API 5L seamless pipes are high-performance steel pipes manufactured according to the American Petroleum Institute (API) 5L specification. These pipes are primarily used in the oil and gas industry for pipeline transportation of oil, gas, water, and slurry. Designed for high-pressure, high-temperature, and corrosive environments, they offer exceptional mechanical strength, weldability, and toughness.

Key Features

Seamless construction for higher integrity and pressure resistance
Excellent mechanical properties for critical pipeline installations
Available in PSL1 & PSL2 levels for various technical requirements
Superior corrosion resistance (can be internally coated)
Compatible with H2S (sour service) environments (NACE compliance optional)
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Technical Specifications

Standard: API 5L (ISO 3183 equivalent)
Product Type: Seamless Line Pipe
Grades Available: PSL1: B, X42, X46, X52, X56, X60, X65, X70, etc.
PSL2: Higher toughness & chemical properties; stricter testing
Manufacturing Process: Hot-finished or cold-drawn seamless
Size Range: OD: 1/2” to 36” (21.3 mm to 914 mm)
Wall Thickness: SCH 10 to SCH XXS or custom
Length: Single/Double Random or Fixed (up to 12m)

Applications

Oil & gas transportation (onshore & offshore)
Refineries and petrochemical plants
Natural gas and water pipelines
Structural and mechanical pipe systems
Slurry and mineral transport lines

Delivery Options & Testing

Surface Finish: Bare, black-painted, oiled, or 3LPE coated
Ends: Plain, beveled, or threaded
Hydrostatic & NDT (UT, RT)
Mechanical & chemical analysis
Charpy impact tests (for PSL2)