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ASTM A500 Grade B / Grade C & Q355B Weld Steel Square Tube for Structural Building Construction | Carbon Steel Hollow Section Supplier
Royal Steel Group supplies high-quality ASTM A500 B/C grade and Q355B square steel tubing suitable for various types of building and structural engineering projects. Our square steel tubing boasts reliable weldability and excellent load-bearing capacity, making it ideal for warehouse framing, industrial facilities, and general steel structure projects. These structural steel tubing are available in a full range of standard and custom sizes, with strict quality control at our factory and fast, reliable global shipping services provided through our production base in China.
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API 5CT N80 Oil Casing Steel Pipe for Oil & Gas Drilling High Strength Petroleum Casing Pipe
Common Size:
4.5″ × 0.28″ (~114.3 mm × 7.1 mm)
5″ × 0.33″ (~127 mm × 8.4 mm)
7″ × 0.50″ (~177.8 mm × 12.7 mm)
9 5/8″ × 0.53″ (~244.5 mm × 13.5 mm)
13 3/8″ × 0.62″ (~340 mm × 15.7 mm)
20″ × 1.0″ (~508 mm × 25.4 mm)
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API 5L X52/X60/X65/X70/X80 Smls PipeLine Seamless Steel Tubes
API 5L Steel Pipes (Grade B/X42-X80) – The Expertise Solution for Oil & Gas Pipelines in Central America
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ASTM A53 Grade B Seamless Steel Pipe for Construction, Oil & Gas and Mechanical Applications
ASTM A53 Grade B Seamless Steel Pipe is a general purpose carbon steel pipe for both shape and size which are used in oil & gas exploration, mechanical engineering and industrial application. It possesses strength, weld ability, pressure resistance and durability made it suitable as per customer requirements.
Royal Steel Group, is the leading exporter and supplier of Seamless Steel Pipes, offering consistent and dependable quality for structural, fluid conveyance and industrial applications around the world.
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ASTM A106 GR.B Seamless Carbon Steel Pipe/Tube for Oil, Gas & Power Plants
ASTM A106 GR.B seamless carbon steel pipes – Perfect for oil, gas, power, and industrial pipelines.
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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 -
API 5CT N80 Oil Casing Pipe for Petroleum Drilling Seamless Oilfield Steel Casing
Common Size:
4.5″ × 0.28″ (~114.3 mm × 7.1 mm)
5″ × 0.33″ (~127 mm × 8.4 mm)
7″ × 0.50″ (~177.8 mm × 12.7 mm)
9 5/8″ × 0.53″ (~244.5 mm × 13.5 mm)
13 3/8″ × 0.62″ (~340 mm × 15.7 mm)
20″ × 1.0″ (~508 mm × 25.4 mm)
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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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ASTM A500 Grade B/C Square Hollow Section Steel Tube SHS Structural Steel Pipe
ASTM A500 Grade B/C Square Hollow Section(SHS) Steel Tube is a high strength structural steel tube which is generalized in a standard of ASTM A500. With good load bearing capacity, dimensional accuracy and weldability, it is used widely in steel structure, building frame, workshop, infrastructure construction, mechanical manufacture, etc. It is available in a wide range of dimensions thickness which makes it the best and economical solution for the structure applications all over the world.
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ASTM A106 Gr.B Seamless Carbon Steel Pipe/Tube for High-Pressure Oil, Gas & Power Generation Systems
ASTM A106 GR.B seamless carbon steel pipes – Perfect for oil, gas, power, and industrial pipelines.
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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. -
API 5L X52 / X60 / X65 / X70 / X80 Seamless Line Pipe | SMLS Pipeline Steel Tube Supplier
High-Performance API 5L Steel Pipes (X42–X80) – Engineering Excellence for Southeast Asia and Central America’s Oil & Gas Infrastructure












