API 5L Line Pipe | L245 L290 L360 L415 X42 X46 X52 X56 X60 X65 X70 X80 PSL1 PSL2 Welded Steel Tube

Full API 5L grade range from L245 to X80, PSL1 and PSL2 available
Multiple processes: ERW for small-medium diameter, SSAW/LSAW for large diameter
Designed for long-distance oil, gas, water and slurry transmission
Strict compliance with API 5L standard, suitable for international pipeline tenders
Full-dimension inspection, hydrostatic test, weld NDT and MTC traceability

Product Overview

API 5L line pipe is a standard welded steel pipe system for oil, natural gas, produced water, slurry and process fluid transmission. It is produced in accordance with API Spec 5L, covering two product specification levels: PSL1 for general pipeline service and PSL2 for more demanding pipeline projects with stricter toughness and chemical composition requirements.

The product range includes grades L245, L290, L360, L415, X42, X46, X52, X56, X60, X65, X70 and X80. Lower grades such as L245, L290 and X42 are suitable for moderate pressure municipal and regional pipelines. Medium-high grades such as X52, X60 and X65 are widely used in long-distance oil and gas transmission. Higher grades X70 and X80 are used for high-pressure large-diameter trunk pipelines.

API 5L line pipe can be manufactured by ERW, SSAW or LSAW process according to diameter, wall thickness and project requirements. ERW pipe is suitable for smaller diameter lines; SSAW pipe is suitable for large diameter municipal water, sewage and gas pipelines; LSAW pipe is suitable for critical high-pressure trunk lines.

Carbon Steel Welded Steel Pipe

Chemical & Mechanical Property Snapshot

Grade	Yield Strength Min (MPa)	Tensile Strength Min (MPa)	Elongation Min (%)	Grade Level
L245 / X42	245	415	18	Low-moderate pressure
L290 / X46	290	415	17	Moderate pressure
L360 / X52	360	460	17	Medium-high pressure
L415 / X56	415	490	16	High pressure
X60	415	520	16	High pressure
X65	450	535	16	High pressure
X70	485	565	16	Trunk line
X80	555	625	15	High-pressure trunk line

Detailed Technical Specifications

Item	Details
Product Name	API 5L Line Pipe
Applicable Standard	API Spec 5L
Product Specification Level	PSL1 / PSL2
Available Grades	L245, L290, L360, L415, X42, X46, X52, X56, X60, X65, X70, X80
Manufacturing Processes	ERW, SSAW, LSAW
Outer Diameter	12.7–3620 mm
Wall Thickness	0.8–50 mm
Standard Length	6 m / 12 m
Custom Length	Available
Pipe End	Plain end, bevel end
Coating Options	Black bare, 2PE, 3PE, FBE, internal coating
Inspection	Hydrostatic test, weld UT/RT, dimensional check, mechanical test
Documentation	API 5L related documents, Mill Test Certificate
MOQ	5–10 Ton depending on process and size
Payment Terms	T/T, L/C at Sight
Delivery Time	15–30 working days after deposit
Package	Steel strapping + waterproof wrapping + export pallet or bulk loading

Shape Table

Shape Type	Description	Applicable Pipe Type
Round / Circular Tube	Standard circular cross-section, most widely used	ERW, SSAW, LSAW Carbon Welded Pipe
Straight End	Plain ends, no threading, cut flat	ERW, SSAW, LSAW
Beveled End	30° / 37.5° welding bevel for butt welding	SSAW, LSAW (large-diameter pipeline)
Threaded End	Thread + coupling for connection	Small-size ERW pipe
Grooved End	Groove for mechanical coupling connection	Medium-size ERW pipe for fire & water systems
Cut to Fixed Length	6 m, 12 m, or custom fixed cut length	ERW / SSAW / LSAW

Dimension Table

Pipe Type	Outer Diameter Range	Wall Thickness Range	Standard Length	Tolerance
ERW Welded Pipe	12.7 mm–610 mm	0.8 mm–20 mm	6 m / 12 m	OD ±0.5%, WT ±10%
SSAW Spiral Welded Pipe	219 mm–3620 mm	5 mm–25.4 mm	6 m / 12 m or custom	OD ±1.0%, WT -5% to +12.5%
LSAW Longitudinal Welded Pipe	406 mm–1626 mm	6 mm–50 mm	6 m / 12 m or custom	OD ±0.75%, WT -5% to +10%

Product Comparison Table

Grade Group	Pressure Level	Process Option	Typical Application
L245 / X42	Low-moderate	ERW, SSAW	Municipal pipelines, distribution lines
L290 / X52	Moderate-high	ERW, SSAW, LSAW	Regional oil and gas pipelines
X60 / X65	High	SSAW, LSAW	Long-distance transmission pipelines
X70 / X80	High-pressure	LSAW, SSAW	Large-diameter trunk pipelines

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Scaffolding materials

Steel Structure Processing

Pressure Vessels Stainless Steel

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What does API 5L PSL2 mean?

PSL2 is a higher requirement level than PSL1, with stricter chemistry, toughness and testing requirements for critical pipelines.

What is the difference between L-grades and X-grades?

They are different naming systems for the same line pipe grades; for example, L245 corresponds to X42.

What is API 5L line pipe used for?

It is used for oil, natural gas, water, slurry and process fluid transmission pipelines.

Can you provide 3PE coating for API 5L pipe?

Yes, 2PE, 3PE, FBE and internal coating are available.

What is the delivery time?

15–30 working days after deposit, depending on size, process and quantity.

Related Projects

Steel And Metal Materials Supplied To Projects Worldwide.

Learn More

Vietnam Binh Duong Foreign-Invested Industrial Park Project

A large-scale foreign-invested smart manufacturing industrial park was developed in Binh Duong Province, Vietnam. The project included three large-span steel structure workshops w…

Texas Commercial Warehouse & Logistics Center Project, USA

A large-scale e-commerce logistics center was constructed near Houston, Texas, USA, featuring a single-story large-span steel structure designed for modern warehousing and distribu…

Middle East Petrochemical EPC Project

A petrochemical EPC project in the Middle East involved the construction of new raw material storage tanks and shell-and-tube heat exchanger systems for an oil refining supporting …

API 5L Line Pipe | L245 L290 L360 L415 X42 X46 X52 X56 X60 X65 X70 X80 PSL1 PSL2 Welded Steel Tube