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ASTM A252 Steel Pipe Piling – Gr.1, Gr.2, Gr.3 | Bridge, Dock & Foundation Use
ASTM A252 Gr.1, Gr.2, Gr.3 Steel Pipe Piles are high-strength welded foundation pipes available in SSAW and LSAW/EFW types, designed for deep foundation, marine construction, bridges, ports and offshore wind projects.
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ASTM A500 HSS Structural Steel Tube | Square & Rectangular Hollow Steel Pipe
Royal Steel Group stocks and manufactures ASTM A500 HSS tubing in square (SHS) hollow sections and rectangular (RHS) hollow sections—Grade B and Grade C, available in sizes from 20×20mm up to 400×400mm square, and 30×50mm up to 400×600mm rectangular, with wall thickness from 1.5mm to 16mm.
Cold-formed to tight dimensional tolerances, our HSS tube delivers consistent yield strength across every length—straight, square-cut ends, uniform wall thickness, and clean weld seams that hold up in load-bearing frames, trailer chassis, building columns, and sign supports.
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ASTM A500 Grade B/C Square Structure Steel Pipes
ASTM A500 Grade B/C Square Steel Pipe – Tailored Solution for Americas
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AS/NZS 1163 C350L0 Structural Steel Tube | Galvanized RHS & SHS Steel Pipe Manufacturer
AS/NZS 1163 C350L0 Structural Steel Tube with ≥350 MPa yield strength and ≥430 MPa tensile strength. Available in RHS, SHS, and galvanized finishes for construction, solar mounting, infrastructure, and industrial applications. Royal Steel Group supplies high-quality structural tubes with global shipping solutions.
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Customized SSAW Steel Structure Pipe Manufacturer in China | Large Diameter Spiral Welded Steel Pipe Supplier
Royal Steel Group offers robust and durable SSAW (spiral submerged arc welded) steel pipes suitable for structural, foundation, water supply, oil and gas, and infrastructure applications. Our large-diameter spiral welded steel pipes are manufactured from high-quality carbon steel and produced according to strict quality control standards, offering superior strength, weld quality, and cost advantages, making them particularly suitable for high-pressure and challenging construction projects.
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ASTM A252 Steel Pipe Piles Gr.1/2/3 – Construction & Marine
ASTM A252 Steel Pipe Piles Gr.1/2/3 are high-strength welded foundation pipes available in SSAW and LSAW/EFW types, designed for deep foundation, marine construction, bridges, ports and offshore wind projects.
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ASTM A500 Grade B Black Carbon Steel Structural Pipe | Round Steel Pipe Supplier for Bulk Projects
Royal Steel Group supplies ASTM A500 Grade B structural pipe in black carbon steel, offering high strength, reliable dimensions, and custom sizes for construction, steel structures, industrial projects, and bulk orders.
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AS/NZS 1163 C350L0 Galvanized Structural Steel Tube | RHS SHS Hollow Section Manufacturer
AS/NZS 1163 C350L0 Structural Steel Tube with ≥350 MPa yield strength and ≥430 MPa tensile strength. Available in RHS, SHS, and galvanized finishes for construction, solar mounting, infrastructure, and industrial applications. Royal Steel Group supplies high-quality structural tubes with global shipping solutions.
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Large Diameter Spiral Submerged Arc Welded Pipe | API 5L X42 X65 ASTM A252 Grade 3 SSAW Structural Steel Pipe Supplier in China
Large diameter spiral submerged arc welded steel pipe in stock. API 5L X42, X65 and ASTM A252 Grade 3 grades, custom length & coatings, fast delivery for global infrastructure projects.
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ASTM A671 CC65 CL 12 EFW Steel Pipes/Tubes for Industrial & Structural Applications
ASTM A671 CC65 CL 12 EFW Carbon Steel Pipes – High-Strength Welded Steel Tubes for Industrial, Structural & Pressure Applications – Custom Sizes & OD/Wall Thickness Available
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Q235B SHS Square Hollow Section Steel Tube GB/T 6728-2017 Structural Steel Tube 40×40-400×400mm
Our Q235B square hollow section (SHS) steel tubes are produced in full compliance with China’s national standard GB/T 6728-2017. The product covers a complete size range, with square side dimensions ranging from 40×40mm to 400×400mm and wall thicknesses from 2.5mm to 16mm.
Widely applicable for conventional steel framing, light structural works, factory building construction and various general engineering & building projects, these square steel tubes feature stable performance and strong practicality.
Standard factory lengths are 6 meters and 12 meters to meet regular engineering demands. Custom cutting service is also provided, with customized maximum length up to 21 meters to cater to diverse on-site construction requirements. -
AS 1074 Carbon Steel Tubes for Water and Fluid Service
AS 1074 carbon steel tubes for general piping and fluid service applications. Explore tube sizes, Light, Medium and Heavy wall thicknesses, galvanized options, and request a quote from Royal Steel Group.
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