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Q345 Q235B ERW Black Round Steel Pipe

Q345 Q235B ERW Black Round Steel Pipe

Q345 Q235B ERW Black Round Steel Pipe,ERW stands for resistance welding, which is characterized by high production efficiency, low cost, material saving and easy automation. Therefore, it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial sectors, and is one of the important welding processes.

"ERW pipe" is a straight seam Resistance Welding pipe, abbreviated as ERW, used for transporting liquid vapor such as oil and natural gas, which can meet various requirements of high and low pressure.

  1. Specification of Q345 Q235B ERW Black Round Steel Pipe



Q345 Q235B ERW Black Round Steel Pipe




API 5L, API 5L PSL1, API 5L PSL2, ASTM A252,GB/T9711


Gr.B, Gr.2, Gr.3,X42,X46,X52,X56,X60


OD: 114-610mm, Thick: 4.5-16mm


6m-12m or customed


Gas transportation ( oil, natrual gas)
Fluid ( water supply and drainage)
Structure (piling, bridge Wharf, road, construction structure, ect)


Bare, Coating, Anti-corrosion, 3PE/3PP/3FBE. etc


Standard Sea Worthy Package or as per customer required

Delivery port 

Tianjin, Shanghai, Qingdao or any other port in China.

  1. Quality detailes of Q345 Q235B ERW Black Round Steel Pipe

  2. ERW steel pipe has the advantages of using hot rolled coil board as raw material, even wall thickness can be controlled at plus or minus 0.2mm. The two ends of the steel pipe follow the American APl standard or GB/T9711.1 standard. In recent years, ERW steel pipe has been widely used by all natural gas pipeline engineering and gas companies as the main steel pipe of urban pipe network.

    Sales Market

  3. FAQ

Q:How can I get some samples?

A:Small samples in store and can provide the samples for free. Catalgue is available, most patterns we have ready samples in stock. Customized samples will take about 5-7days.


Q:What is the MOQ?

A:Stainless steel coils 3 tons, pattern sheets 50pcs.


Q:How does your company do regarding quality control?

A:BV and SGS certificates, production process followed the ISO 9000 system.



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