Diameter: 2" to 48" (DN50 to DN1200)
Wall Thickness: 3mm to 40mm
Length: 6m to 18m (custom lengths available upon request)
API 5L Gr. B, X42, X46, X52, X56, X60, X65, X70, X80
Carbon Steel: ASTM A53 Gr. A/B, ASTM A106
Low-Temperature Steel: ASTM A333 Gr. 1/Gr. 6
Coil Preparation: Uncoiling, edge trimming, and surface cleaning of high-grade steel coils.
Forming: Precision roll-forming into a cylindrical shape using advanced UOE or JCOE methods.
Welding: Longitudinal seam welding via Submerged Arc Welding (SAW) or High-Frequency Induction Welding (HFIW).
Sizing & Straightening: Mechanical expansion and straightening to achieve precise dimensional tolerances.
Heat Treatment: Normalizing or quenching and tempering as required for enhanced mechanical properties.
Testing & Inspection: Comprehensive non-destructive testing including hydrostatic, ultrasonic (UT), radiographic (RT), and magnetic particle inspection (MPI).
Onshore & Offshore Pipelines: Transmission and distribution of crude oil, natural gas, and refined products.
Gathering Lines: Transport from wellheads to processing facilities.
Injection Lines: Water, gas, or chemical injection for enhanced oil recovery.
Casing & Tubing: Well construction and completion applications.
Process Piping: Refinery, petrochemical, and terminal piping systems.
Primary Standard: API Specification 5L (Product Specification Level PSL1 & PSL2)
Supplementary Pipe Standards: API 5CT, ASTM A106, ASTM A53, ASTM A333
Material Fitness Standards: NACE MR0175 / ISO 15156 (Sour Service)
Quality Management: API Monogram License, API Q1, ISO 9001
Environmental & Welding: ISO 14001, ISO 45001, CE Marking (for relevant grades/standards)
Regional Standards: DNV GL, CSA Z245.1, GOST, EN 10208
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.
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.
Steel Pipe Piles are high-strength, durable welded steel pipes specifically engineered for deep foundation and structural support applications. Manufactured to withstand heavy axial loads, lateral forces, and challenging soil conditions, they provide a reliable and efficient solution for building stable, long-lasting foundations in various construction and civil engineering projects.
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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