Jiangyin, Jiangsu, China – September 16, 2026
High-Yield ABS Certified EQ47R LSAW Steel Pipe for Marine & Offshore Structures
Hunan Tubular Steel Industry Co., Ltd. manufactures ultra-heavy wall LSAW Steel Pipes (Longitudinal Submerged Arc Welded) engineered for high-stress offshore, structural, and subsea industrial applications. Built with high-strength EQ47R steel grade and fully certified under ABS RULES 2019 and AWS D1.1-2015, our large-diameter pipes provide unmatched structural integrity, superior mechanical properties, and low-temperature impact toughness in harsh marine environments.
Strict Compliance & Mechanical Superiority
To support extreme load-bearing requirements, our ABS certified EQ47R Lsaw Pipe undergoes strict quality control and heat-treatment procedures (Quenched & Tempered / TMCP) to guarantee excellent yield strength, tensile performance, and toughness (tested down to -40°C Charpy V-notch standards).
ABS Class Certification: Complies with ABS 2019 Rules for Building and Classing Offshore Structures and Marine Vessels.
Structural Welding Compliance: Precision seam welding executed in strict adherence to AWS D1.1/D1.1M structural welding codes.
Full MTC Traceability: Every pipe length features 100% heat number, pipe number, and non-destructive testing (NDT) traceability for complete project documentation audit compliance.
Engineered for Heavy-Duty Marine & Offshore Applications
Our heavy-wall LSAW steel pipes serve as critical load-bearing and fluid-conveying components across complex offshore installations:
Offshore Jacket Legs & Tubular Structures: High-capacity structural members for fixed oil & gas platforms, jack-up rigs, and offshore wind turbine jacket foundations.
Offshore Piling & Port Foundations: Durable offshore piling steel pipe designed to withstand heavy cyclic loading, wave force fatigue, and intense marine soil driving conditions.
Subsea & Heavy-Duty Energy Pipelines: Heavy-wall fluid conduits engineered to endure internal high pressure and external hydrostatic subsea conditions.
Production Capabilities & QC Verification
Large OD & Heavy Wall Thickness: Tailored outer diameters and wall thicknesses tailored for custom heavy engineering projects.
100% Non-Destructive Testing (NDT): Ultrasonic (UT), Radiographic (RT), and Magnetic Particle Inspection (MPI) to verify complete seam weld integrity.
Surface Protection Options: Raw finish, inorganic zinc-rich primer, or external 3LPE/3LPP anti-corrosion coatings available upon request.
Request Your Engineering Specification & RFQ Today
Partner with a qualified steel pipe manufacturer for your next ABS-classed offshore or heavy structural project. Contact our engineering team for technical datasheets and competitive direct quotes.
Company: Hunan Tubular Steel Industry Co., Ltd.
Website: www.tubularpiles.com
E-mail: admin@tubularpiles.com
Cell & WhatsApp: +86 13875883111
About Us
Hunan Tubular steel works as Sanhe heavy industry Co., Ltd. export window in the world market started from 2012. For many years, we are committed to providing reliable and valuable solutions for projects and operations to our clients and partners around the world.
Media Contact
Company Name: Hunan Tubular Steel Industry Co., ltd.
Contact Person: Media Relations
Email: Send Email
Country: China
Website: https://www.tubularpiles.com/