ERW GI (Galvanised) Pipes & Tubes

IS:1239 Part-I / IS:4736 · Manufactured & Exported by Great India Pipes

Great India Pipes operates a large-scale manufacturing unit dedicated to producing and exporting premium-quality ERW GI (Galvanised) Pipes and Tubes, trusted by industries across India and beyond.

What is Galvanised Steel?

Galvanised steel is steel coated with a protective layer of zinc. During the hot-dip galvanizing process, steel is immersed in a molten zinc bath, forming a tough, uniform barrier coating. Zinc’s natural corrosion resistance ensures long-term protection in both outdoor and indoor environments — guarding against moisture, humidity, and dry atmospheric conditions alike.

Why Choose GI Pipes?

Galvanised steel pipes and tubes have been among the most widely used construction materials worldwide for decades. Designers, builders, and project managers rely on zinc-coated steel for its exceptional structural performance, even in the harshest conditions. GI pipes effectively resist the damaging effects of wind, water, road salts, and corrosive industrial atmospheres.

Key Applications

• Plumbing & water supply systems
• Structural & construction frameworks
• Scaffolding & fencing
• Agricultural irrigation
• Industrial piping & ducting
• Outdoor infrastructure exposed to harsh weather

Available Grades

Light, Medium & Heavy grades — available in a wide range of sizes to suit every project requirement.

ERW MS Black Pipes & Tubes

IS:1239 / IS:3589 · Manufactured & Exported by Great India Pipes

Great India Pipes is a leading manufacturer and exporter of ERW Black Steel Pipes and Tubes, engineered for reliability across a wide spectrum of industrial and infrastructure applications.

What are MS Black Pipes?

Mild Steel (MS) pipes are produced from low carbon steel (less than 0.25% carbon content), which makes them easy to weld and form into various shapes and sizes. When steel pipe is forged, a black oxide scale naturally forms on the surface, giving it the characteristic dark finish. A protective coating of oil or paint is then applied at the factory, ensuring long-term rust resistance with minimal maintenance.

Why Choose Black Steel Pipes?

Black Steel Pipes offer excellent versatility and durability for non-potable applications. Their low carbon composition means they do not harden, making them highly workable — easy to cut, thread, and fit for any project. Once coated, these pipes require very little upkeep and deliver dependable performance over years of service.

Key Applications

• Gas distribution (indoor & outdoor)
• Hot water circulation in boiler systems
• Firefighting & HVAC systems
• Line pipes for oil & petroleum industries
• Water wells, gas & sewage pipelines
• Structural, scaffolding & general engineering

Installation & Fittings

Black Steel Pipes are cut and threaded to fit the job using heavy-duty tube cutters, cutoff saws, or hacksaws. Fittings are of Black Malleable Cast Iron, connected by screwing onto threaded pipe with pipe joint compound. Larger diameter pipes are welded rather than threaded. Available in standard 21 feet lengths.

Important Note

Black Steel Pipes are not suitable for potable (drinking) water supply, drain waste, or vent lines. Additional protective care is recommended under extreme environmental conditions.

Seamless Pipes & Tubes

IS:1161 / IS:3589 · Supplied by Great India Pipes

Great India Pipes supplies high-quality Seamless Pipes and Tubes sourced from India’s leading manufacturers, catering to industries that demand superior strength and reliability under extreme operating conditions.

What Makes Seamless Pipes Different?

As the name suggests, a seamless pipe has no seam or weld-joint — unlike welded pipes where the joint is inherently the weakest point. This gives seamless pipes a uniform structure and consistent strength across the entire pipe body, making them capable of withstanding significantly higher pressures, temperatures, and mechanical stresses than their welded counterparts.

Why Choose Seamless?

The absence of a weld-joint means there is no weak link — the pipe performs uniformly even in highly corrosive atmospheres and demanding environments. Seamless pipes are the preferred choice wherever safety, durability, and performance under pressure are non-negotiable. Available in a wide size range up to 20”, these pipes serve customers across virtually every industrial sector.

Key Applications

• Oil & Gas exploration and transportation
• Refineries & petrochemical plants
• Chemical & fertilizer industries
• Power generation & boiler systems
• Automotive & bearing manufacturing
• Mechanical & structural engineering
• Hydraulic lines & high-pressure systems

Global Reach

Seamless pipes from India’s top manufacturers are exported to oil-fields and industrial markets across the US, Canada, Latin America, Europe, Africa, and Asia — a testament to the quality and reliability that Great India Pipes stands behind.

Square & Rectangular Hollow Section Pipes

IS:4923 · Manufactured & Supplied by Great India Pipes

Great India Pipes offers a comprehensive range of Square and Rectangular Hollow Section (SHS & RHS) Pipes, widely recognised for their structural efficiency, aesthetic versatility, and ease of fabrication across modern construction and industrial projects.

What are Hollow Section Pipes?

Hollow sections are closed steel profiles with square or rectangular cross-sections and uniform wall thickness on all sides. Their geometric shape provides excellent load-bearing capacity in multiple directions, making them significantly more efficient than open sections like I-beams or channels for many structural applications. The hollow interior also allows for concealed wiring, plumbing, or reinforcement when needed.

Why Choose Hollow Sections?

Hollow section pipes deliver an outstanding strength-to-weight ratio, reducing overall material consumption and dead load in structures. Their flat surfaces make them easy to weld, bolt, and connect — simplifying fabrication and reducing labour costs. The clean, modern profile also makes them a preferred choice for exposed architectural steelwork where visual appeal matters as much as performance.

Key Applications

• Building frames, columns & structural supports
• Bridges, flyovers & infrastructure projects
• Industrial sheds, warehouses & factory construction
• Furniture, railings & display fixtures
• Bus body fabrication & vehicle chassis
• Agricultural equipment & greenhouse structures
• Transmission towers & solar panel mounting

Available Specifications

Offered in a wide range of sizes and wall thicknesses to suit every project requirement — from light-duty furniture-grade sections to heavy structural profiles. All sections conform to IS:4923 standards, ensuring consistent quality and dimensional accuracy.

Large Diameter Steel Pipes

IS:3589 / IS:5504 · Supplied by Great India Pipes

Great India Pipes supplies heavy-duty Large Diameter Steel Pipes designed for high-capacity fluid transmission, major infrastructure, and critical industrial applications where strength, durability, and volumetric efficiency are paramount.

What are Large Diameter Pipes?

Large diameter steel pipes typically range from 16” and above, engineered to transport large volumes of water, oil, gas, and other fluids over long distances. Manufactured through submerged arc welding (SAW) or spiral welding processes, these pipes offer exceptional structural integrity and are built to handle high internal pressures and heavy external loads, including underground burial and deep-sea applications.

Why Choose Large Diameter Pipes?

When a project demands the movement of high volumes under pressure — whether it’s a cross-country water pipeline, an offshore oil transmission line, or deep foundation piling — large diameter pipes are the only viable solution. Their thick walls and robust construction ensure decades of reliable service with minimal maintenance, even in aggressive soil conditions and seismically active zones.

Key Applications

• Municipal water transmission & distribution
• Oil & gas transportation pipelines
• Sewage & drainage infrastructure
• Foundation piling & deep bore wells
• Hydroelectric & irrigation projects
• Industrial process piping & slurry lines
• Bridge construction & marine piling

Available Specifications

Supplied in a comprehensive range of diameters and wall thicknesses conforming to IS:3589 and IS:5504 standards. Custom lengths and special coatings (anti-corrosion, cement lining) are available on request to meet specific project requirements.

Seamless Boiler Pipes & Tubes

IS:2871 / ASTM A192 · Supplied by Great India Pipes

Great India Pipes supplies precision-engineered Seamless Boiler Pipes and Tubes, purpose-built for critical high-temperature and high-pressure environments where safety and performance cannot be compromised.

What are Boiler Pipes & Tubes?

Boiler tubes are seamless steel pipes specifically designed to carry superheated steam, hot water, and other fluids within boiler systems and heat exchange equipment. Unlike standard pipes, boiler tubes are manufactured to tighter dimensional tolerances and undergo rigorous quality testing — including hydrostatic, flattening, and flaring tests — to ensure they perform reliably under sustained thermal stress and elevated pressures.

Why Choose Seamless Boiler Tubes?

The seamless construction eliminates the weld-joint — the single most vulnerable point in any pipe operating under extreme conditions. This means uniform wall thickness, consistent grain structure, and superior resistance to creep, thermal fatigue, and pressure surges. For boiler and heat exchanger applications, seamless is not just a preference — it is often a regulatory requirement for safety compliance.

Key Applications

• Steam boilers & superheaters
• Thermal & nuclear power plants
• Heat exchangers & condensers
• Economisers & air preheaters
• Petrochemical & refinery furnaces
• Sugar mills & process industries
• High-pressure steam distribution lines

Available Specifications

Supplied conforming to IS:2871 and ASTM A192 standards in a range of outer diameters and wall thicknesses. Each tube undergoes stringent quality checks for dimensional accuracy, surface finish, and pressure-bearing capacity to meet the exacting demands of boiler and power plant applications.