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High Strength ASTM A500 Q355B Steel Square Hollow Section Tube for Steel Structure Building Projects | China Manufacturer
High-strength ASTM A500 and Q355B steel square hollow tubes from a leading Chinese manufacturer. Perfect for steel structure buildings and infrastructure projects. Contact us for material inspection reports and factory-direct pricing.
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API 5L GR.B X42 X46 X52 X60 X65 X70 X80 Seamless Steel Pipe
API 5L Steel Pipes (Grade B/X42-X80) – The Expertise Solution for Oil & Gas Pipelines in Central America
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API 5CT N80 Oil Casing Steel Pipe for Malaysian Oil & Gas and Foundation Projects
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) -
API 5L Grade B X42 Seamless Steel Pipe (PSL1, PSL2)
API 5L Grade B & X42 seamless line pipe in PSL1 and PSL2 quality levels. Manufactured with seamless hot rolling process for consistent wall thickness, no weld defects, and reliable toughness under high-pressure operating conditions. PSL2 grade suitable for sour service and low-temperature environments. Full inspection documentation available, manufactured in accordance with international pipeline specifications.
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API 5L Line Pipe Manufacturer | Seamless Steel Pipe Supplier for Oil & Gas Projects
High-Performance API 5L Steel Pipes (X42–X80) – Engineering Excellence for Southeast Asia and Central America’s Oil & Gas Infrastructure
Royal Steel Group is a leading supplier of API 5L line pipes and seamless oil and gas pipes, offering a complete range of specifications and grades for widespread use in oil, gas, water transportation, and energy-related infrastructure projects. Our API 5L pipes are manufactured to international standards, featuring high strength, long service life, and excellent corrosion resistance, making them suitable for high-pressure oil and gas pipelines worldwide.
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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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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
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