Seamless Line Pipes
Seamless Line Pipes are high-performance steel pipes manufactured without welding seams, ensuring superior strength, pressure resistance, and reliability for critical fluid transportation applications. These pipes are widely used in oil & gas, petrochemical, and water transmission industries due to their excellent structural integrity and corrosion resistance.
Specifications
Type: Seamless (SMLS)
Size Range:
Outer Diameter (OD): 1/2" to 24" (DN15 to DN600)
Wall Thickness: SCH 10 to SCH XXS (customizable)
Length: 5.8m,6m to 12.5m (or as per customer requirements)
Pressure Rating: API 5L PSL1 & PSL2, up to X80 grade
Material & Grades
Common Materials:
Carbon Steel: ASTM A106 Gr. B, API 5L Gr. B/X42/X52/X60/X65/X70/X80
Alloy Steel: ASTM A335 P11/P22/P91 (for high-temperature service)
Stainless Steel: ASTM A312 TP304/316 (corrosive environments)
Standards Compliance:API 5L, ASTM A106, ASTM A53, ASME B36.10, ISO 3183
Features & Performance
High Strength & Durability – No welded seams eliminate weak points, ideal for high-pressure applications.
Superior Corrosion Resistance – Suitable for harsh environments (offshore, sour gas, acidic fluids).
Excellent Dimensional Accuracy – Smooth internal surface reduces friction and improves flow efficiency.
Pressure & Temperature Resistance – Handles extreme conditions (up to 1000°C for alloy grades).
Leak-Proof & Reliable – No risk of weld defects, ensuring long-term safety.
Applications
Oil & Gas Industry:Crude oil & natural gas transmission (onshore/offshore pipelines).
Gathering lines, well casings, and refinery piping.
Petrochemical Plants:High-pressure steam, chemical, and hydrocarbon transport.
Water & Utilities:High-pressure water mains, sewage systems.
Power Generation:Boiler tubes, heat exchangers (ASTM A335 alloy pipes).
Testing & Certifications
Non-Destructive Testing (NDT): Ultrasonic (UT), Hydrostatic, Eddy Current.
Mechanical Tests: Tensile strength, hardness, impact (Charpy V-notch).
Certifications: API 5L, ISO 9001, PED 2014/68/EU, NACE MR0175 (for sour service).
Packaging & Delivery
Packaging: Plastic caps, bundled with steel strips, woven bags or wooden crates for protection.
Delivery: Standard 20ft/40ft containers or bulk shipment (OD ≥ 16" shipped individually).