China Factory Supply Hot Rolled Carbon Steel Seamless Pipe
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China Factory Supply Hot Rolled Carbon Steel Seamless Pipe

Standard: ASTM API 5L
Grade: GR.B, X42,X46,X52,X60,X65 etc.
Surface: Bare pipe/Black/varnish/3LPE/Galvanized/According to customer's request

Seamless pipes, also known as seamless steel tubes, are cylindrical pipes manufactured without any welded joints or seams. This production method involves piercing a solid billet of steel to form a hollow tube, which is then processed through various techniques to achieve the desired dimensions and properties. Renowned for their superior performance and reliability, seamless pipes find extensive use across industries such as oil and gas, petrochemical, power generation, and automotive.

These pipes offer several advantages, including high strength, uniformity, and the ability to withstand high pressure and temperature conditions. Their smooth interior surface and absence of weak points make them highly resistant to leaks or failures, ensuring uninterrupted operations in demanding environments. Additionally, seamless pipes exhibit excellent resistance to corrosion, further enhancing their suitability for critical applications.

Available in a range of sizes, thicknesses, and grades of steel, seamless pipes can be tailored to meet specific project requirements. They serve various purposes, including transporting fluids, providing structural support, and serving as heat exchangers. With their versatility and reliability, seamless pipes are indispensable components in numerous industrial processes, contributing to enhanced efficiency and safety.

In summary, seamless pipes are cylindrical tubes manufactured without welded joints or seams, offering high strength, reliability, and corrosion resistance. Their wide-ranging applications across industries underscore their importance in modern infrastructure and manufacturing processes.



Material Standard Technical Grade Usage
Carbon Steel API 5L PSL1&PSL2 Hot finish or cold finish GR.B,X42,X46,X52,
Transportation of oil and gas
ASTM A53 Hot finish or cold finish GR.A ,GR.B
ASTM A106 Hot finish or cold finish GR.A ,GR.B,GR.C
ASTM A179 cold finish A179 Steel pipe for heat exchanger and condenser
ASTM A192 Hot finish or cold finish A192 Carbon steel seamless boiler tube for high pressure
ASTM A210/SA210 Hot finish or cold finish GR.A-1,GR.C Boiler or boiler flue pipe
ASTM A252 Hot finish or cold finish GR.1, GR.2,GR.3 For Structure (Piling)
BS EN10210 Hot finish or cold finish S275JRH,S275J0H,
JIS G3454 Hot finish or cold finish STPG370,STPG410 Transportation of High-pressure fluid

Production Process


Quality Inspection


Packing and Shipping

1. Bundle packing.
2. Beveled end or plain end or varnished as buyer's required.
3. Marking: as per customer's requests.
4. Painting varnish coating on the pipe.
5. Plastic caps at ends.



Q:Any value-added Services?
A:Fottunately for you,we are very experience in this industry. We have equipped our warehouse with the necessities to perform in-housepainting,coating,pipe cutting, etc.

Q:Do you provide samples ? Free or not?
A: Yes, we could offer the sample for free but do not pay the cost of freight.

Q:May I customize the steel pipe?
A:Sure you can, we can produce according to your requirement, you can send the CAD or design drawing.

Q: What payment methods your company accept?
A: We accept T/T, L/C, Western Union.

Q:How does your company do regarding quality control?
A:BV and SGS certificates, production process followed the ISO 9000 system.

Providing high-quality steel products for 10 years , successfully developing over 50+ international markets and continuously developed more high-quality customers.As long as confirming our quality problem , implement the principle of 100% refund and compensation after receiving cargo, ensure the safety of customer funds, ensure customers achieve secure procurement

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