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Custom Manufacturer API 5L 5CT Round Black Seamless & Welded Structure Steel Pipe for Oil and Gas Transportation
API 5L pipe is a carbon steel pipe used for oil and gas transportation. It includes seamless pipe(SMLS) and welded pipe (ERW, SSAW,LSAW).
It has a wide range of commercial applications:
Foundation Engineering: load-bearing piles, driven piles, threaded micropile casings, and geostructure solutions;
Construction and Protection: composite walls, structural sections, bridge abutments and dams, storm protection, and underground garages;
Energy and Infrastructure: solar solutions, signposts, towers and transmission lines, and horizontal pipelines;
Resource Development: mining-related applications. -
ASTM A252 Grade 1/2/3 LSAW Steel Pipe | OD 508-1422mm Large Diameter Foundation Steel Pipe
LSAW steel pipes, conforming to ASTM A252 standards, are high-strength, large-diameter steel pipe piles suitable for foundation engineering, bridge construction, marine engineering, and heavy infrastructure projects. LSAW steel pipes offer excellent structural shape, good weldability, and load-bearing capacity, making them suitable for deep foundation applications. Outer diameters range from 508 to 1422 mm. These ASTM-compliant LSAW steel pipes are designed according to current industry specifications and standards, ensuring high strength, uniform wall thickness, and superior durability even in harsh soil and saltwater environments.
These LSAW steel pipes are suitable for bridge pile foundations, port terminals, offshore platforms, high-rise building foundations, and industrial infrastructure. Collaboration with numerous experienced EPC contractors and global building solutions ensures their long service life, high corrosion resistance (with optional coatings), and ease of installation.
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Hot Dip Galvanized Steel Pipe ASTM A53 Zinc Coated GI Pipe for Construction and Water Transport
Hot Dip Galvanized Steel Pipe is a steel pipe coated with a layer of zinc through a hot-dip galvanizing process. The pipe is first manufactured (welded or seamless), then immersed in molten zinc to form a strong, corrosion-resistant protective layer.
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API 5L Grade B X42 X52 X65 Carbon Steel Line Pipe Seamless and Welded Steel Pipe
API 5L Steel Pipe Supplier | X42 X52 X65 Seamless & Welded Line Pipe
Looking for a trusted API 5L steel pipe supplier for oil & gas or pipeline projects?
Royal Steel Group supplies seamless steel pipe, ERW pipe, LSAW pipe, and SSAW pipe, meeting PSL1 / PSL2 standards for high-pressure applications.
✔ Full Grades: X42 – X80
✔ Large Stock & Fast Delivery
✔ Third-party Inspection Available
✔ Global Export Experience -
ASTM A53 GI Galvanized Steel Pipe | High-Quality Steel Pipe Supplier, Large Inventory
As one of the metal pipes used in construction, galvanized steel pipes are widely used in building water supply, drainage, gas, steam and other transportation pipelines because of their corrosion resistance, rust-free, strong and durable properties.
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API 5L Standard Line Pipe (API Line Pipe) – API 5L Seamless Pipe (API Seamless Pipe) of API 5L Material Grades: API 5L Gr B (API 5L B), API 5L Gr B PSL2, API 5L X42, API 5L X60 (X60 Pipe), API 5L X65 (API 5L X65 Pipe), API 5L X70 (X70 Pipe), API 5L X80, with PSL2 Pipe & API Sch 40 Pipe...
API 5L Line Pipes are Superior Grade Carbon Steel Pipe used for Oil and Gas line Pipe which have the property of transporting oil and gas. Manufactured to the stringent specifications of API 5L, these tubes have high tensile, impact and corrosion resistance.
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Ductile Iron Pipe Supplier | Cement Lined Water Transmission Pipe DN80-DN2600
Ductile iron pipes lined with cement for dependable water delivery from now on in complete dimension range from DN80 to DN2600. The high strength ductile iron and the durable cement mortar lining system provides excellent corrosion resistance, smooth hydraulic performance and long service life. They comply with ISO 2531 / EN 545 and are the best choice for the supply of drinking water, for municipal networks and within industrial water systems. View Our additional Stock at Royal Steel Group.
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New Arrival Black Cast Iron Tube China Factory High Quality Ductile Cast Iron Pipe
Ductile iron pipes refer to pipes made by high-speed centrifugal casting using a centrifugal ductile iron machine after adding a nodulizing agent to cast molten iron above No. 18. They are referred to as ductile iron pipes, ductile iron pipes and ductile cast pipes. It is mainly used for the transportation of tap water and is an ideal material for tap water pipelines.
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Factory Supply Superior ISO2531EN545 EN598 C40 C30 C25 K9 DN80 DN100 DN150 DN250 DN300 DN500 DN600 DN700 DN800 Ductile Iron Pipe
Wholesale Ductile Iron Pipes ISO 2531 / EN 545 / EN 598 Ductile Iron Pipes are used for potable water supply, sewage systems, conduit networks, and urban construction. Pressure ratings C25, C30, C40, and K9 with dimensions from DN80 to DN800 are available. Under heavy quality control and inspection, They have lined with cement mortar, zinc coated and protected by bitumen to make sure an effective result under the tough environment all over the world.
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Ductile Iron Pipe Manufacturer in China | ISO 2531 & EN 545 K7 K8 K9 DI Pipe Supplier
Royal Steel Group supplies ISO 2531 and EN545 ductile iron pipes from DN80 to DN2600. Available in K7, K8, K9 and C Class with cement mortar lining and zinc coating for municipal water, sewage and irrigation projects worldwide.
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Factory 2×2 Galvanized Hollow Section 14 Gauge Tubing Iron Square Steel Pipes
Our Galvanized Square Pipes are manufactured from high-quality carbon steel and coated with a durable zinc layer, providing excellent corrosion resistance, long service life, and strong structural integrity. Ideal for construction, industrial frameworks, scaffolding, and furniture applications.
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40×40 Square Tube SHS Hot Dipped Galvanized Square Steel Pipe
Galvanized square pipe is a kind of hollow square cross section steel pipe with square section shape and size made of hot rolled or cold rolled galvanized strip steel or galvanized coil as blank through cold bending processing and then through high frequency welding, or the cold formed hollow steel pipe made in advance and then through hot dip galvanized square pipe.












