Seamless Steel Pipe

A seamless carbon steel pipe is a type of steel pipe that is manufactured without any welding seam or joint. It is produced by extruding the metal to the desired length, resulting in a pipe with uniform thickness and consistent quality. Seamless carbon steel pipes are commonly used in various industrial applications due to their durability, strength, and ability to withstand high pressures and temperatures.


Product TypeSeamless Carbon Steel Pipe / Line Pipe
SizeOuter DiameterSeamless:17-914mm, 3/8″-36″
 Wall ThicknessSCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80                                            SCH100 SCH120 SCH140 SCH160 XXS
 Length 5m-14m or as customer’s actual request
EndsPlain end/Beveled, protected by plastic caps on both ends, cut quare, grooved, threaded and coupling, etc.
TechniqueHot Rolled Or Cold Rolled
StandardAPI A106 GR.B A53 Gr.B seamless steel pipe / ASTM A106 Gr.B A53 Gr.B steel tube AP175-79, DIN2I5L, ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A179/A192/A213/A210 /370 WP91, WP11, WP22 DIN17440, DIN2448, JISG3452-54
MaterialAPI5L, Gr.A&B, X42, X46, X52, X56, X60, X65, X70, X80, ASTM A53Gr.A&B, ASTM A106 Gr.A&B, ASTM A135, ASTM A252, ASTM A500, DIN1626, ISO559, ISO3183.1/2, KS4602, GB/T911.1/2,SY/T5037, SY/T5040STP410, STP42
Surface TreatmentBare, Painting black, varnished, galvanized, anti-corrosion 3PE PP/EP/FBE coating, transparent oil, epoxy coating, etc.
ShapesRound, Square, Rectagular, Oval, Special Shape according to csutomer’s requirement
Technical MethodsHot-rolled/Cold-drawn/Hot-expanded
Testing MethodsPressure test, Flaw detection, Eddy current testing, Hydro static testing or Ultrasonic examination and also with chemical andphysical property inspection, Chemical Component Analysis, Mechanical Properties, Exterior Size Inspection, hydraulic testing, etc.
PackagingSmall pipes in bundles with strong steel strips, large pieces in loose; Covered with plastic woven bags; Wooden cases; Suitable forlifting operation; Loaded in 20ft 40ft or 45ft container or in bulk; Also according to customer’s requests
Application1. Automotive and mechanical pipes. 2. Petroleum cracking pipes. 3. High Pressure Boiler Pipe. 4. Low and middle pressure fluid transportation pipeline. 5. Chemical fertilizer equipment pipes. 6. Heat exchanger pipes 7.Conveying oil gas and water
Advantages1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port.
Trade TermsFOB CIF CFR
MOQ10 tons
Supply Capacity5000 T/M
Delivery TimeUsually within 7-10 days after receipt of advance payment

Available Grades

Product NameMaterialExecution StandardSpecificationsApplication
Alloy Pipe12Cr1MoVGGB5310-2008∮8-1240*1-200Seamless steel pipe for high-temperature, low-temperature, and corrosion-resistant applications in industries such as petroleum, chemical, power, and boilers.
Cr5Mo<A335P5>ASTM SA335 
Cr9Mo<A335P9>ASTM SA213 
Low-Temperature Pipe16MnDG, 10MnDG, 09DGGB/T18984-2003∮8-1240*1-200Seamless steel pipe for low-temperature pressure vessels and heat exchangers ranging from -45℃ to -195℃.
09Mn2VDG, 06Ni3MoDGASTM A333 
ASTM A333Grade1  
ASTM A333Grade3  
ASTM A333Grade4  
ASTM A333Grade6  
ASTM A333Grade7  
ASTM A333Grade8  
ASTM A333Grade9  
ASTM A333Grade10  
ASTM A333Grade11  
High-Pressure Boiler Pipe20GGB5310-1995∮8-1240*1-200Seamless steel pipe for manufacturing high-pressure boiler heating tubes, headers, and steam pipes.
High-Pressure Fertilizer Pipe10#GB6479-2000∮8-1240*1-200Seamless steel pipe for chemical equipment and pipelines with operating temperatures from -40℃ to 400℃ and pressures from 10-32Mpa.
Petroleum Cracking Pipe10#GB9948-2013∮8-630*1-60Used for furnace tubes, heat exchanger tubes, and pipelines in petroleum refining plants.
Low to Medium Pressure Boiler Pipe10#GB3087-2008∮8-1240*1-200Suitable for manufacturing various structural low and medium-pressure boilers and locomotive boilers.
Fluid Transport Pipe10#, 20#GB/T8163-2008∮8-1240*1-200General seamless steel pipe for fluid transportation.
ASTM A106A,B,C, A53A,BASTM A106, A53 
16Mn<Q345A.B.C.D.E>ASTM A53 
General Structural Pipe10#, 20#, 45#, 27SiMnGB/T8162-2008∮8-1240*1-200Suitable for general structures, construction supports, machining, etc.
ASTM A53A,BGB/T17396-1998 
16Mn<Q345A,B,C,D,E>ASTM A53 
Oil CasingJ55, K55, N80, L80API SPEC 5CT∮60.23-508.00Casing used for extracting oil or gas in oil wells. Casing is used as the well wall in oil and gas wells.
C90, C95, P110ISO11960*4.24-16.13
Pipeline PipeA, B, X42, X46, X52, X56, X60, X65, X70, X80API SPEC 5L∮32-1240*3-100Used for oxygen, water, and oil transportation in the petroleum and natural gas industries.
L245, L290, L360, L415, L450GB 
Straight seam steel pipe20#Q195Q215A,BGB/T13793-1992∮32-630*1-30Suitable for general structural supports, low-pressure fluid transportation, etc.
spiral steel pipeQ235A-B、Q345A-ESY/T5037-2000219-2820*4-20Suitable for steel pipes for low-pressure fluid transportation

Our Certifications

Packaging and Shipping

1. Wood pallet packing cover with water-proof paper
2. Steel pallet packing cover with water-proof paper
3. Wood box packing
4. Steel pallet packing cover with steel box
5. In bundles with steel strip no extra packing

package and shipment


  • High Precision Dimension: The carbon steel profile has excellent processing technology good molding and easy welding. Thickened material, stable performance, and high hardness, not easy to rust.
  • Low Friction: Low dissipation factor. More durable than most ordinary domestic bearings. Lower operating costs​
  • Life Is Long: High-quality steel through strict quality inspection, quality control layer-by-layer detection, and reliable quality, long service life.
  • Customization: Drawings and samples can be processed and customized. Conventional large-scale spot, non-standard customization.
Scroll to Top