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LSAW Steel Pipe

Name: LSAW Steel Pipe
Brand: Ever Nickel
Price: 99.99 USD
Availability: InStock
Rating: 4.8 (50 reviews)

Pipe type: LSAW Steel Pipe,Longitudinal Welded Pipe, Longitudinal SubmergedArc Welded Pipe

Processing: UOE or JCOE

Size:OD: 406mm ~ 1422 mm;

WT: 6.4mm ~ 44.5mm;

LENGTH: 5mtr ~ 12mtr

Standard & Grade: ASTM A53 Grade A/B/C,API 5L,PSL1&PSL2,GR.B/X42-X80

Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

Usage: Used for Fluids Transmission, Structural Support in Industrial Construction

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Description
Specification
Standard
Process
Packing

LSAW stands for Longitudinal Submerged Arc Welding.
LSAW steel pipes are produced by using a single medium-to-thick steel plate as the raw material. The plate is molded (JCOE or UOE process) into a pipe shape and then welded via internal and external submerged arc welding. This process results in a high-quality pipe with a single longitudinal weld seam, offering exceptional structural integrity and thickness capabilities.

1. Dimensional Specification & Production Capacity

Outside Diameter (O.D.): 16"–60" (406.4mm–1524mm)

Wall Thickness (W.T.): 6.0mm–60mm (Up to SCH 160)

Length: * Single Pipe: Up to 12.5 meters.

Jointing: Custom lengths available via professional circumferential welding for structural applications.

Production Process: High-precision JCOE / UOE / Bending Forming.

2. Global Standards & Material Compliance

Our production facility strictly adheres to international quality protocols, ensuring full compliance with the following standards:

API 5L (PSL1 & PSL2): Grades B, X42, X46, X52, X56, X60, X65, X70, X80.

ASTM / ASME: ASTM A671, A672, A252 (Grades 1, 2, 3).

European Standards: EN 10219 (S235JRH, S275J0H, S355J2H), EN 10217.

German Standards: DIN 2458 / DIN 17172.

3. Professional End Preparation

To facilitate seamless field welding and ensure joint structural integrity:

Bevelled Ends: Precisely machined to 30°(+5°/-0°) with a 1.6mm (±0.8mm) root face per ANSI B16.25.

Plain Ends: Square cut (90°), deburred to eliminate sharp edges.

Special Preparation: Custom bevel configurations or internal counter-boring for heavy-wall pipes.

4. Advanced Surface & Corrosion Protection

We provide multi-layer coating systems to mitigate corrosion in diverse terrestrial and subsea conditions:

Standard Protection: Black bitumen paint, clear varnish, or transparent anti-rust oil.

Advanced Anti-Corrosion: 3PE (3-Layer Polyethylene), 3PP, FBE (Fusion Bonded Epoxy) compliant with DIN 30670 / CAN CSA Z245.21.

Internal Lining: Liquid epoxy coating for friction reduction and enhanced flow efficiency.

5. Quality Assurance & Technical Control (QA/QC)

100% NDT Testing: Full-length Ultrasonic Testing (UT) and X-ray Inspection of weld seams.

Mechanical Expanding: Cold mechanical expanding process ensures uniform diameter and eliminates internal residual stress, enhancing dimensional precision.

Certification: Mill Test Certificates (MTC) provided in accordance with EN 10204 3.1 (3.2 available upon request).

Third-Party Inspection: Full cooperation with SGS, BV, TUV, DNV, or client-appointed inspectors.

6. Packaging & Export Logistics Management

Our logistics team ensures that your cargo reaches the destination in "Mill-New" condition:

Pipe Protection: Heavy-duty plastic end caps or steel ring protectors to prevent bevel deformation and internal contamination.

Packaging: Bulk shipment or containerized loading. Large diameter pipes are often shipped with "Nested" loading where feasible to optimize freight costs.

Marking: Professional stenciling of Heat Number, Pipe Number, Dimensions, Steel Grade, and Manufacturer Code for full traceability.

Critical Shipping Precautions:

Strict use of non-metallic slings to prevent surface scarring.

Robust sea-worthy bracing and timber dunnage to mitigate shifting during maritime transit.

Rigid lashing procedures for both "On Deck" and "Below Deck" storage.

7.Strategic Application Areas

LSAW steel pipes are engineered for critical infrastructure where safety and extreme durability are non-negotiable:

a. Long-Distance Oil & Gas Pipelines

LSAW pipes are the global standard for high-pressure, long-distance trunk lines. They are used to transport crude oil, natural gas, and water across vast terrains, including onshore and offshore environments.

b. Offshore Engineering & Subsea Pipelines

Specifically designed to withstand the crushing external pressures of deep-sea environments and the corrosive nature of saltwater. They are vital for subsea pipelines, risers, and jacket structures for offshore platforms.

c. Heavy Structural Engineering

In the construction industry, LSAW pipes serve as critical load-bearing components.

Bridge Construction:Used for bridge piers and structural arches.

Large-Scale Facilities:Used in the skeletal frameworks of stadiums, airports, and high-rise buildings.

Piling Projects:Ideal for foundation piling in ports, docks, and coastal defenses.

d. Renewable Energy Infrastructure

LSAW pipes are increasingly used as the foundational steel piles for offshore wind turbines, where they must support massive weight while enduring constant wave action and offshore wind loads.

e. Chemical & Industrial Plant Piping

Used in heavy industrial complexes for high-temperature and high-pressure steam or chemical conveyance systems where smaller diameter or thinner-walled pipes would fail.

LSAW SPEC sheet

Outer Diameter (OD)	Wall Thickness (WT) Range	Length Range	Common Applications
16" (406.4 mm)	6.35 mm – 40.00 mm	5.8m – 12.5m	Oil & Gas / Standard Pipelines
20" (508.0 mm)	7.92 mm – 50.00 mm	5.8m – 12.5m	High Pressure Transmission
24" (609.6 mm)	7.92 mm – 60.00 mm	5.8m – 12.5m	Natural Gas Mainlines
30" (762.0 mm)	9.53 mm – 70.00 mm	5.8m – 12.5m	Long-distance Gas Lines
36" (914.4 mm)	12.70 mm – 80.00 mm	5.8m – 12.5m	Major Infrastructure / Water
40" (1016.0 mm)	12.70 mm – 80.00 mm	5.8m – 12.5m	Offshore Piling / Sea Water
42" (1066.8 mm)	12.70 mm – 85.00 mm	5.8m – 12.5m	Structural Steel / Casing
48" (1219.2 mm)	15.88 mm – 90.00 mm	5.8m – 12.8m	Large Diameter Mainlines
52" (1320.8 mm)	15.88 mm – 90.00 mm	5.8m – 12.8m	Heavy Load Structures
56" (1422.4 mm)	15.88 mm – 100.00 mm	5.8m – 12.8m	Civil Engineering / Tunnels
60" (1524.0 mm)	19.05 mm – 100.00 mm	5.8m – 12.8m	Marine Terminals / Jetty Piles
64" (1625.6 mm)	19.05 mm – 100.00 mm	5.8m – 12.0m	Deep Water Intake Pipes
68" (1727.2 mm)	22.00 mm – 100.00 mm	5.8m – 12.0m	Heavy Bridge Support Piles
72" (1828.8 mm)	22.00 mm – 100.00 mm	5.8m – 12.0m	Mega-Infrastructure / Dredging

Pipe Tolerance Sheet FOR OD WT LEGNTH

API 5L (PSL 1)	A, B, X42, X46, X52, X56, X60, X65, X70	Outside Diameter (OD)	Body	±0.75% of OD
			Pipe End	±1.6 mm (0.063")
		Wall Thickness (WT)	5.0 mm – 25.0 mm	+15.0% / -12.5%
		Length	Random	± 500 mm
API 5L (PSL 2)	B, X42, X46, X52, X56, X60, X65, X70, X80	Outside Diameter (OD)	Body	±0.50% of OD (Max ±4.0 mm)
			Pipe End	±1.6 mm (0.063")
		Wall Thickness (WT)	> 10.0 mm	+3.0 mm / -1.5 mm
		Out-of-Roundness	Pipe End	≤ 1.0% of OD (Max 15 mm)
GB/T 9711	L245, L290, L360, L415, L450, L485, L555	OD / WT	All	Aligns with API 5L PSL 2
EN 10219	S235, S275, S355 (All Suffixes)	Outside Diameter (OD)	All	±1.0% (Min ±0.5 mm)
		Wall Thickness (WT)	WT > 5 mm	±10%
		Straightness	Total Length	≤ 0.2% of total length
AS/NZS 1163	C250, C250L0, C350, C350L0	Outside Diameter (OD)	All	±1.0% (Min ±0.5 mm)
		Wall Thickness (WT)	All	±10% (Min ±0.5 mm)

LSAW Steel Pipe Standards Comparison sheet

		Chemical Components (%)					Mechanical Properties			Impact Test
Standard	Grade	C (%)	Si (%)	Mn (%)	P (%)	S (%)	Yield (MPa)	Tensile (MPa)	Elong. (%)	Impact Temp	Impact Energy (J)
API 5L PSL1	B	0.28	-	1.2	0.03	0.03	≥ 245	≥ 415	23	N/A	N/A
	X42	0.28	-	1.3	0.03	0.03	≥ 290	≥ 415	23	N/A	N/A
	X46	0.28	-	1.4	0.03	0.03	≥ 320	≥ 435	22	N/A	N/A
	X52	0.28	-	1.4	0.03	0.03	≥ 360	≥ 460	21	N/A	N/A
	X56	0.28	-	1.4	0.03	0.03	≥ 390	≥ 490	19	N/A	N/A
	X60	0.28	-	1.4	0.03	0.03	≥ 415	≥ 520	19	N/A	N/A
	X65	0.28	-	1.45	0.03	0.03	≥ 450	≥ 535	18	N/A	N/A
	X70	0.28	-	1.45	0.03	0.03	≥ 485	≥ 570	18	N/A	N/A
API 5L PSL2	B	0.22	0.45	1.2	0.025	0.015	245-450	≥ 415	23	0°C	≥ 27
	X42	0.22	0.45	1.3	0.025	0.015	290-496	≥ 415	23	0°C	≥ 27
	X52	0.22	0.45	1.4	0.025	0.015	360-530	≥ 460	21	0°C	≥ 27
	X60	0.12	0.45	1.6	0.02	0.01	415-565	≥ 520	19	0°C	≥ 27
	X65	0.12	0.45	1.6	0.02	0.01	450-600	≥ 535	18	0°C	≥ 27
	X70	0.12	0.45	1.7	0.02	0.01	485-635	≥ 570	18	0°C	≥ 27
GB/T 9711	L245N	0.24	0.4	1.2	0.025	0.015	245-450	≥ 415	23	0°C	≥ 27
(PSL2 Equiv.)	L360N	0.24	0.45	1.4	0.025	0.015	360-530	≥ 460	21	0°C	≥ 27
EN 10219	S235JR	0.17	-	1.4	0.035	0.035	≥ 235	360-510	24	20°C	≥ 27
	S235J0	0.17	-	1.4	0.03	0.03	≥ 235	360-510	24	0°C	≥ 27
	S235J2	0.17	-	1.4	0.025	0.025	≥ 235	360-510	24	-20°C	≥ 27
	S275JR	0.2	-	1.5	0.035	0.035	≥ 275	410-560	20	20°C	≥ 27
	S275J0	0.2	-	1.5	0.03	0.03	≥ 275	410-560	20	0°C	≥ 27
	S275J2H	0.2	-	1.5	0.025	0.025	≥ 275	410-560	20	-20°C	≥ 27
	S355JR	0.22	0.55	1.6	0.035	0.035	≥ 355	470-630	20	20°C	≥ 27
	S355J0	0.22	0.55	1.6	0.03	0.03	≥ 355	470-630	20	0°C	≥ 27
	S355J2H	0.22	0.55	1.6	0.025	0.025	≥ 355	470-630	20	-20°C	≥ 27
AS/NZS 1163	C250	0.16	0.1	1.2	0.03	0.03	≥ 250	≥ 320	22	N/A	N/A
	C250L0	0.16	0.1	1.2	0.03	0.03	≥ 250	≥ 320	22	0°C	≥ 27
	C350	0.2	0.45	1.6	0.03	0.03	≥ 350	≥ 430	20	N/A	N/A
	C350L0	0.2	0.45	1.6	0.03	0.03	≥ 350	≥ 430	20	0°C	≥ 27