Carbon Steel SAW, LSAW & HSAW Pipes – Heavy-Duty Performance

Carbon Steel SAW, LSAW, and HSAW Pipes & Tubes are robust piping solutions engineered for high-performance industrial applications. These pipes are manufactured using advanced submerged arc welding techniques that ensure structural integrity, dimensional precision, and excellent resistance to pressure and environmental stress. With a focus on quality and consistency, these pipes are fabricated using top-grade steel and advanced forming and welding equipment, making them suitable for both standard and heavy-duty operations. Our production and supply reach key markets across India, the United Arab Emirates (UAE), the Kingdom of Saudi Arabia (KSA), Kuwait, Qatar, the Sultanate of Oman, Iran, and Iraq, offering timely solutions tailored to regional specifications and international standards.

Technical Overview

These carbon steel pipes are categorized based on their welding configurations: Longitudinal Submerged Arc Welded (LSAW) and Helical Submerged Arc Welded (HSAW). To produce LSAW pipes, flat steel plates are shaped into a circular form and then joined with a weld that runs along the length of the pipe, forming a straight-seam connection. This method offers superior axial strength and is commonly used for high-pressure oil and gas transmission. In contrast, HSAW pipes are formed by spiral welding of steel coils, allowing for longer pipe lengths and cost-efficient large-diameter production. Both types undergo a series of rigorous destructive and non-destructive tests, including ultrasonic testing, hydrostatic testing, X-ray inspections, tensile testing, and chemical composition analysis, ensuring they meet global benchmarks like ASTM A672, and ASTM A671 and API 5L line Pipes and Tubes. Their structural precision is complemented by excellent weld strength, making them reliable under extreme mechanical and thermal loads.

Applications & Industry Use

Carbon Steel SAW/LSAW/HSAW Pipes & Tubes are widely recognized for their corrosion resistance, high load-bearing capacity, and durability under extreme conditions. Their engineering makes them indispensable in critical industries such as oil and gas transmission, petrochemical refineries, water treatment and supply, pulp and paper mills, power generation (including nuclear plants), and chemical processing. These pipes also find applications in boilers, heat exchangers, and structural infrastructure due to their smooth finish, stress distribution capabilities, and precise dimensional control. Their ability to withstand high temperatures and pressures, combined with rust-proof finishes and robust weld integrity, makes them ideal for both onshore and offshore projects across the Middle East and South Asia.

Specification :

ASTM A671/ 672 GR.B/ CB/ CC 60/ 65/ 70 CL 12/ 22/ 32 IS 3589 GR.450

Size :

1/2” NB to 36” NB

Wall Thickness :

0.5mm to 85mm

Type :

Seamless

Form :

Round, Square, Rectangular, Oval, Hydraulic Etc

Length :

Single Random, Double Random & Cut Length.

Schedules :

SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Inspection, Test Reports :

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports, India Boiler Regulations (IBR) Test Certificate

Packing :

Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

End :

Plain End, Beveled End, Treaded

Surface :

Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE