®What We Manufacture
Products We Offer
End-to-end steel construction solutions across India
Featured Product
PEB — Pre-Engineered Building
Steelinfra Systems
Pre-Engineered Buildings — Design to Commissioning
About PEB
Steelinfraprovides Architects, Structural Consultants & End Users turnkey solutions starting from Concept, Design, Analysis, Fabrication, Supply and Installation. Engineered Building Systems provide a cost-effective solution option for a wide range of building needs offering unmatched versatility and benefits.
Steelinfra specializes in providing end-to-end solutions for various unique building and design requirements with a high level of customization. Our reputation for sound technical design development, service, and the pro-active execution of scheduling towards engineering, fabrication, timeline and budget assures the best of quality and service.
Features
- Single source responsibility
- Factory finished quality
- High load bearing capacity
- Faster delivery & installation
- Flexibility in future expansions
- Low maintenance cost
- Earthquake resistant
- Multiple options to meet your budget & requirements
- Conforming to ASIC / IS / any building codes or standards
- Integrated solutions with strip lighting, skylights & ventilators
Products We Offer
Composite Steel Girder's
“Composite” means that the steel structure of a bridge is fixed to the concrete structure of the deck so that the steel and concrete act together, thus reducing deflections and increasing strength. This is done using ‘shear connectors’ fixed to the steel beams and then embedded in the concrete. Composite beams have higher stiffness, thus they have less deflection than steel beams. In other words, Composite beams can cover large spaces without the need of any intermediate columns.
Composite construction is faster because of using rolled steel and pre-fabricated components than cast-in-situ concrete. Girders are intended to be the primary structural supports, and they have a much larger load-bearing capability. They can carry dynamic and rolling loads. Girders are used in large structures, including bridges, road flyovers, and trusses.
Steelinfra Systems
Composite Steel Girder — Fabrication & Installation
Less deflection than standard steel beams
No intermediate columns required
Rolled steel & pre-fabricated components
Bridges, flyovers & trusses
Products We Offer
The rail over bridge / open web girder is a Steel designed structure which allows road traffic to pass over the railway line. The designing and construction of a rail over bridge is one of the major structures in roadways and railways. The main purpose is to reduce traveling time, increase traffic speed, and avoid stopping of road traffic during the passing of trains.
Steelinfra Systems
Open Web Girder — Rail Over Bridge Projects
Reduces Travel Time
Eliminates level crossings, cutting travel time for both road and rail traffic significantly.
Increases Traffic Speed
Allows uninterrupted high-speed movement of trains and road vehicles simultaneously.
Zero Traffic Disruption
Road traffic moves freely at all times — no stoppages during train passages.
Products We Offer
Bow String Girders
BSG — Arch Bridge Engineering
About Bowstring Bridges
A Bowstring bridge is an arch bridge in which the outward-directed horizontal forces of the arch are borne as tension by a chord tying the arch ends — rather than by the ground or bridge foundations. This design transfers the arch's thrust internally, making it ideal for sites where the ground cannot absorb lateral loads.
Girders serve as the primary structural supports with a significantly larger load-bearing capability than conventional beams. They carry both dynamic and rolling loads with exceptional resilience, making them the backbone of large-scale infrastructure — bridges, road flyovers, and heavy-duty trusses.
Types of Girder Bridges
A girder bridge uses girders as the primary means of supporting its deck. The two most common types of modern steel girder bridges are:
Rolled Steel Girders
Standard hot-rolled sections for short to medium spans
Plate Girders
Custom-built from welded plates for heavy loads & long spans
Box Girder
Hollow rectangular section — high torsional stiffness
Steelinfra Systems
Bow String Girder — Arch Bridge Projects
Dynamic Load Capacity
Engineered to carry moving, rolling & impact loads
Large Span Coverage
Ideal for river crossings, flyovers & rail bridges
Internal Force Transfer
Arch thrust absorbed by tie chord — no ground spread
Turnkey Execution
Design, fabrication & site erection by Steelinfra
Products We Offer
Heavy Engineering Steel Fabrication
Large-scale, high-strength steel structures engineered for the most demanding industrial and infrastructure applications — from pressure vessels to structural frames, offshore platforms and beyond.
Heavy engineering steel fabrication involves the manufacturing of large, complex, and high-strength steel structures used in industrial and infrastructure projects. This process includes cutting, welding, forming, and assembling steel components to produce items such as pressure vessels, structural frames, heavy machinery, and offshore platforms.
It requires advanced engineering, precision machining, and strict quality control to meet industry standards and withstand demanding operating conditions — backed by our ISO 9001:2015 certified facility in Bangalore.
5,000 MT
Annual Capacity
ISO
9001:2015 Certified
18+
Years of Experience
Oil & Gas
Pressure vessels, skid structures & process equipment
Power Generation
Boiler structures, turbine frames & plant steelwork
Mining
Heavy-duty conveyors, hoppers & crushing structures
Shipbuilding
Marine steel fabrications & offshore platforms
Construction
Structural frames, mezzanines & industrial buildings
Infrastructure
Bridges, dams, tunnels & civil steel structures
Our Fabrication Work
Steelinfra Systems
Heavy Engineering Steel Fabrication Facility
Materials Used
High-Strength Carbon Steel
Primary structural material for frames, vessels and supports — grades up to S690.
Alloy Steels
Chromium-molybdenum and other alloy grades for high-temperature and high-pressure applications.
Stainless Steel
Selected for corrosion-critical environments such as chemical processing and marine applications.
Our Capabilities
Cutting & Forming
CNC plasma/flame cutting, press braking and roll forming to tight tolerances.
Welding & Joining
MIG, TIG, SAW and FCAW welding — certified welders, full NDT inspection.
Precision Machining
Heavy-duty machining for flanges, nozzles, base plates and load-bearing interfaces.
Quality Control & Testing
RT, UT, MPI and hydro testing — ISO 9001:2015 certified quality management system.
IS:2062
Structural Steel Standard
ASME
Pressure Vessel Code
AWS D1.1
Welding Standard
ISO 9001
Quality Management
Heavy Engineering
Need a Steel Fabrication Partner?
Share your project scope — our engineering team will prepare a detailed fabrication proposal within 24 hours.
Steel Formwork & Precast Steel Moulds
Elegant solutions for architects, design consultants & construction companies — engineered for precision, speed and reusability.
About Precast Steel Moulds
Steelinfra specialises in the design and manufacture of Precast Concrete Moulds, providing elegant solutions for architects, design consultants and construction companies.
SteelinfraPrecast concrete is a construction product produced by casting concrete in a reusable mould or “form”, cured in a controlled environment, transported to the construction site and lifted into place (“tilt up”). Precast is used within both exterior and interior walls.
Our steel moulds ensure great dimensional accuracy, superior surface finish and consistent quality across every pour — enabling faster construction timelines with zero compromise on structural integrity.
Reusable
Mould System
Turnkey
Design & Manufacture
ISO
9001:2015 Quality
Benefits of Precast Systems
Great Dimensional Accuracy
Precision-machined steel moulds deliver consistent dimensions and superior surface finishes every pour.
Better Quality Critical Elements
Controlled factory curing produces higher-strength, denser concrete than on-site casting.
Design Flexibility
Custom mould shapes enable complex architectural profiles, curves and repeating façade elements.
Faster Erection at Site
Pre-manufactured units are craned directly into position — dramatically cutting construction schedules.
No On-Site Storage Needed
Eliminates on-site space requirements for moulds, reinforcement and wet concrete operations.
Our Precast Mould Work
Steelinfra Systems
Steel Formwork & Precast Concrete Mould Facility
Why Choose Precast
Concrete Constructions — Key Advantages
Design-Build Efficiency
Simultaneous site prep and factory casting slashes overall project schedules.
Aesthetically Versatile
Any finish — exposed aggregate, smooth, textured or custom-formed profiles.
Reduced Costs
Reusable moulds, lower labour on-site and faster installation cut total project cost.
Environment Resistant
Factory-cured concrete withstands extreme weather, corrosion and seismic loads.
Thermal Efficient
High thermal mass regulates interior temperature, reducing HVAC energy demands.
Low Maintenance
Dense, impermeable concrete surface requires minimal upkeep over decades.
Sound Control
Solid precast walls deliver superior acoustic insulation between spaces.
Wi-Fi Compatible
Non-metallic envelope allows full wireless signal penetration throughout the structure.
IS:1343
Prestressed Concrete Code
IS:456
Plain & Reinforced Concrete
Reusable
High-Cycle Steel Moulds
Turnkey
Design to Delivery
Steel Formwork
Need Custom Precast Moulds?
Share your project drawings — our team will design and manufacture the right mould system for your construction requirements.
Products We Offer
Tensile Membrane Structures
Architect-grade fabric and steel tensile systems for stadiums, airports, plazas and industrial facilities — lightweight, long-span, and architecturally distinguished.
About Tensile Membrane Structures
Tensile membrane structures are architectural systems where high-strength fabric membranes — PTFE-coated fibreglass, ETFE foil, or PVC-coated polyester — are held in elegant tension by precision steel cables, masts, arches, and anchor points. These structures derive their strength and form from the geometry of tension itself.
Steelinfra designs, fabricates, and installs the complete steel substructure — masts, cable assemblies, ring beams, and anchor foundations — engineered to exact load specifications and coordinated with membrane suppliers for seamless turnkey delivery anywhere in India.
Turnkey
Steel & Membrane
ISO
9001:2015 Certified
Pan-India
Installation
Membrane Types We Work With
PTFE-Coated Fiberglass
Premium architectural-grade membrane — 30+ year lifespan, self-cleaning, flame retardant
PVC-Coated Polyester
Versatile and cost-effective — ideal for commercial, industrial and temporary structures
ETFE Cushion / Foil
Ultra-lightweight transparent film — maximum natural light with minimal structural load
HDPE Shade Fabric
Open-weave UV-resistant fabric for shading, ventilation and solar protection
Tensile Structure Gallery
Large-Span Membrane Roof
Airport terminal application
Skylight Tensile System
Architectural membrane engineering
Where We Deploy These Structures
Applications
Stadiums & Sports Arenas
Large-span canopies over spectator stands, open-air venues and multipurpose arenas.
Airports & Transit Hubs
Departure forecourts, walkway covers and terminal extension canopies.
Amphitheaters & Event Venues
Outdoor performance venues, exhibition halls and public gathering spaces.
Car Park Shading
Solar-protection canopies for open-air parking facilities and forecourts.
Bus Shelters & Platforms
Rapid-deploy modular canopies for public transport infrastructure.
Industrial Shade Structures
Protection for material storage, equipment yards and open production areas.
Steel Mast & Column Structures
Hot-rolled, hollow-section and fabricated mast columns — precision-engineered for exact height, load, and aesthetic profile requirements.
Cable Net & Tension Rod Systems
High-strength stainless steel spiral strand cables, rods, and end fittings — designed for full tensile load capacity with long fatigue life.
Peripheral Frames & Ring Beams
Welded steel ring beams, edge beams and boundary frames that define the membrane geometry and transfer loads to supporting columns.
Foundation & Anchor Plates
Custom base plates, cast-in anchors and ground anchorage systems to transfer tensile and compression forces safely into the foundation.
Ultra-Lightweight
1/5th the weight of concrete roofs — radically reduces structural load on supporting columns.
Large Column-Free Spans
Spans up to 200 m+ without intermediate columns — ideal for arenas, terminals and plazas.
Natural Light Diffusion
PTFE and ETFE membranes transmit soft daylight — reducing artificial lighting demands.
All-Weather Protection
Engineered for wind, snow and UV loads to international structural performance standards.
Minimal Maintenance
Self-cleaning PTFE surfaces and stainless cable systems — decades of service life.
Architectural Statement
Fluid, iconic forms that define skylines — every structure becomes a landmark.
EN 13782
Temporary Structures Standard
IS:875
Wind & Snow Load Code
ASCE 7
Structural Load Standard
ISO 9001
Quality Management
Tensile Membrane Structures
Planning a Tensile Structure Project?
Share your project brief — our engineering team will prepare a detailed structural proposal for the steel substructure within 24 hours.
Products We Offer
Civil Construction Products
Completing the full spectrum of construction — from structural steel to finished civil works. A comprehensive portfolio of civil construction materials, systems and solutions, delivered with the same precision and quality that defines every Steelinfra project.
Metal Roofing & Cladding
Galvanised, Galvalume and colour-coated metal roofing sheets, insulated sandwich panels and wall cladding — engineered for superior weather resistance, thermal efficiency and 50-year durability.
Composite Floor Decking
High-strength steel deck sheets for composite slab construction — acts as permanent formwork, eliminates propping and delivers superior load distribution across large column-free spans.
Purlins, Girts & Eave Struts
Cold-formed Z and C section purlins, girts, eave struts and anti-sag rod systems — precision roll-formed to tight tolerances for PEB, industrial and commercial building applications.
Gratings & Chequered Plates
Bar gratings, chequered plates and anti-skid industrial flooring for mezzanine decks, elevated platforms, walkways, stairways and drainage covers — rated for heavy-duty environments.
Foundation & Anchor Systems
Precision-machined anchor bolts, base plates, shear studs and epoxy grout pads — engineered for exact load transfer from steel superstructure to foundation, with full material traceability.
Pre-Engineered Civil Structures
End-to-end civil works — RCC foundations, plinth beams, grade slabs, paving, drainage, utility trenches and road works — delivered turnkey and integrated seamlessly with our steel superstructures.
Ready to Build?
Need Civil Construction Products?
Talk to our team for detailed specifications, pricing and turnkey execution support — we respond within 24 hours.
Products We Offer
Railways Steel Infrastructure Works
Engineering India's Rail Network — Bridge by Bridge
Steelinfra is a trusted partner to Indian Railways and rail infrastructure agencies for the design, fabrication and erection of mission-critical steel structures. Our portfolio spans Railway Over Bridges (ROB), Foot Over Bridges (FOB), platform shelters, signal gantries and heavy span railway bridge structures — all engineered to the strictest Railway Board and IRS standards.
Every structure is designed for dynamic and rolling loads, high fatigue life and long-term resilience under continuous rail traffic — backed by our ISO 9001:2015 certified fabrication facility and a dedicated commissioning team for on-site erection.
Our Project
Railway Over Bridge
Steel superstructure over active railway track
Rail Over Bridges
Steel spans designed for road traffic over active railway tracks — engineered to IRS loadings.
Foot Over Bridges
Pedestrian FOBs at railway stations — modular, rapid-erect steel designs with anti-skid decking.
Platform Structures
Canopy roofing, shelters and shade structures for railway platforms — lightweight and long-span.
Signal Gantries & Masts
Overhead signal gantries, catenary mast supports and track-side steel infrastructure.
IRS
Railway Board Standards
IS:800
Structural Steel Code
100 MT+
Span Capacity
Pan-India
Railway Zone Coverage
Products We Offer
National Highways Authority of India · Structural Steel for India's Highway Network
Steelinfra delivers high-performance structural steel solutions for National Highway infrastructure — including grade separators, flyovers, highway bridges, road over bridges and safety systems. Our work aligns with MoRTH specifications, IRC codes and NHAI project requirements, executed with the speed and precision that highway deadlines demand.
From fabrication in our Bangalore facility to on-site erection anywhere in India, we provide a single-point solution — design, supply, and commissioning — for some of India's most demanding highway infrastructure projects.
Grade Separators & Flyovers
Multi-lane steel superstructures for highway grade separation — designed for IRC Class AA and 70R loading.
Highway Steel Bridges
Plate girder, composite and box girder bridges for national and state highways — turnkey design to commissioning.
Crash Barriers & Safety Steel
W-beam guard rails, crash barriers, median barriers and road safety steel systems to MoRTH specifications.
IRC
Highway Bridge Code
MoRTH
Specifications Compliant
IS:800
Structural Steel Standard
Turnkey
Design to Commissioning
Work with Us
Railway or Highway Project?
Share your project scope — our engineering team will prepare a detailed proposal within 24 hours.