-
EN 10219 S235JRH / S275JRH / S355JRH Structural Steel SHS Square Hollow Sections Supplier
EN 10219 S235JRH, S275JRH and S355JRH Structural Steel SHS Square Hollow Sections are cold-formed welded steel tubes designed for use in construction and steel structures such as warehouses, industrial buildings, and infrastructure applications. These square hollow section are manufactured as per EN 10219 which are strong, dimensionally accurate, weldable and corrosion resistant. Available in a variety of sizes and wall thickness, and different surface treatments such as black, oil, painted and hot dip galvanized. Royal Steel Group provides premium SHS steel tubes at the best value, tailored fabrication and global export assistance.
-
ASTM A252 Gr 3 SSAW / LSAW Structural Steel Pipe Piles for Deep Foundation, Bridge, Port & Offshore Wind Projects
High-performance ASTM A252 Gr.3 steel pipe piles manufactured by Spiral Submerged Arc Welding (SSAW) and Longitudinal SAW (LSAW). Engineered for heavy load-bearing foundations in marine and infrastructure projects.
-
ASTM A53 Steel Square Tube – Industrial, Mechanical & Construction Applications
We manufacture ERW welded and seamless square steel tubing conforming to ASTM A53 standards using superior craftsmanship. These tubings are made from robust and durable carbon steel to meet your structural, mechanical, or industrial needs. We offer custom sizes and three finishes: galvanized, black, or red (black tubing with a red coating on the inner wall) to enhance corrosion resistance and durability.
-
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.
-
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.
-
ASTM A53 ERW / Seamless Square Steel Tubing – Custom Sizes Available
Royal Steel Group is the leading supplier of ASTM A53 ERW and Seamless Square Steel Tubing for Building, Steel Erection, Equipment Fabrication and Industrial Use. Our square steel tubes provide exceptional strength, dimensional accuracy, weldability, and corrosion resistance and are manufactured according to ASTM A53. They are available in various sizes, wall thickness and surface finishes, and customized to different project demands worldwide.
-
ASTM A500 Grade B/C SSAW Steel Pipe Manufacturer in China | Large Diameter 219-1626mm Spiral Welded Steel Pipe for Piling
ASTM A500 Grade B / C SSAW Steel Pipe is a kind of high strength spiral welded steel pipe for a variety of applications including deep foundation piling, bridge building, port warehousing, and marine engineering. It is manufactured in big size pipes with the size ranging from 219mm to 1626mm, This SSAW steel pipe can be used for heavy structural which demand high service load.
This SSAW steel pipe is made through a strict quality control, offers consistent performance in soil, water, and offshore applications and can be used for solutions worldwide.
-
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.
-
ASTM A500 Grade B/C Square Structure Steel Pipes
ASTM A500 Grade B/C Square Steel Pipe – Tailored Solution for Americas
-
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.
-
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.
-
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.
- English
- French
- German
- Portuguese
- Spanish
- Russian
- Japanese
- Korean
- Arabic
- Irish
- Greek
- Turkish
- Italian
- Danish
- Romanian
- Indonesian
- Czech
- Afrikaans
- Swedish
- Polish
- Basque
- Catalan
- Esperanto
- Hindi
- Lao
- Albanian
- Amharic
- Armenian
- Azerbaijani
- Belarusian
- Bengali
- Bosnian
- Bulgarian
- Cebuano
- Chichewa
- Corsican
- Croatian
- Dutch
- Estonian
- Filipino
- Finnish
- Frisian
- Galician
- Georgian
- Gujarati
- Haitian
- Hausa
- Hawaiian
- Hebrew
- Hmong
- Hungarian
- Icelandic
- Igbo
- Javanese
- Kannada
- Kazakh
- Khmer
- Kurdish
- Kyrgyz
- Latin
- Latvian
- Lithuanian
- Luxembou..
- Macedonian
- Malagasy
- Malay
- Malayalam
- Maltese
- Maori
- Marathi
- Mongolian
- Burmese
- Nepali
- Norwegian
- Pashto
- Persian
- Punjabi
- Serbian
- Sesotho
- Sinhala
- Slovak
- Slovenian
- Somali
- Samoan
- Scots Gaelic
- Shona
- Sindhi
- Sundanese
- Swahili
- Tajik
- Tamil
- Telugu
- Thai
- Ukrainian
- Urdu
- Uzbek
- Vietnamese
- Welsh
- Xhosa
- Yiddish
- Yoruba
- Zulu
- Kinyarwanda
- Tatar
- Oriya
- Turkmen
- Uyghur