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Steel Structures

Custom-engineered structural steel frameworks fabricated with precision — built to IS, AISC, and AWS standards for demanding industrial and infrastructure applications.

Steel structure fabrication

What Are Steel Structures?

A steel structure is a load-bearing framework made primarily from structural steel members — columns, beams, trusses, braces, and connections — engineered to carry the building's weight, operational loads, wind, seismic forces, and other loads safely into the foundation. Unlike PEB systems which use pre-designed, tapered built-up sections optimised for specific bay configurations, custom steel structures are designed from first principles for unique architectural requirements, heavy industrial loads, and complex geometries.

Steel offers the highest strength-to-weight ratio of any common construction material. With yield strengths ranging from 250 MPa (mild steel) to 690 MPa (quenched and tempered), structural steel enables longer spans, taller buildings, and more flexible interior spaces than any alternative framing system. Steel is 100% recyclable, and modern fabrication techniques — CNC cutting, robotic welding, automated blasting — ensure consistent quality across every tonne of steel we produce.

Types of Steel Structures We Build

Each structural system is tailored to the specific demands of the project.

01

Portal Frame Structures

The most cost-effective solution for single-storey industrial buildings. Columns and rafters connected through rigid moment-resisting joints. Clear spans from 12 m to 60 m. Ideal for warehouses, workshops, and agricultural buildings.

02

Multi-Storey Steel Frames

Vertical structural frames with columns, floor beams, and composite steel-concrete slabs for buildings up to 15+ storeys. Beam-to-column moment connections or braced frames resist lateral loads. Used for commercial towers, parking structures, and institutional buildings.

03

Truss & Space Frame Systems

Triangulated roof trusses (parallel chord, pitched, bowstring) for large-span roofs up to 100 m. Space frames and lattice girders for airport terminals, sports stadiums, exhibition halls, and convention centres requiring column-free interiors.

04

Bridge & Infrastructure Steelwork

Plate girder and truss bridges, foot overbridges, railway platform shelters, and flyover steelwork. Designed as per IRC / IRS / AASHTO standards with fatigue-rated details. Hot-dip galvanized for corrosion protection.

05

Transmission & Telecom Towers

Self-supporting and guyed lattice towers for power transmission (132 kV, 220 kV, 400 kV) and telecom. Hot-dip galvanized angles and bolts. Designed as per IS 802 / ASCE 10 / TIA-222.

06

Industrial Platforms & Pipe Racks

Custom steel platforms, mezzanine floors, equipment support structures, cable trays, and pipe-rack systems for process plants, refineries, and material handling facilities. Designed for heavy concentrated loads and thermal movements.

Technical Specifications

Our fabrication facility is equipped to handle the most demanding structural steel specifications.

ParameterSpecification
Steel GradesIS 2062 E250 / E350 / E410 (Fe 410 / Fe 490 / Fe 540), ASTM A36, ASTM A572 Grade 50/60, ASTM A992, S275 / S355 (EN 10025)
Design StandardsIS 800 (Limit State Method), AISC 360 (ASD / LRFD), Eurocode 3 (EN 1993), BS 5950
Welding StandardsAWS D1.1 (structural), AWS D1.5 (bridge), IS 9595, EN 1090 (CE marking)
Bolting StandardsIS 1367 / ISO 898 (Grade 8.8 / 10.9), ASTM A325 / A490, turn-of-nut or direct-tension indicator (DTI) method
Fabrication Capacity1,500 MT per month in a 50,000 sq.ft. facility with CNC plasma cutting, beam drilling line, robotic welding, and automated shot blasting
Section SizesBeams up to 1,500 mm depth (built-up), columns up to 2,000 mm depth, plates up to 50 mm thickness, angles up to 200×200×20 mm
NDT CapabilitiesUltrasonic Testing (UT) — AWS D1.1 / IS 12652; Magnetic Particle Inspection (MPI/MT) — ASME V; Dye Penetrant Testing (DPT)
Coating SystemsShop primer (zinc-rich epoxy), high-build epoxy, polyurethane (for C4/C5 corrosion environments), hot-dip galvanizing (up to 12 m bath), intumescent fireproofing
Fire ProtectionIntumescent coating up to 120 minutes, cementitious fireproofing, board encasement, or concrete encasement as per NBC 2016 / IS 1642
Tolerance StandardsIS 7205 / AISC Code of Standard Practice — Class B (architectural) or Class C (industrial)
Seismic DesignSpecial Moment Frame (SMF), Ordinary Moment Frame (OMF), or Concentric Braced Frame (CBF) per IS 1893 / AISC 341
Surface PreparationSa 2.5 (near-white metal) — abrasive shot blasting as per ISO 8501-1 / SSPC-SP10
BIM / 3D ModelingTekla Structures, Revit, STAAD Pro, ETABS

Our Fabrication Process

From raw steel to finished structure — every step is governed by documented quality procedures.

01

Structural Design & Detailing

Our engineering team performs 3D modelling and structural analysis using STAAD Pro / ETABS / Tekla. Connection design, erection sequence planning, and clash detection are completed before any material is ordered.

02

Material Procurement & Testing

Steel is sourced from ISO-certified mills (SAIL, JSW, TATA, AM/NS) with mill test certificates. Incoming material is tested for chemical composition and mechanical properties in our QC lab.

03

CNC Cutting & Drilling

CNC plasma cutting (up to 50 mm plate), automated beam drilling lines, and angle cutting with punch/drill combination machines ensure every component matches the 3D model exactly.

04

Robotic & Manual Welding

Submerged arc welding (SAW) for long seams on built-up sections. Robotic MIG welding for repetitive connections. Certified welders (AWS D1.1 / IS 9595) for all critical joints.

05

Surface Preparation & Coating

Components pass through automated shot blasting (Sa 2.5), followed by zinc-rich primer application in our spray booth. DFT checked with digital thickness gauges. Galvanizing outsourced to approved HDG vendors.

06

Inspection, Packing & Dispatch

Trial assembly for critical connections. Dimensional verification against approved shop drawings. NDT as required. Components are marked, bundled, and shrink-wrapped for transport.

Steel vs. Concrete — A Comparison

Understanding the right structural material for your project.

Speed of Construction

Steel structures are 40–50% faster to erect than equivalent reinforced concrete structures. No formwork, no curing time, and no weather delays during fabrication.

Weight & Foundation Savings

Steel structures weigh 30–50% less than concrete equivalents. Lighter foundations reduce excavation, reinforcement, and concrete costs by up to 25%.

Flexibility & Adaptability

Steel buildings can be easily modified, extended, or retrofitted. Mezzanines can be added, spans can be extended, and entire bays can be dismantled and relocated.

Need a Custom Steel Structure?

Tell us your requirements — our structural engineers will prepare a free feasibility study and budget estimate.

Submit Your Requirements