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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.
This controlled process ensures strong, durable, and dimensionally accurate hollow sections suitable for structural engineering applications.
These characteristics make IS 4923 hollow sections the preferred choice for structural steel applications across multiple industries.
(For SHS & RHS manufactured as per IS 4923 standard)
| Parameter | IS 4923 (Structural Hollow Steel Sections) |
|---|---|
| Standard | IS 4923 (Indian Standard for Structural Hollow Steel Sections) |
| Product Types | Square Hollow Sections (SHS), Rectangular Hollow Sections (RHS) |
| Material Grades | YSt 210, YSt 240, YSt 310, YSt 355 |
| Manufacturing Process | ERW / HFIW (High-Frequency Induction Welding) |
| Section Type | Cold-Formed Hollow Sections |
| Weld Type | Electric Resistance Welded (ERW) |
| Surface Condition | Black (Bare), Pre-Galvanized (GI), Hot-Dip Galvanized (HDG) |
| Size Range (SHS) | 16×16 mm to 300×300 mm |
| Size Range (RHS) | 25×10 mm to 400×200 mm |
| Thickness Range | 1.0 mm to 12.5 mm |
| Length Range | 6–12 meters (custom lengths available) |
| Tolerance | As per IS 4923:2017 (dimensions, squareness, mass, thickness) |
| Minimum Yield Strength | 210 / 240 / 310 / 355 MPa (grade-dependent) |
| Applications | Structural fabrication, frames, towers, walkways, trusses |
| Corrosion Protection | Bare / GI (40–120 GSM) / HDG (180–610 GSM) |
| Mechanical Tests | Tensile test, Yield strength test, Elongation, Bend test |
| Non-Destructive Tests | Eddy Current Test, Weld Seam UT (on request) |
| End Condition | Plain Ends, Deburred Ends |
| Equivalent Standards | EN 10219 (S235 / S275 / S355) • ASTM A500 (Grade A / B / C) |
| Weldability | Excellent |
| Formability | Good |
| Coating Compatibility | GI, HDG, Epoxy paint, PU coatings |
Choosing the correct IS 4923 section involves matching the yield strength to the structural load.
Grade Selection:
Required YSt grade based on load requirements
Section Geometry:
Section type SHS or RHS
Structural Rigidty:
Thickness based on structural design
Coating Requirement:
Bare / GI / HDG
Dimensional Precision:
Tolerances as per IS 4923:2017
Logistics:
Length requirements (6m / 12m / custom)
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
| 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 |
| Grade | Type | Avg. Price (Rs./kg) | Avg. Price ($/kg) | Usage |
|---|---|---|---|---|
| YSt 210 | SHS/RHS | Rs. 58 – Rs. 70 | $0.72 – $0.86 | Fabrication & light framing |
| YSt 240 | SHS/RHS | Rs. 62 – Rs. 75 | $0.77 – $0.92 | Structural sheds & PEB |
| YSt 310 | SHS/RHS | Rs. 65 – Rs. 82 | $0.80 – $1.05 | Heavy structural use |
| YSt 355 | SHS/RHS | Rs. 70 – Rs. 90 | $0.88 – $1.18 | Bridges & towers |
Pricing varies with size, thickness, finish (Bare/GI/HDG), and location.
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.
Inox Steel India supplies IS 4923 hollow sections to 35+ countries, supporting fabrication and structural projects in diverse environments.
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.
Our technical team assists with grade selection (YSt 210 / 240 / 310 / 355), section dimensions, thickness optimization, and project-based requirements for PEB structures, fabrication shops, and EPC contractors.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
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Inox Steel India
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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?
Inox Steel India manufactures IS 4923 Square & Rectangular Hollow Sections (SHS/RHS) in YSt 210, 240, 310 & 355 grades for structural and fabrication applications. Available in Bare, GI & HDG finishes with global export support.