Custom Fire Fighting Pipes,Seamless and Welded Steel Pipes Manufacturer Since 1991.
Welded Steel Pipes
At Baolai Steel, we specialize in supplying a wide range of welded steel pipes designed for various applications. Our product line includes ERW steel pipe, fire fighting steel pipe, EMT and IMC conduit pipes, and hollow section steel pipes, all engineered for durability and reliability. Whether you’re working on construction, infrastructure, or industrial projects, our welded pipe solutions offer an efficient and cost-effective way to transport liquids, air, and gases.
From spiral welded steel pipe to carbon steel welded steel pipe, our offerings are manufactured to meet international standards and ensure optimal performance. With advanced production technologies such as high frequency resistance welding (HFW), Baolai Steel delivers consistent quality and structural integrity across every welded pipe product.
Explore our full selection of welded steel pipes below to find the ideal solution for your next project.
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Optimized Welded Steel Pipe Product Description
BAOLAI provide welded pipe for three types, ERW steel pipes are include pre-galvanized steel pipe (EMT & IMC), hot dipped galvanized steel pipe, fire pipe, square and rectangular steel pipe, for large size, we have LSAW and SSAW, contact us for a quote.
Please note: currently not hiring welders, thanks for your attention!
ERW steel pipes are manufactured by low-frequency or high-frequency resistance “resistance”. They are round pipes welded from steel plates with longitudinal welds. Square and rectangular steel pipes are to directly extrude the produced welded tube into the desired shape.
Fire pipe is to use the produced ERW steel pipe for pipe end groove processing and epoxy powder coating, for carrying water or other liquid to connect firefighting equipment.
The Type of Welded Steel Pipe
According to the shape of the weld, it can be divided into a straight welded pipe and a spiral welded pipe.
Electric welded steel pipes are used in oil drilling and machinery manufacturing. The furnace welded pipe can be used as a water gas pipe, etc.
The large diameter straight seam welded pipe is used for high pressure oil and gas transportation, etc.
The spiral welded pipe is used for oil and gas transportation, pipe piles, piers and the like.
Welded Steel Pipe Applications and Advantages
Application
1.Mostly used for transporting water, oil, natural gas, etc.
2.It is also used in structure fields, fire protection system, etc.
2.It is also used in structure fields, fire protection system, etc.
Advantage
1.High efficiency, low cost than seamless steel pipe.
2.Straight seam welded pipe has simple production process, high production efficiency, low cost and rapid development.
3.Material saving, easy to automate.
2.Straight seam welded pipe has simple production process, high production efficiency, low cost and rapid development.
3.Material saving, easy to automate.
Welded Steel Pipe Services we offer
Grooving
Our steel pipes are available with cut and roll grooves. Cut and roll grooving can be done in any style according to industry standards.
Beveling
We can apply any type of Bevel to any degree desired. Beveling can be applied to the surface of pipes of any size or diameter.
FBE/ 3PE/ 3PP
FBE anti-corrosion tube is use of electrostatic spraying process coated epoxy powder coating, a film. Fire pipes are often sprayed with red epoxy. 3PE/ 3PP coating tube is for oil and gas or water transprtation.
FAQ
1: What is LSAW steel pipe and what are its main applications?
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LSAW (Longitudinal Submerged Arc Welded) steel pipe is manufactured by bending and welding wide steel plates along the longitudinal axis using submerged arc welding. This process produces pipes with excellent wall thickness uniformity and high pressure resistance. LSAW steel pipes are widely used in high-pressure oil and gas transportation pipelines, offshore structural piling, bridge piers, and large-diameter water supply infrastructure projects.
2: What is ERW steel pipe and how does it differ from LSAW pipe?
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ERW (Electric Resistance Welded) pipe is produced by forming steel coil into a tubular shape and welding the longitudinal seam using electric resistance. Compared with LSAW pipe, ERW is generally used for smaller diameter ranges and applications requiring consistent dimensions and efficient production, while LSAW is commonly selected for larger diameters and heavier-wall pipeline applications. The final selection should be based on pipe size, pressure requirements, applicable standard and project specifications.
3: What standards are commonly available for welded steel pipes?
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Welded steel pipe standards depend on the manufacturing method and intended application. Baolai Steel supplies welded pipes according to project requirements, including standards used for pipeline, structural and mechanical applications. Buyers should specify the required standard, steel grade, outside diameter, wall thickness and end finish when requesting a quotation.
4: What types of welded steel pipes do you manufacture and supply?
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We manufacture and supply a full range of welded steel pipe types, including: ERW pipes — for structural, mechanical, and oil/gas drilling applications LSAW pipes — for high-pressure long-distance pipeline transportation SSAW (Spiral Welded) pipes — for oil and gas transportation, pipe piles, and bridge piers Fire fighting pipes — UL/FM certified, for sprinkler and fire suppression systems All products are available with optional processing services including grooving, beveling, and FBE/3PE/3PP anti-corrosion coating.
5: What surface treatment and processing services are available for your welded pipes?
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We offer comprehensive in-house processing to ensure pipes are project-ready upon delivery: Grooving — cut and roll groove options in any industry-standard style Beveling — any angle and degree, compatible with all pipe diameters Anti-corrosion coating — FBE (epoxy powder coating), 3PE, and 3PP coating for oil, gas, and water transportation pipelines; fire pipes are available with red epoxy spray coating per fire protection standards.
