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Inox Steel India is a trusted manufacturer and global supplier of IS 4923 Hollow Sections, including Square Hollow Sections (SHS) and Rectangular Hollow Sections (RHS) engineered for structural and fabrication applications. Manufactured strictly in accordance with IS 4923:2017, these hollow sections are widely used in building frameworks, towers, heavy fabrication, walkways, trusses, steel structures, and engineering applications where strength, dimensional accuracy, and reliability are critical.
IS 4923 covers cold-formed, high-frequency welded structural hollow steel sections with grades such as YSt 210, YSt 240, YSt 310, and YSt 355. These grades offer superior mechanical strength, weldability, and consistency, making them one of the most preferred section standards in India for light, medium, and heavy structural applications.
Inox Steel India manufactures IS 4923 hollow sections in sizes ranging from 16×16 mm to 300×300 mm (SHS) and 25×10 mm to 400×200 mm (RHS) with thicknesses from 1.0 mm to 12.5 mm, and lengths up to 12 meters. Options include black (bare) sections, pre-galvanized sections, and hot-dip galvanized (HDG) for corrosion-prone environments.
With a strong supply network across India, the Middle East, Africa, and Southeast Asia, our IS 4923 hollow sections are widely used by fabrication companies, engineering firms, EPC contractors, OEM manufacturers, and infrastructure developers seeking quality-approved hollow steel sections with reliable performance.
The manufacturing of IS 4923 hollow sections follows controlled forming and welding processes to ensure compliance with IS 4923:2017 specifications.
1️⃣ Slit Coil Preparation
High-quality mild steel coils (YSt grades) are slit to precise widths depending on the final SHS or RHS dimensions.
2️⃣ Cold Forming
Slit strips are gradually formed into square or rectangular shapes through multiple precision rollers ensuring uniform corner radii.
3️⃣ High-Frequency Induction Welding (HFIW)
Edges are joined using HFIW technology to ensure a strong, consistent weld seam with minimal distortion.
4️⃣ Weld Treatment & Sizing
The weld bead is scarfed and treated for uniformity before passing through sizing stands for accurate dimensional control.
5️⃣ Straightening & Cut-to-Length
Sections are straightened and cut to standard lengths of 6–12 meters or custom lengths as required.
6️⃣ Optional Galvanization
These coatings provide enhanced corrosion resistance for outdoor applications.
7️⃣ Inspection & Testing
Mechanical testing, dimensional checks, weld seam inspection, and NDT are conducted as per IS 4923 standards.
This controlled process ensures strong, durable, and dimensionally accurate hollow sections suitable for structural engineering applications.
Key Features & Advantages of IS 4923 Hollow Sections
These characteristics make IS 4923 hollow sections the preferred choice for structural steel applications across multiple industries.
👉 Covered in the master datasheet above.
Key Selection Factors for Buyers
Market Demand & Usage Overview
India
Widely used in fabrication, industrial sheds, steel structures, commercial buildings, PEBs, and OEM machinery manufacturing.
Middle East & Gulf
Used in infrastructure, walkways, cable tray supports, solar EPC, and industrial fabrication due to high demand for structural hollow sections.
Africa
Used in agricultural structures, warehouses, and fabrication applications due to durability and ease of installation.
Southeast Asia
Preferred for lightweight structural applications, walkways, frames, towers, and modular steel systems.
IS 4923 Hollow Sections are used extensively in structural and engineering applications due to their strength-to-weight ratio, uniformity, and superior weldability. SHS and RHS manufactured as per IS 4923:2017 are ideal for load-bearing frameworks, fabrication projects, PEB structures, and industrial assemblies.
Below is the structured application segmentation aligned with your sample’s format:
🔹 IS 4923 – YSt 210 (General Structural Use)
Service Use:
Light structural frames • Machinery guards • Storage racks • Portable structures • Walkways
Key Characteristics:
Good formability, economical, suitable for general-purpose fabrication.
Size Range:
SHS: 16×16 to 200×200 mm
RHS: 25×10 to 200×100 mm
Industry Sectors:
Fabrication • Light engineering • OEM manufacturing
🔹 IS 4923 – YSt 240 (Moderate Structural Loads)
Service Use:
Industrial sheds • PEB structures • Frames • Trusses • Platforms
Key Characteristics:
Higher yield strength for moderate structural loading.
Size Range:
SHS: 25×25 to 250×250 mm
RHS: 40×20 to 250×150 mm
Industry Sectors:
Construction • Warehousing • Infrastructure
🔹 IS 4923 – YSt 310 (Heavy Structural Applications)
Service Use:
Industrial structures • Heavy-duty frames • Conveyor supports • Material handling systems
Key Characteristics:
Excellent mechanical properties with higher strength and better load-bearing capability.
Size Range:
SHS: 40×40 to 300×300 mm
RHS: 50×25 to 300×200 mm
Industry Sectors:
Manufacturing • Heavy fabrication • PEB & EPC contractors
🔹 IS 4923 – YSt 355 (High-Strength Structural Steel)
Service Use:
Bridges • Towers • High-rise structures • Cranes • Dynamic load structures
Key Characteristics:
Highest strength grade in IS 4923 family; ideal for demanding engineered applications.
Size Range:
SHS: 50×50 to 300×300 mm
RHS: 60×40 to 400×200 mm
Industry Sectors:
Infrastructure • Power plants • Structural engineering
IS 4923 Hollow Sections – Size & Weight Chart (Indicative)
| Type | Size | Thickness | Approx. Weight (kg/m) |
|---|---|---|---|
| SHS | 25×25 | 1.6 mm | 1.58 |
| SHS | 50×50 | 2.5 mm | 4.80 |
| SHS | 100×100 | 4.0 mm | 11.80 |
| RHS | 40×20 | 1.6 mm | 1.85 |
| RHS | 80×40 | 3.2 mm | 6.40 |
| RHS | 150×100 | 4.0 mm | 13.20 |
📥 Full IS 4923 SHS/RHS weight chart available on request.
Indicative Price Range – IS 4923 Hollow Sections
| Grade | Type | Avg. Price (₹/kg) | Avg. Price ($/kg) | Usage |
|---|---|---|---|---|
| YSt 210 | SHS/RHS | ₹58 – ₹70 | $0.72 – $0.86 | Fabrication & light framing |
| YSt 240 | SHS/RHS | ₹62 – ₹75 | $0.77 – $0.92 | Structural sheds & PEB |
| YSt 310 | SHS/RHS | ₹65 – ₹82 | $0.80 – $1.05 | Heavy structural use |
| YSt 355 | SHS/RHS | ₹70 – ₹90 | $0.88 – $1.18 | Bridges & towers |
Pricing varies with size, thickness, finish (Bare/GI/HDG), and location.
HSN / HS Code Classification
HSN 7306 — Hollow structural sections of iron or non-alloy steel
Applicable globally for IS 4923 SHS & RHS.
IS 4923 hollow sections undergo stringent quality checks to ensure conformity with mechanical and dimensional requirements.
Testing Methods
Documentation Provided
Inox Steel India is a reliable and established supplier of IS 4923 Hollow Sections used across structural engineering, fabrication, and industrial construction. Our SHS and RHS sections are manufactured to strict IS 4923:2017 tolerances, ensuring consistent dimensions, straightness, and mechanical properties essential for load-bearing structures.
✔ Key Advantages of Choosing Our IS 4923 Hollow Sections
Our IS 4923 hollow sections deliver quality, consistency, and reliability for both light and heavy structural applications.
| Industry | Applications | Preferred Grades |
|---|---|---|
| Structural Engineering | Frames, columns, beams, walkways | YSt 240 / YSt 310 |
| Fabrication | Equipment frames, brackets, supports | YSt 210 |
| Construction | Sheds, PEB structures, trusses | YSt 240 / YSt 310 |
| Infrastructure | Bridges, pedestrian walkways, towers | YSt 355 |
| OEM Manufacturing | Machine frames, modular structures | YSt 210 / YSt 240 |
| Solar & EPC | Module mounting structures, supports | YSt 240 / HDG |
IS 4923 hollow sections are versatile and widely used across industries that require durability and structural integrity.
Export Readiness & Packaging
Inox Steel India supplies IS 4923 hollow sections to 35+ countries, supporting fabrication and structural projects in diverse environments.
Packaging Includes
Major Export Regions
UAE • Saudi Arabia • Qatar • Oman • Bahrain
South Africa • Kenya • Egypt • Mauritius
Malaysia • Singapore • Indonesia
UK • Germany • Italy • Spain • USA
Reliable logistics from key Indian ports: JNPT • Mundra • Hazira • Chennai.
YSt 210, YSt 240, YSt 310, and YSt 355. Yes, all YSt grades offer good weldability for structural and fabrication use. Yes — both pre-galvanized (GI) and hot-dip galvanized (HDG) options are available. SHS from 16×16 mm to 300×300 mm Yes, we export to the Middle East, Africa, Southeast Asia, Europe, and North America. Which grades are available under IS 4923?
Are IS 4923 hollow sections suitable for welding?
Do you provide galvanized IS 4923 sections?
What sizes are manufactured as per IS 4923?
RHS from 25×10 mm to 400×200 mm Do you export IS 4923 hollow sections?