Diameter: 8" to 120" (DN200 to DN3000)
Wall Thickness: 6mm to 100mm
Length: 6m to 24m (custom lengths and splicing available)
High-Strength Steel: ASTM A252 Gr. 1, Gr. 2, Gr. 3
Carbon Steel: API 5L Gr. B, X42, X52, X60; ASTM A53 Gr. B
Atmospheric & Corrosion Resistant: ASTM A500 Gr. B/C, ASTM A572
Marine & Coastal Grades: ASTM A690 (High-Strength Low-Alloy Steel for Marine Piling)
Plate Preparation: Cutting and edge preparation of steel plates.
Forming: Roll-forming or press-bending into cylindrical shape using UOE or spiral weld methods.
Welding: Longitudinal or spiral seam welding via Submerged Arc Welding (SAW) for deep penetration and high strength.
Sizing & Straightening: Calibration for roundness, straightness, and dimensional consistency.
End Finishing: Beveling or squaring for ease of driving and splicing.
Testing & Inspection: Non-destructive testing including ultrasonic (UT), radiographic (RT), and visual inspection; hydrostatic testing as required.
Building Foundations: Support for high-rise buildings, bridges, and industrial structures.
Marine Structures: Ports, docks, wharves, offshore platforms, and seawalls.
Transport Infrastructure: Bridge piers, retaining walls, and highway support systems.
Industrial Facilities: Support for heavy machinery, tanks, and power plants.
Earth Retention & Shoring: Temporary or permanent retaining walls and excavation support.
Primary Standard: ASTM A252 (Standard Specification for Welded and Seamless Steel Pipe Piles)
Supplementary Standards: API 5L, ASTM A500, ASTM A53, ASTM A690
Welding Standards: AWS D1.1 (Structural Welding Code)
Corrosion & Coating: ISO 12944, AWWA C210 (Liquid Epoxy Coating)
Quality Management: ISO 9001, API Q1
Regional & Project-Specific: EN 10219, JIS A 5525, project-specific technical specifications
Electric Fusion Welded (EFW) steel pipes are manufactured using advanced electric fusion welding techniques, ensuring high structural integrity and superior weld quality. These pipes are designed for demanding applications where strength, durability, and leak-proof performance are critical.
LSAW (Longitudinal Submerged Arc Welded) pipes are high-strength, large-diameter steel pipes widely used in critical infrastructure projects. They are manufactured through three primary forming methods:
UOE Process: Cold-formed using U-ing, O-ing, and Expansion for superior dimensional accuracy.
RBE Process: Roll-Bending and Expansion for cost-effective production.
JCOE Process: J-shape, C-shape, O-ing, and Expansion for customized wall thickness and diameters.
These pipes are ideal for high-pressure transmission and structural applications due to their excellent weld integrity and mechanical properties.
API Line Pipe is a specialized category of welded steel pipe designed for the rigorous demands of the oil and gas industry. Manufactured to stringent international standards, these pipes ensure reliable performance in the transportation of oil, gas, and other hydrocarbons under high-pressure and harsh environmental conditions.
Welded Structural & Conveyance Pipes are versatile and reliable tubular products engineered for a broad range of structural applications and fluid transportation systems. Manufactured using precision welding technologies, these pipes offer an optimal balance of strength, dimensional consistency, and cost efficiency, making them suitable for both load-bearing frameworks and medium-pressure conveyance services.
Water Well Casing Pipes are high-quality welded steel pipes specifically engineered for the construction and protection of water wells. Designed to withstand subsurface pressures, resist corrosion, and ensure long-term integrity, these pipes provide a reliable and durable barrier for groundwater extraction and well stability. Manufactured to meet stringent standards, they are ideal for potable water, irrigation, geothermal, and monitoring well applications.
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info@rd-steel.com
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