Diameter: 1/2" to 24" (DN15 to DN600)
Wall Thickness: 0.5mm to 25mm
Length: 6m to 12m (custom lengths available)
Carbon Steel: ASTM A53 Gr. A/B, API 5L Gr.
B/X42/X52/X60
Low-Temperature Steel: ASTM A333 Gr. 1/Gr. 6
High-Strength Steel: ASTM A500 Gr. B/C, ASTM A252
(for piling)
Coil Preparation: Uncoiling and leveling of steel
strips.
Forming: Roll-forming into a cylindrical shape.
Welding: High-frequency induction welding (HFW)
or contact welding.
Sizing & Straightening: Precise calibration
for roundness and straightness.
Testing & Inspection: Hydrostatic, ultrasonic
(UT), eddy current (ET), or X-ray testing.
High Strength: Uniform weld seam with mechanical
properties close to the base metal.
Excellent Dimensional Accuracy: Tight tolerances
for OD, WT, and straightness.
Good Weldability: Suitable for further
fabrication (bending, flanging, etc.).
Cost-Effective: More economical than seamless
pipes for medium-pressure applications.
Surface Finish: Smooth, burr-free, and suitable
for coating/galvanizing.
Oil & Gas: Water injection lines, gathering
pipelines, casing pipes.
Construction: Structural columns, scaffolding,
fencing, and piling.
Water & Utilities: Water supply, drainage,
fire sprinkler systems.
Mechanical & Automotive: Roll cages, conveyor
systems, exhaust components.
Low-Pressure Systems: HVAC, compressed air, and
hydraulic lines.
API 5L (Line Pipe)
ASTM A53 (Structural & Fluid Conveyance)
ASTM A500 (Mechanical & Structural Tubing)
EN 10219 / EN 10255 (European Standards)
ISO 9001 (Quality Management)
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.
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.
86-15130730198
86-13667348580
info@rd-steel.com
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