ERW Welded Steel Pipe

ERW Welded Steel Pipe
Product Introduction
ERW welded steel pipe is a kind of straight seam resistance welded steel pipe, using resistance heat welded steel pipe forming. Compared with the traditional welding process, ERW welded steel pipe has higher welding quality and more stable welding performance.
The manufacturing process of ERW welded steel pipe includes the following steps: First, the steel plate is cut into a straight slit of a certain length, and after pretreatment to remove the oil and oxide film on the surface; Then, the resistance heat is used to shape the straight seam welding, and the precise current and voltage control is adopted in the welding process to ensure the requirements of welding quality and stability. Finally, the welded steel pipe quality inspection and surface treatment to ensure that it meets the relevant standards and customer requirements.
ERW welded steel pipe has many advantages, such as high production efficiency, good welding quality and high material utilization rate. In addition, ERW welded steel pipe also has the advantages of energy saving, environmental protection and so on, in line with the requirements of sustainable development of modern industry. Therefore, ERW welded steel pipe is widely used in oil, natural gas, chemical, electric power, shipbuilding, aerospace and other fields of transportation pipeline and pressure vessel manufacturing.
StandardASTM 5L, ASTM A53, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672, EN 10217
Grade (EN)API 5L: PSL1/PSL2  Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70
ASTM A53: GR.A, GR.B
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360-L555
Outer Diameter1/2"-24"
Wall Thickness1.65-20mm (SCH40, SCH80, SCH160, SCHXS, SCHXXS, All Schedules)
Length1-12m or As Customer Requirement
EndsPlain End / Beveled End / Treaded
Surface TreatmentBare, Painting Black, Varnished, Galvanized, Anti-corrosion 3PE PP/EP/FBE coating etc.
ProcessCold Drawn Tube / Hot Rolled Tube
Testing MethodsPressure test, Flaw detection, Eddy current testing, Hydrostatic testing or Ultrasonicexamination and also with chemical and physical property inspection
TypesHydraulic pipe, Boiler Tube, Fluid Pipe, Fire Pipe, Line Pipe, Structure Tube, Mechanical tube
ApplicationWater underground / Sewage / Treatment Steel scaffolding / Transporting oil & gas / Boiler and condenser tubes / High-pressure applications / Chemical processing
Third Party InspectionSGS / BV / MTC etc.
Payment TermsFOB 30%T/T,70% before shipment or CIF 30% pre-payment and the balance to be paid upon B/L (copy)


Product Advantage

The advantages of carbon steel pipes are mainly reflected in the following aspects:


High strength: Carbon steel pipes have high strength and can withstand greater pressure and weight. This makes the carbon steel pipe have good performance in carrying structure and conveying liquid and gas.

Good corrosion resistance: carbon steel pipes have good corrosion resistance and can be used in a variety of corrosive environments.

Excellent high temperature and low temperature resistance: carbon steel pipes can be used in high and low temperature environments without significant shrinkage or deformation.

Light: Compared with other types of steel pipes, carbon steel pipes are lighter in weight and easy to transport and install.

Easy processing and connection: carbon steel pipes can be processed and connected by welding, threaded connection and other ways, with good plasticity.

The price is relatively low: because the raw material cost of carbon steel pipe is low and the production process is simple, its price is relatively low and it has good economy.


In addition, carbon steel pipes are also widely used in transportation and structural support in construction, machinery, petrochemical and other fields. In the construction field, carbon steel pipes are mainly used as support and transportation systems for building structures, such as stair handrails, ground paving, electrical lines, hot water supply pipelines, etc. In the mechanical field, carbon steel pipes are mainly used to manufacture mechanical structures and components. In the field of petrochemical industry, carbon steel pipes are mainly used for transporting oil and gas and chemical substances.


To sum up, carbon steel pipe has a wide range of applications in modern industry because of its excellent function and performance. However, when using carbon steel pipes, it is also necessary to make appropriate selection and treatment according to the specific application scenarios and requirements, and pay attention to its possible limitations and risks.

Certificate Display
Customer Visit

Customer's visit is an important part of our long-term cooperative relationship, every customer's visit is our driving force forward, we value every communication with you. We are very welcome and look forward to your frequent visit, with us to explore more cooperation opportunities, we are committed to provide you with one-stop service, whether it is product consultation, technical support or business negotiations, we will go all out, in order to ensure that your visit is smooth, we have prepared all the necessary support and service, ready to meet your arrival.

Certificate display

All of our products are tested by third party testing organizations and carry quality certificates to ensure that our products do not appear to be of poor quality. If you are interested, we can also send you free samples so that you can have a preliminary understanding of the quality of our products before placing an order.

Packaging & Warehouse

Our stock of products is sufficient and the production line is running well. In addition, we also maintain close cooperation with Baosteel, WisCO, TISCO and other major steel mills to ensure that we can deliver goods to customers in a timely manner.

Frequently Asked Questions(FAQ)

Have you encountered any problems? Here are some of our most frequently asked questions and answers. If there is nothing you would like to see, please contact us

How do I order your steel?

To order our steel, you need to visit our website and then contact our sales team to provide you with the material, model, payment method and terms you want.

How long after the order?

Under normal circumstances, if we have it in stock, we will start delivery within 7-14 days. In other cases that need to be customized, we will communicate with you specifically about the time limit. After the production is completed, we will deliver the car to you according to the mode of transportation you choose.

Do you offer custom products?

Yes, we offer custom service. Can be based on your needs and conditions.

Do you offer a return service if I need to return a product?

Yes, if you need to return a product, we offer a return service. Please note that returns are subject to our return policy, please consult your contact's dedicated account manager for details.

How about the quality of your products? Is there a guarantee?

All our products are subject to strict quality testing and come with a quality guarantee.

How about the quality of your products? Is there a guarantee?

To order our steel, you need to visit our website and then contact our sales team with the material, model, payment method and terms you want.

Do you provide after-sales service?

Yes, after you place an order, we will have a dedicated account manager online 24 hours to solve some problems you may have in use.

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