Flanges
LSAW Pipes Manufacturer, Supplier & Exporter in India
MRB Forge is a leading LSAW Pipes Manufacturer in India, offering premium-quality Longitudinal Submerged Arc Welded (LSAW) pipes for demanding industrial applications worldwide. We manufacture and supply high-strength LSAW pipes engineered to deliver exceptional performance in high-pressure, high-temperature, and heavy-duty environments.
Our LSAW pipes are manufactured using high-quality steel plates, advanced forming technology, and automated submerged arc welding processes to ensure superior weld integrity, dimensional accuracy, and long-term reliability, backed by our Quality Assurance system.Widely used in oil & gas, petrochemical, power generation, offshore, marine, water transmission, and infrastructure projects, our LSAW pipes comply with international quality standards and customer-specific requirements.
LSAW Pipes Specifications
MRB Forge manufactures LSAW pipes in accordance with international standards and project specifications.
| Parameter | Details |
|---|---|
| Size Range | 16” NB to 60” NB |
| Wall Thickness | SCH 20 to SCH XXS or as per project requirements |
| Material Grades | Carbon Steel, High Strength Low Alloy Steel, API Line Pipe Grades |
| Manufacturing Process | API 5L, ASTM A671, ASTM A672, ASTM A252, ASME, ANSI, ISO |
| Ends | Plain End, Beveled End, Grooved End |
| Surface Finish | Bare, Black Painted, Anti-Corrosion Coated, FBE, 3LPE, 3LPP |
| Inspection | Third-Party Inspection Available |
| Testing | Hydrostatic, Ultrasonic, Radiographic, PMI, Dimensional Inspection |
Types of LSAW Pipes
MRB Forge manufactures a comprehensive range of LSAW pipes for various industrial applications.
![]()
Grades
LSAW Pipe Material Grades
MRB Forge manufactures LSAW pipes using premium-quality materials suitable for demanding industrial environments.
Carbon Steel LSAW Pipes
Carbon steel provides excellent mechanical strength and weldability for pipeline and structural applications. Common grades include ASTM A53, ASTM A106, and API 5L.
High Strength Low Alloy (HSLA) LSAW Pipes
HSLA steel offers improved strength, toughness, and corrosion resistance while maintaining excellent weldability.
API 5L Grade Pipes
Available in API 5L Grade B, X42, X46, X52, X56, X60, X65, X70, and higher grades for oil and gas transmission pipelines.
Dimensions, Sizes & Pressure Ratings
Our LSAW pipes are available in various sizes and pressure ratings to meet diverse industrial requirements.
- Size Range: 16” NB to 60” NB
- Wall Thickness: SCH 20 to SCH XXS
- Length: Up to 12 Meters or Custom Lengths
- Pressure Rating: As per project design and applicable standards
- End Types: Plain End, Beveled End, Grooved End
- Coating Options: Bare, Black Painted, FBE, 3LPE, 3LPP
Each pipe is manufactured to ensure superior dimensional accuracy, weld quality, and long-term operational performance.
LSAW Pipe Testing & Quality Assurance
Quality assurance is integrated into every stage of manufacturing.
Every LSAW pipe undergoes comprehensive testing, including:
- Hydrostatic Testing
- Ultrasonic Testing (UT)
- Radiographic Testing (RT)
- Positive Material Identification (PMI)
- Magnetic Particle Inspection (MPI)
- Visual Inspection
- Dimensional Inspection
- Third-Party Inspection
These testing procedures ensure high weld integrity, structural reliability, and long service life.
![]()
Manufactor
LSAW Pipe Manufacturing Standards
MRB Forge manufactures LSAW pipes in compliance with internationally recognized standards.
Specifies requirements for line pipes used in oil, gas, and petroleum transmission systems.
Covers electric-fusion-welded steel pipes for atmospheric and lower-temperature services.
Defines electric-fusion-welded steel pipes intended for high-pressure service at moderate temperatures.
Applicable for welded steel pipe piles used in foundation and structural applications.
Ensure manufacturing consistency, dimensional accuracy, and international quality compliance.
LSAW Pipe Manufacturing Process
Our LSAW pipe manufacturing process is designed to ensure consistent wall thickness, weld integrity and compliance with international standards on every order.
- Raw Material Procurement & Plate Mill Certificate Verification
- Chemical Composition & Mechanical Property Testing
- Plate Edge Milling & Beveling
- Cold Forming & Rolling to Required Diameter
- Internal & External Submerged Arc Welding
- Weld Seam Inspection & Non Destructive Testing
- Hydrostatic Pressure Testing
- Dimensional Inspection & Verification
- Final Quality Approval & Dispatch
Each stage is carefully monitored to ensure full compliance with applicable API, ASME and customer specific project requirements.
![]()
Applications
Applications of LSAW Pipes
LSAW pipes are widely used across multiple industries requiring large diameter, high strength piping solutions.
Oil & Gas Transmission Pipelines
Used in long distance oil and gas transmission pipelines requiring high strength welded pipe.
Petrochemical Plants
Suitable for large bore process piping in high pressure petrochemical processing facilities.
Refineries
Widely used in refinery process and utility piping requiring consistent wall thickness and strength.
Offshore & Marine Projects
Designed for offshore platforms and marine installations requiring corrosion-resistant large-diameter flanges and pipes.
Power Generation Plants
Used in cooling water, steam and utility piping systems across power generation facilities.
Water Transmission Pipelines
Essential for large diameter water transmission and distribution pipeline systems and infrastructure projects.
Wastewater Treatment Facilities
Used in large bore wastewater collection, transfer and treatment facility piping systems.
Infrastructure & Piling Projects
Widely used in infrastructure construction, bridge foundations and piling engineering applications.
Why choose us
Why Choose MRB Forge LSAW Pipes?
MRB Forge is trusted worldwide for manufacturing high performance LSAW pipes. Our team works closely with procurement engineers and EPC contractors to deliver pipes that meet exact dimensional, material and pressure requirements for critical piping applications.
Our commitment to precision welding, quality compliance and on time delivery sets us apart, with every order managed to the same standard of care regardless of size or complexity.
Experienced LSAW Pipe Manufacturer
Years of manufacturing experience supplying high performance LSAW pipes to oil & gas, petrochemical, power generation and heavy engineering industries across global markets.
Quality & International Standards
Manufactured using premium raw materials and precision welding technology with strict quality control processes ensuring full compliance with applicable international standards.
Custom Manufacturing Solutions
Large diameter LSAW pipes available in a wide range of wall thicknesses, material grades and custom configurations to meet diverse project and application requirements.
Competitive Pricing & On Time Delivery
Cost effective solutions, reliable delivery schedules and dedicated customer support for a seamless and efficient procurement experience.
![]()
FAQ
Frequently Asked Questions
LSAW (Longitudinal Submerged Arc Welded) pipes are large-diameter steel pipes manufactured by forming steel plates into cylindrical shapes and joining them with longitudinal submerged arc welding.
LSAW pipes are commonly manufactured using carbon steel, high-strength low alloy steel, and API 5L line pipe grades.
Our LSAW pipes comply with API 5L, ASTM A671, ASTM A672, ASTM A252, ASME, ANSI, and ISO standards.
Each pipe undergoes hydrostatic testing, ultrasonic testing, radiographic testing, PMI, dimensional inspection, visual inspection, and third-party inspection when required.
Yes. We manufacture LSAW pipes in custom sizes, lengths, wall thicknesses, material grades, and protective coatings according to project specifications. Contact Us to discuss your project requirements.
LSAW pipes are widely used in oil & gas, petrochemical, offshore, marine, water transmission, power generation, infrastructure, mining, piling, and heavy engineering projects.