IS 4923 CertifiedIS 3601 CertifiedPrimary Steel ProducerIMS Certified

Infrastructural Solutions: SRMB Realfabrica Hollow Sections for Public Infrastructure

Public infrastructure carries a different kind of responsibility than a private building or industrial facility: the structures on this page are used by thousands of people a day, often unsupervised, exposed to weather around the clock, and expected to stay safe with minimal maintenance for decades. A hollow section specified for a railway platform or a foot over bridge isn't just carrying steel design loads, it's carrying public trust in whether the structure holds up.

Get Specs →WhatsApp Us
IS 4923
SHS & RHS Standard
IS 3601
CHS Standard
3
Section Shapes
PAWS
Quality Technology
Why Specify

Why Infrastructure Projects Specify SRMB Realfabrica

Steelworkers tapping molten metal on the furnace floor
Primary Steel Producer
Classified by the Joint Plant Committee, Ministry of Steel — a government-recognised status relevant to public procurement and tender eligibility.
ISI certification mark
IS Code Certified
Square & rectangular to IS 4923, circular to IS 3601 — consistent chemistry across every delivery batch for multi-phase rollouts.
PAWS Technology — Physical property, Accurate length, Weld superior, Superior surface quality
PAWS Technology QC
Digital UTM & Spectrometer testing on every batch — batch-level documentation supports the material traceability public works contracts require.
Coil rolled into hollow sections, then inspected against a specification sheet
Product Traceable
Every length embossed with SRMB brand mark and ISI logo — supports quality audits and asset registers over decades of service life.
Where It's Used

Infrastructural Applications

Bus terminal with a tubular steel canopy over the bus baysCHS · SHS
  • Circular CHS for shelter posts — wind-resistant, rounded low-injury profile near pedestrian paths and road traffic
  • Square SHS for roof framing and platform shelter columns — flat faces fix roofing sheets and signage panels directly
  • Circular CHS for platform edge railings and handrails — grip-friendly, dent-resistant
  • IS 4923/3601 tight tolerance — modular city-wide shelter designs assemble identically at site 100 as at site 1
Bus Stands & Railway Platforms
Hover
  • Circular CHS for shelter posts — wind-resistant, rounded low-injury profile near pedestrian paths and road traffic
  • Square SHS for roof framing and platform shelter columns — flat faces fix roofing sheets and signage panels directly
  • Circular CHS for platform edge railings and handrails — grip-friendly, dent-resistant
  • IS 4923/3601 tight tolerance — modular city-wide shelter designs assemble identically at site 100 as at site 1
Roofed pedestrian foot-over bridge on a blue steel trussCHS · RHS
  • Circular CHS for main truss members and railings — torsional and vibration resistance for spans over live rail and road
  • Rectangular SHS for deck framing and stringers — bending resistance along the bridge's walking span
  • Minimal maintenance access once in service — consistent wall thickness and corrosion-resistant finish are critical from day one
  • Seal open ends at fabrication — prevents internal moisture ingress in permanently in-service outdoor structures
Foot-Over Bridges
Hover
  • Circular CHS for main truss members and railings — torsional and vibration resistance for spans over live rail and road
  • Rectangular SHS for deck framing and stringers — bending resistance along the bridge's walking span
  • Minimal maintenance access once in service — consistent wall thickness and corrosion-resistant finish are critical from day one
  • Seal open ends at fabrication — prevents internal moisture ingress in permanently in-service outdoor structures
Stadium bowl under a long-span curved steel roofCHS · SHS
  • Circular CHS for roof trusses — resists bending on both axes, enabling curved long-span rooflines typical of modern stadiums
  • Square SHS for seating tier framing — flat faces suit repetitive, modular construction across large seating bowls
  • High strength-to-weight ratio — lighter roof reduces foundation load and overall substructure cost
  • IS 4923 and IS 3601 documented conformity — structural engineer's basis for long-span, weight-sensitive design
Stadiums & Arenas
Hover
  • Circular CHS for roof trusses — resists bending on both axes, enabling curved long-span rooflines typical of modern stadiums
  • Square SHS for seating tier framing — flat faces suit repetitive, modular construction across large seating bowls
  • High strength-to-weight ratio — lighter roof reduces foundation load and overall substructure cost
  • IS 4923 and IS 3601 documented conformity — structural engineer's basis for long-span, weight-sensitive design
Airport terminal concourse under a curved tubular steel roofCHS · SHS
  • Circular CHS for terminal roof structures and canopies — long-span capability and torsional resistance under wind
  • Square/rectangular SHS for facade and architectural framing — flat faces integrate with glazing and cladding systems
  • Fixed public opening deadlines — in-house coil supply means predictable delivery without external supplier risk
  • IS 3601 and IS 4923 conformity checked in-house — consistent batch quality independent of external supply variability
Airport Structures
Hover
  • Circular CHS for terminal roof structures and canopies — long-span capability and torsional resistance under wind
  • Square/rectangular SHS for facade and architectural framing — flat faces integrate with glazing and cladding systems
  • Fixed public opening deadlines — in-house coil supply means predictable delivery without external supplier risk
  • IS 3601 and IS 4923 conformity checked in-house — consistent batch quality independent of external supply variability

Shape Selection Guide

ApplicationRecommended ShapeWhy
Airport terminalsCircular for roof structure, Square/Rectangular for facade framingLong span and torsional resistance versus flat faces for glazing integration
Bus standCircular for support posts, Square/Rectangular for roof framingWind resistance and low injury risk profile versus flat roofing fixing
Foot over bridgeCircular for trusses and railings, Rectangular for deck framingTorsional and vibration resistance versus bending resistance along span
Railway platformsSquare for shelters and signage, Circular for railingsFlat faces for cladding and signage versus grip and dent resistance
StadiumCircular for roof trusses, Square for seating tier framingCurved, long-span roof performance versus repetitive modular construction

This table is a starting reference. Final shape, size, thickness, and grade should always be confirmed against your structural engineer's load calculation and the specific project's design consultant requirements.

Steelworkers tapping molten metal on the furnace floor at the SRMB plant

Why Choose SRMB Realfabrica for Infrastructure Projects

Primary Steel Producer manufacturing
Classified by the Joint Plant Committee, Ministry of Steel — a government recognised status relevant to public procurement and tender eligibility.
One supplier for every shape and every phase
Square, rectangular, and circular sections manufactured at the same integrated plant, supporting multi-phase rollouts without switching vendors mid-project.
IS code conformity
Square and rectangular sections to IS 4923, circular sections to IS 3601, general structural tube to IS 1161.
PAWS Technology quality control
Digital UTM & spectrometer testing on every batch, supporting the documented traceability infrastructure contracts often require.
IMS certification
Covering ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018.
Traceable on site
Every length embossed with the SRMB brand mark and ISI logo specification number, supporting quality audits over a structure's long service life.

Share your required shape, size, grade, and delivery schedule with our technical team, and we'll confirm availability and share a formal specification sheet. Contact us to get started.

Frequently Asked Questions

Circular hollow section is commonly used for airport terminal roof structures and canopies, while square and rectangular sections suit visible facade framing that integrates with glazing and cladding systems.

Circular hollow section is generally preferred for bus stand support posts, offering good wind resistance and a rounded, low injury risk profile, while square or rectangular sections suit roof framing.

Circular hollow section is typically used for foot over bridge trusses and railings, and rectangular hollow section for deck framing, matching torsional resistance needs to bending resistance along the span.

Square hollow section is commonly used for railway platform shelter columns and signage frames, while circular hollow section is used for platform edge railings and handrails.

Circular hollow section is frequently specified for stadium roof trusses, since it resists bending moments on both axes well, supporting the curved, long-span rooflines common in modern stadium design.

It confirms the manufacturer converts raw iron ore into finished steel in-house, a government recognised classification often relevant to public procurement eligibility and consistent, traceable material supply across multi-phase projects.

Yes. Controlled chemistry, corrosion resistant finishing, and sealed open ends support long, low-maintenance service life, important for structures like foot over bridges and railway platforms with limited ongoing access.

Square and rectangular infrastructural hollow sections conform to IS 4923, circular sections conform to IS 3601, and general structural tube also references IS 1161.

Yes. Hollow sections offer a high strength to weight ratio, allowing long spans with lower structural weight and foundation load than an equivalent solid or open section design.

Every SRMB Realfabrica length is embossed with the SRMB brand mark and ISI logo specification number, and every batch is tested and documented, supporting the traceability public works contracts typically require.

Yes. Airport terminals, bus stands, foot over bridges, and railway platforms are largely outdoor structures, so sealing open ends and applying appropriate coatings at fabrication stage is recommended for long service life.

Yes. Since coil for every shape is rolled from our own billet at one integrated plant, delivery scheduling across multi-phase projects like citywide bus stand or railway platform rollouts is more predictable.

Chat Karo · Baat Karo · Mulakat Karo

Your Project Deserves a Real Conversation

Sourcing steel shouldn't mean navigating voicemails, long forms, or waiting days for a callback. Just chat with us — we talk, we understand your project, and then we're there at your place. It's that easy.

WhatsApp Us →Call +91 9147245943