping 3 JIS G3443 Coated Steel Pipes for Water Service 4 JIS G3444 Carbon Steel Tubes for General Structure 5 JIS G3445 Carbon Steel Tubes for Machine Structure 6 JIS G3452 Carbon Steel Pipes for Ordinary Piping 7 JIS G3454 Carbon Steel Pipes for Pressure Service 8 JIS G3456 Carbon and Alloy Steel Pipes for High Temperature Service 9 JIS G3460 Carbon and Alloy Steel Pipes for Low Temperature Service 10 JIS G3461 Carbon Steel Boiler and Heat Exchanger Tubes 11 JIS G3462 Alloy Steel Boiler and Heat Exchanger Tubes 12 JIS G3464 Steel Heat Exchanger Tubes for Low Temperature Service 13 JIS G3469 Polyethylene Coated Steel Pipe 14 JIS G3475 Carbon Steel Tubes for Building Structure 15 JIS G7217 Plain End Welded Precision Steel Tube
According to the purpose of welding steel pipe can be divided into general welding pipe, galvanized welding pipe, oxygen blowing welding pipe, wire casing, metric welding pipe, roller pipe, deep well pump pipe, automobile pipe, transformer pipe, welding thin wall pipe, welding special-shaped pipe and spiral welding pipe. 1 GB/T 13793 Steel Pipes with a Longitudinal Electric Resistance Weld 2 GB/T 14980 Major Diameter Welded Steel Pipes for Low Pressure liquid Service 3 GB/T 30063 Longitudinal Submerged Arc Welded Steel Tubes for Structural Purpose 4 GB/T 3091 Welded Steel Pipes for Low Pressure Liquid Delivery 5 GB/T 3092 Welded Steel Pipe for Low Pressure Service 6 GB/T 31315 Cold Drawn or Cold Rolled Precision Weld Steel Tubes for Mechanical Structures 7 GB/T 31940 Bi-Metal Composite Corrosion Resistance Steel Pipe for Fluid Transportation 8 GB/T 32970 Longitudinal Submerged-Arc Welded Steel Pipe for High Pressure Service at High Temperatures 9 GB/T 9711 Steel Pipe for Pipeline Transportation System
