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Seamless Steel Pipe

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SinoSources Best Choice Seamless Steel Pipe Manufacturer, Supplier and Exporter Platform

Seamless steel pipes are the basic need of oil & gas industry, construction sites, manufacturing units and various industrial application and domains. They are designed and manufactured by using high quality raw material and durable metals. Stainless Steel is the major source.They are designed and developed in various lengths, shapes and sizes that you can choose according to your choice and requirement.Now, you can buy these pipes directly from top seamless steel pipe manufacturers in China who are offering you supply worldwide. SinoSources has been able to bring together top and trusted seamless steel pipe manufacturer, supplier and exporter from China.The Suppliers offer a variety of seamless steel pipes that are specifically designed and developed to allow for durability.

Technology Used to Manufacture the Seamless Steel Pipes and ERW Pipes

  • The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Applicable in for High-pressure applications such as Hydrocarbon Industries, Refineries, Oil & Gas Exploration & Drilling, Oil & Gas Transportation and Air and Hydraulic cylinders, Bearings, Boilers, Automobiles etc.

  • ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured up to 24" OD. ERW pipe cold made by the ribbon of steel pulled by a set of pliers and shaped in to a tube that's fused through an electric fee. It's largely utilized for non - moderate pressure applications like transport of oil / water.

  • Typical dimensions for ERW Steel Pipe include 2 3/8 inch OD into 24 inches OD in various lengths to over 100 feet. Surface finishes are offered in bare and protected processing and formats can be dealt with on site to customer specifications.

SinoSources has in the recent past been able to combine highly professional Seamless Steel Pipe Manufacturers to produce these pipes. The kind of technology our Manufacturers apply are up to date and modern to allow for quality and durable end products.

How to Identify Seamless or Electric Resistance Welded (ERW) Stainless Steel pipes.

The main method used to identify whether a pipe provided is seamless or Electric Resistance Welded,One can Simply Read Through the stencil printed over the side of the tube.


  • Type E is ERW.

  • Type F is Furnace but Welded.

  • When it is printed as ASTM A53, The S Means it is Seamless.

There are other methods that are used to identify the two types but the above three methods are the simplest means to recognize whether the pipe is either seamless or Electric Resistance Welded.
In a Nutshell, Seamless Steel Pipe rarely has defects.However, welding comes with an intrinsic defect all through the duration of each tubing, also as mentioned previously. Intuitively this notion is readily accepted by buyers and designers who have modest working experience with the several services and products. Each item manufacturing and form procedure has its inherent difficulties and possible defects.Consumers need to Understand exactly what those issues and flaws are and also how they may impact particular product and it's applications.They then are able to make a  decision based on reality of the product features as opposed to what people think of.

The Major Difference Between Seamless Steel Pipes and Electric Resistance Welded (ERW) Pipes

  • ERW (Electric Resistance Welded) pipes are all welded longitudinally, Constructed from Strip / Coil and will be fabricated up to 2-4" OD. ERW pipe made by the ribbon of steel pulled by a set of pliers and shaped into a tube that's fused through an electric fee. It's largely utilized for non - moderate pressure applications like transport of oil / water.

  • Seamless pipe is fabricated by extruding the alloy into the required period; hence ERW pipe has a welded joint into its own crosssection, whereas seamless pipe will not need any joint in its own crosssection through-out its span.

  • In Seamless pipe, then there are no joints or welding and are made From strong round billets. The easy pipe has been finished to wall and dimensional depth specifications in sizes by 1/8 inch to 26 inch OD.Dimensions for ERW Steel Pipe include 2 3/8 inch OD into 24 inches OD in various lengths to over 100 feet. Surface finishes are offered in bare and protected processing and formats can be dealt with on site to customer specifications.

Why Seamless Steel Pipe from SinoSources Platform is the Best Choice

  • A team of Manufacturers,Exporters and Suppliers who have been working with the platform for years and therefore have experience and proven track record.

  • Our Suppliers at SinoSources are capable of providing customized seamless steel pipes,you will get precise solutions from here all your needs.

  • At SinoSources, prices are reasonable and will go well your budget and quality is not compromised.

  • Our main motive is to bring you something advanced and innovative; while we focus on quality and international safety standards.

  • Convenient sourcing of goods,cheap timely delivery and tracking of goods to the delivery point.

For more information about selection of the pipes here at Sinosources,Please go through our collection of pipes and tubes that are offered to fulfill your requirement. We keep our stock maintained and updated time to time to deliver you something advanced and innovative. So what you are waiting for, feel free to contact via any convenient mode of communication to choose the best quality seamless steel pipe.


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