LSAW/SAWL Pipe

Commodity name： LSAW/SAWL Pipe

LSAW Pipe (Longitudinal Submerged Arc Welded Pipe) is a high-performance welded steel pipe manufactured by cold-forming solid steel plates into tubular blanks and implementing double-sided submerged arc longitudinal welding. Different from SSAW spiral welded pipes and ERW electric resistance welded pipes, LSAW pipes feature a straight single weld seam, uniform welding quality, ultra-low residual stress, and outstanding structural stability. As a core product for high-pressure, large-diameter, and heavy-duty engineering projects worldwide, it is widely applied in oil & gas long-distance transmission, municipal water conservancy engineering, marine engineering, petrochemical industry, and large-scale structural construction. Our factory strictly implements international mainstream standards, provides customized size and material solutions, and delivers stable and reliable pipe products for global clients.

subcategory：

LSAW Pipe

Tel：

008613821394999

E-mail：

sales@briskmetal.com

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Core Specifications

Longitudinally Submerged Arc Welding Pipe is subdivided into UOE, RBE, JCOE steel pipe according to its different forming methods. Longitudinal high-frequency welded steel pipe has the characteristics of relatively simple process and fast continuous production, and has wide use in civil construction, petrochemical, light industry and other sectors. Mostly used to transport low pressure fluids or made into various engineering components and light industrial products.

Products	UOE LSAW PIPES	JCOE LSAW PIPES
Outside Diameter	Φ508mm- 1118mm (20"- 44")	Φ406mm- 1626mm (16" - 64" )
Wall Thickness	6.0-25.4mm 1/4"-1"	6.0- 75mm (1/4" - 3" )
Length	9-12.3m (30'- 40')	3-12.5m ( 10"- 41")
Quality Standards	API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA	API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA
Grades	API 5L A-X90,GB/T9711 L190-L625	API 5L A-X100, GB/T9711 L190-L690

Tolerance of Outside Diameter and Wall Thickness

Types	Standard
Types	SY/T5040-2000	SY/T5037-2000	SY/T9711.1-1977	ASTM A252	AWWA C200-97	API 5L PSL1
OD deviation	±0.5%D	±0.5%D	-0.79mm～+2.38mm	<±0.1%T	<±0.1%T	±1.6mm
Wall thickness	±10.0%T	D<508mm, ±12.5%T	-8%T～+19.5%T	<-12.5%T	-8%T～+19.5%T	5.0mm
Wall thickness	±10.0%T	D>508mm, ±10.0%T	-8%T～+19.5%T	<-12.5%T	-8%T～+19.5%T	T≥15.0mm, ±1.5mm

Adopted International Manufacturing & Testing Standards

Our LSAW pipes are fully compliant with global authoritative industry standards, covering fluid transmission, structural engineering, corrosion resistance and low-temperature working scenarios, to meet diversified certification requirements of different regional markets:
- API 5L / ISO 3183: Core standard for oil and gas pipeline transmission, covering PSL1/PSL2 grades (X42, X52, X60, X70, X80, X100, X120), applicable for long-distance crude oil, natural gas and petrochemical medium transmission
- ASTM A139 / ASTM A252: Standard for structural and fluid transmission steel pipes, suitable for industrial pipeline systems and building structural engineering
- EN 10224 / EN 10219: European standard for low-pressure fluid transmission and structural steel pipes, meeting EU market access requirements
- AWWA C200: Special standard for municipal water supply and drainage pipelines, applied to urban water conservancy and water transmission projects
- NACE MR0175: Anti-sulfur corrosion standard, adapting to high-sulfur and harsh oil-gas working environments
- DNV-OS-F101: Offshore engineering pipeline standard, controlling pipe residual stress strictly within 15% of yield strength to adapt to marine complex working conditions

Product Advantages (Core Market Competitiveness)

Compared with SSAW spiral welded pipes and ERW resistance welded pipes, LSAW pipes have irreplaceable core advantages in high-end and high-demand engineering markets, which are the key reasons for their wide recognition in the global market:
- Superior Weld Quality & Structural Integrity: Single straight longitudinal weld with full penetration double-sided welding. The weld seam is parallel to the pipe axis with uniform stress bearing, avoiding the oblique stress defect of SSAW spiral welds. The overall structural stability is stronger, with extremely low failure risk under extreme pressure and load.
- Ultra-Thick Wall & High-Pressure Resistance: Made of integral thick steel plates, the maximum wall thickness can reach 60mm, breaking the thickness limit (≤25mm) of SSAW coil raw materials. It is the preferred pipe for ultra-high pressure long-distance transmission and heavy-load structural engineering.
- Low Residual Stress & Strong Fatigue Resistance: Uniform welding heat input and professional post-weld shaping treatment make residual stress far lower than spiral welded pipes. It can resist long-term alternating pressure impact, with stable performance and longer service life in cyclic working conditions.
- Excellent Low-Temperature & Harsh Environment Adaptability: High weld toughness and low-temperature impact resistance, suitable for cold regions, offshore platforms and high-sulfur corrosive environments, meeting the strict environmental adaptation requirements of international high-end projects.
- High Dimensional Accuracy & Easy Construction: Precise pipe roundness, straightness and wall thickness size, good pipe fitting consistency, reducing on-site assembly difficulty and construction cost, improving engineering installation efficiency.
- Wide Standard Coverage & High Versatility: Fully compliant with API, ISO, EN, AWWA and other global standards, covering oil & gas, municipal, marine, chemical and structural fields, meeting multi-scenario global engineering procurement needs.

Global Market Application & Target Scenarios

With the global acceleration of energy infrastructure, municipal water conservancy and marine engineering construction, high-standard LSAW pipes are increasingly demanded in the international market. Our products are widely exported to Southeast Asia, the Middle East, Europe, Africa and South America, serving core scenarios as follows:
- Long-distance oil, natural gas and coalbed methane transmission trunk pipelines
- Offshore platform pipelines, subsea transmission pipelines and marine structural engineering
- Urban large-scale water supply, drainage and pressure water transmission municipal projects
- Petrochemical, chemical and high-corrosive medium industrial transmission pipelines
- Large-span steel structure engineering, bridge support, piling and heavy-load building structures

Brisk Steel Factory Product Line

Core Advantage

Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.

Craftsmanship with Precision

We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.

Innovation-Driven Technological Leadership

We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.

Globalization and Open Collaboration

Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.

Professional Team and Talent Empowerment

We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.

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