Brisk Steel Factory
Advanced production process: Top hollow sections manufacturer and suppliers has perfect production equipment and production lines, mostly using a variety of production technologies such as ERW, LSAW, SEAMLESS, etc., to manufacture various specifications of hollow section steel.
High-quality products: Top Hollow Sections manufacturers And Suppliers use high-quality raw materials, in strict accordance with international standards of the production process can ensure that products have excellent performance and stability.
Extensive market and excellent service: Market coverage enables them to better understand market needs and changes, and to respond quickly to customer needs. Focusing on customer service, we provide services such as quick response, professional consultation and after-sales support.
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![Bare SAWL Steel Pipe]()
Bare SAWL Steel PipeBare SAWL steel pipe (also called bare LSAW pipe) leaves our mill with no pre-applied coating. For buyers who coat, line, galvanize or drive the pipe themselves, that is the point: there is nothing -
![LSAW Pipe By Surface Treatment]()
LSAW Pipe By Surface TreatmentThe steel decides how strong an LSAW pipe is. The surface treatment decides how long it lasts. We supply LSAW pipe with the full range of external coatings and internal linings, applied and inspected -
![Large Diameter Thick Wall LSAW Pipe]()
Large Diameter Thick Wall LSAW PipeWe manufacture large diameter thick wall LSAW pipe (longitudinal submerged arc welded, also called SAWL) for projects where the wall is carrying real load: high internal pressure, deep burial, pile -
![Thick Wall LSAW Pipe]()
Thick Wall LSAW PipeWe manufacture thick wall LSAW pipe from single heavy plates. Our workshop defines thick wall as 25 mm and above. In this range the plate and the weld matter more than the pipe’s shape, so we put our -
![Large Diameter LSAW Pipe]()
Large Diameter LSAW PipeWe manufacture large diameter LSAW (longitudinal submerged arc welded) steel pipe for oil and gas transmission, water transmission mains, penstocks, and heavy structural and foundation work. Our -
![LSAW Pipe By Size]()
LSAW Pipe By SizeWe manufacture LSAW (longitudinal submerged arc welded) steel pipe from 406 mm to 1,420 mm outside diameter and from 8 mm to 60 mm wall thickness. Because every pipe is formed from steel plate by the -
![LSAW Pipe For Offshore Engineering]()
LSAW Pipe For Offshore EngineeringWe manufacture LSAW (longitudinal submerged arc welded) steel pipe for offshore engineering: jacket legs and braces, conductor and caisson tubulars, pile sleeves, platform supports and offshore -
![LSAW Pipe For Piling]()
LSAW Pipe For PilingWe manufacture LSAW (longitudinal submerged arc welded) steel pipe piles for bridge foundations, port structures, high-rise bases and heavy industrial plants. Each pile is formed from a single steel -
![LSAW Pipe For Oil And Gas]()
LSAW Pipe For Oil And GasThe same LSAW pipe will not suit a gas trunk line, a driven pile and a bridge column equally well. Each job puts a different load on the pipe: internal pressure, soil or sea water, driving force, or -
![LSAW Pipe By Applicatione]()
LSAW Pipe By ApplicationeThe same LSAW pipe will not suit a gas trunk line, a driven pile and a bridge column equally well. Each job puts a different load on the pipe: internal pressure, soil or sea water, driving force, or -
![JCOE LSAW Steel Pipe]()
JCOE LSAW Steel PipeBrisk Steel supplies JCOE LSAW steel pipe for oil and gas transmission, water mains, piling and heavy structures. The plate is formed progressively, welded on both sides by submerged arc welding, -
![LSAW Pipe By Manufacturing Process]()
LSAW Pipe By Manufacturing ProcessThe way an LSAW pipe is formed decides its size range, roundness, lead time and minimum order size long before any test certificate is issued. We manufacture LSAW pipe on the JCOE forming route. This
What is The LSAW Pipe?
LSAW pipe is fabricated by bending solid steel plates into tubular shape, then completing internal & external double-sided submerged arc longitudinal welding. Main forming crafts: JCOE, UOE; JCOE is the mainstream production method for Brisk SteelBRISK STEE...
In heavy civil engineering, deep-water offshore construction, and high-pressure oil and gas transmission, large-diameter piping systems must withstand extreme internal pressures, severe earth backfill loads, and bending stresses. LSAW (Longitudinal Submerged Arc Welded) Steel Pipes represent the primary manufacturing solution for heavy-wall, large-diameter pipe applications.
What Can We Offer?
| Parameter | Specifications & Capabilities |
| Standard Compliance | API 5L (PSL1 & PSL2), EN 10219, EN 10210, ASTM A252, ASTM A53, EN 10217 (pressure piping) |
| Available Steel Grades | Grade B through X80, S275J0H/J2H, S355J0H/J2H, S355NH, S460NH, Grade 2 & 3 |
| Outer Diameter (OD) | 16" to 60" (406mm to 1442mm) |
| Wall Thickness (WT) | 9mm to 50mm |
| Standard Lengths | 5.8m, 6.0m, 11.8m, 12.0m, or custom lengths up to 18.0m |
| End Execution | Square Cut Plain Ends (Deburred) or Factory Precision Beveled Ends (30° - 35°) |
| Surface Treatment: |
External Coatings: 3-Layer Polyethylene (3LPE), 3-Layer Polypropylene (3LPP), or Fusion Bonded Epoxy (FBE) Internal Coatings: Food-grade liquid epoxy or cement mortar linings for water systems, or flow-efficiency coatings for gas lines. |
Product Features
Large Diameters with Heavy Wall Capacities
Unlike ERW processes (which are generally limited to wall thicknesses under 16mm–20mm), LSAW manufacturing can utilize heavy structural plates, producing wall thicknesses up to 50mm or more and outer diameters reaching 60 inches (1524mm).
Predictable Stress Distribution & Superior Buckling Resistance
LSAW pipes feature a single straight longitudinal seam. Under heavy compressive driving forces (such as impact pile driving) or deep-sea external bending loads, a straight seam exhibits predictable stress transfer compared to spiral-welded (SSAW) pipes, providing high resistance to localized buckling.
Tight Geometric Control for Efficient Field Assembly
Mechanical cold expansion ensures consistent outer diameter concentricity and roundness. This precise geometry simplifies field joint alignment and speeds up root-pass girth welding during pipeline laying and structural assembly.
Application of LASW Pipe
Oil and Gas Transmission: LSAW pipes are widely used in the oil and gas industry for transporting crude oil, natural gas, and refined products over long distances. Their high strength and ability to withstand high-pressure environments make them suitable for this critical application.
Pipeline Construction: LSAW pipes are often employed in the construction of pipelines for various purposes, including oil and gas transmission, water distribution, and even slurry transportation. They are known for their uniformity and reliability in conveying fluids and substances.
Water Infrastructure: LSAW pipes are used in water supply and sewage systems, helping to transport clean water to cities and towns while also carrying away wastewater for treatment. Their durability and resistance to corrosion are valuable in these applications.
Construction and Structural Applications: LSAW pipes can be used in the construction of various structures, such as bridges, piers, buildings, and other engineering projects where large-diameter pipes are required for load-bearing purposes.
Piling: In civil engineering, LSAW pipes are often used as foundation piles for structures like buildings, bridges, and offshore platforms. Their ability to bear heavy loads and their resistance to external pressures make them suitable for this purpose.
Marine Applications: LSAW pipes are used in marine environments for applications such as underwater pipelines, offshore oil rigs, and submarine cable installation due to their robustness and resistance to corrosion.
Mining: In the mining industry, LSAW pipes can be utilized for conveying materials such as minerals, ores, and slurries. They are well-suited for applications where materials need to be transported over long distances or through challenging terrains.
FAQ
01.What is the difference between ERW and LSAW pipes?
02.How to ensure the welding quality of LSAW steel pipes?
03.What does LSAW stand for?
04.What should be paid attention to during the installation and use of LSAW steel pipes?
Ensure the straightness and sealing of the steel pipe to avoid uneven force or leakage caused by improper installation.
Carry out maintenance and inspection regularly to promptly detect and deal with problems such as corrosion and scaling.
05.What services can we offer?
Accepted delivery terms: Free On Board (FOB), Cost and Freight (CFR), Cost and Insurance and Freight (CIF), etc.
Accepted payment methods: Telegraphic Transfer (T/T), Letter of Credit (L/C), etc.
06.Are you trading company or manufacturer ?
Tianjin Brisk Metalwork Co., Ltd. is well-known as one of the leading lsaw pipe manufacturers and suppliers in China. If you're going to buy high quality lsaw pipe at competitive price, welcome to get more information from our factory.
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