API 5L Line Pipe Specifications

Refer to the table below for a detailed breakdown of API 5L Line Pipe Specifications.

Property Specification / Details
Product Specification Levels PSL 1 and PSL 2
Common Grades Grade B, X42, X46, X52, X56, X60, X65, X70, X80
Manufacturing Methods Seamless (SMLS), ERW, LSAW (DSAW), SSAW (HSAW)
Size Range (OD) 2" to 80" (Custom sizes up to 100" available for SAW)
Wall Thickness Schedule 10 through XXS (up to 52 mm for LSAW)
Standard Lengths Single Random (6m), Double Random (12m), Custom up to 18m
Surface Coating FBE, 3PE/3LPE, Black Vanish, Galvanized, Internal Lining
Ends Plain End, Beveled End (30° ± 5°), Threaded & Coupled

API 5L Pipe Sizes and Dimensions

Refer to the table below for a combined overview of the dimensional ranges, schedules, and typical applications for seamless, ERW, and submerged arc welded pipes.

Pipe Type Outside Diameter (OD) Range Wall Thickness / Schedule Standard Applications
Seamless Pipe 2" to 36" SCH 10 through XXS High-pressure and critical process piping
ERW Pipe 2" to 24" Up to 16 mm Oil, gas, and water transportation lines
DSAW / SAWL 20" to 80" Heavy Wall / Project Specific Longitudinal large-diameter transmission
SAWH 20" to 80" Heavy Wall / Project Specific Helical/Spiral large-diameter transmission

API 5L Line Pipes Price and Availability Availability

API 5L pipe prices (Grades till –X65) average ₹75–₹110/kg in India and $1.10–$1.60/kg in the USA. We stock certified inventory with mill test certificates ready for immediate global dispatch.

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API 5L Line Pipe Grades

The following are the grades that are included in API 5L: X42, X52, X60, X65, X70.

Grade X42 (L290)

X42 offers a minimum yield strength of 290 MPa, providing a reliable and ductile solution for moderate-pressure transport systems.

Grade X52 (L360)

X52, with a yield strength of 360 MPa, is the industry benchmark for effective onshore gas transmission and collection line systems.

Grade X60 (L415)

X60 provides 415 MPa strength, specifically engineered to withstand the mechanical stresses of high-pressure cross-country pipeline transmission systems.

Grade X65 (L450)

Favoring offshore environments, X65 delivers 450 MPa strength with superior fracture toughness required for demanding subsea oil and gas services.

Grade X70 (L485)

Utilizing advanced TMCP processing, X70 reaches 485 MPa, offering an exceptional strength-to-weight ratio for the most demanding high-capacity pipelines.

Grade B

API 5L Grade B is a carbon steel line pipe with a minimum 245 MPa yield strength.

API 5L Line Pipe Types

Three methods fall under API 5L: seamless, ERW, and submerged arc welded.

Seamless (SMLS) Line Pipe

Seamless (SMLS) Line Pipe

Electric Resistance Welded (ERW / HFW) Line Pipe

Electric Resistance Welded (ERW / HFW) Line Pipe

Submerged Arc Welded (SAWL / SAWH / DSAW) Line Pipe

Submerged Arc Welded (SAWL / SAWH / DSAW) Line Pipe

API 5L Line Pipe Industrial Applications

API 5L line pipes effectively serve onshore, offshore, sour service, and water pipeline sectors, ensuring reliable fluid transport for critical infrastructure.

Oil and Gas Transmission Pipelines

These high-strength trunk lines use grades X52 to X70 to transport energy resources safely across vast onshore industrial networks.

Offshore and Subsea Pipelines

Designed for deep-sea environments, PSL2 X65 pipes provide the high structural integrity required to withstand extreme underwater external pressures.

Sour Service Pipelines

H2S environments need PSL2 pipe with controlled hardness.

Water and Slurry Pipelines

Grades B and X42 offer a cost-effective solution for transporting water and abrasive mineral slurries at lower operating pressures.

API 5L vs ASTM A106: Key Differences for Pipe Buyers

Compare the chemical composition, manufacturing processes, and pressure ratings of API 5L and ASTM A106 in the table below.

Parameter API 5L ASTM A106
Application Pipeline transportation High-temperature process piping
Pipe Types Seamless, ERW, SAW Seamless only
Grades B, X42 through X80 A, B, C
Minimum Yield 80,000 psi (X80) 40,000 psi (Gr. C)

Shipping & Packaging

Main export packaging setup Heavy-duty wooden boxes Packing
Export Packaging Standard

We strictly follow seaworthy export handling standards to protect API 5L line pipe from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

  • Heavy-duty wooden boxes with moisture barrier lining
  • HDPE stretch film wrapping on all bundles
  • Plastic end caps on threaded and plain-end pipes
  • Silica gel desiccants to minimize moisture exposure
  • ISPM-15 fumigated wooden packaging for export
shipping preparation Pipe Bundle Yard Staging
Shipping packaging Container End-Cap Protection
Shipping stock Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies carbon steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

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Frequently Asked Questions

What is API 5L Line Pipe?+
API 5L line pipe is carbon steel pipe per API Specification 5L for oil, gas, and water pipelines in seamless, ERW, and SAW forms.
What is API 5L Grade B Pipe Specification?+
Grade B has 35,500 psi (245 MPa) minimum yield and 60,200 psi (415 MPa) tensile. Carbon: 0.28% max (seamless), 0.26% max (welded).
What is the difference between API 5L PSL1 and PSL2? +
PSL1 is the standard level. PSL2 adds CVN testing, NDE, tighter chemistry, and traceability for offshore and sour service.
What is the difference between API 5L and ASTM A106 Pipe?+
API 5L covers pipeline transportation up to higher grades. ASTM A106 is for high-temperature seamless pipe in grades A, B, and C only.
What is the pressure rating of API 5L Pipe?+
No fixed ratings exist. Allowable pressure depends on grade, OD, and wall thickness, calculated per ASME B31.4 or B31.8.
What sizes are available for API 5L Line Pipes?+
OD ranges from 2 to 36 inches seamless. From 2 to 24 inches in ERW. From 20 to 80 inches for DSAW, SAWL, and SAWH.
What are the primary testing requirements for API 5L line pipes? +
Engineers hydrostatically test all pipes for pressure integrity and perform NDE on weld faults. To ensure longevity in severe service environments, PSL2 grades are subjected to Charpy V-Notch impact testing to certify crucial fracture toughness and strength.
Where can I buy API 5L Line Pipes? +
Sachiya Steel International supplies API 5L line pipes from Mumbai with mill test certificates and seaworthy packaging. Contact us for pricing.
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