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Inox Steel India is a leading manufacturer and global supplier of Galvanized Hollow Sections (GHS) designed for long-term outdoor performance, protection against corrosion, and structural durability in harsh environments. Available in Square (SHS), Rectangular (RHS), and Circular (CHS) forms, these sections are manufactured as per IS 4923, IS 1161, EN 10219, and ASTM A653 standards.
Galvanized Hollow Sections are widely used in outdoor fabrication, fencing, gates, solar structures, agricultural frameworks, walkways, greenhouses, and infrastructure due to their strong resistance to moisture, humidity, chemicals, and atmospheric corrosion. The zinc coating (GI) or hot-dip galvanized layer (HDG) acts as an effective barrier, offering superior protection compared to uncoated mild steel sections.
Inox Steel India supplies GHS in a wide dimensional range from 12×12 mm to 300×300 mm (SHS), 20×10 mm to 400×200 mm (RHS), and 15 mm to 355 mm OD (CHS) with coating thickness options of 40–120 GSM (GI) and 180–610 GSM (HDG). Our galvanized sections are preferred for outdoor installations, road and highway safety systems, solar EPC projects, and industrial fabrication across India, the Middle East, Africa, and Southeast Asia.
With strong anti-corrosion properties, consistent dimensional accuracy, and reliable weldability, Inox Steel India’s Galvanized Hollow Sections ensure long service life in environments where uncoated steel would rapidly deteriorate.
Galvanized Hollow Sections follow a precise coating and forming sequence to achieve uniform corrosion protection and consistent mechanical strength.
This sequence ensures durable, corrosion-resistant galvanized hollow sections that perform reliably in outdoor and moisture-rich environments.
These properties make GHS a preferred choice for outdoor and exposed applications where durability is critical.
(For Outdoor / Corrosion-Prone Environments)
| Parameter | GI SHS (Square Galvanized Hollow Sections) | GI RHS (Rectangular Galvanized Hollow Sections) | GI CHS (Circular Galvanized Hollow Sections) |
|---|---|---|---|
| Applicable Standards | IS 4923, IS 1161, EN 10219, ASTM A653 (pre-galvanized) | IS 4923, EN 10219 | IS 1161, IS 3601, EN 10219 |
| Material | Carbon Steel / Mild Steel with Zinc Coating | Carbon Steel / Mild Steel with Zinc Coating | Carbon Steel / Mild Steel with Zinc Coating |
| Type of Galvanizing | Pre-Galvanized (GI) / Hot-Dip Galvanized (HDG) | Pre-Galvanized (GI) / Hot-Dip Galvanized (HDG) | Pre-Galvanized / Hot-Dip Galvanized |
| Coating Thickness | 40–120 GSM (GI), 180–610 GSM (HDG) | 40–120 GSM (GI), 180–610 GSM (HDG) | 40–120 GSM (GI), 180–610 GSM (HDG) |
| Service Use | Outdoor structures, fencing, gates, solar supports, exposed environments | Outdoor framing, structural protection | Poles, pipes, scaffolding, outdoor fabrication |
| Corrosion Resistance | High (GI), Very High (HDG) | High / Very High | High / Very High |
| Weldability | Very Good | Very Good | Very Good |
| Size Range | 12×12 – 300×300 mm | 20×10 – 400×200 mm | 15 mm OD – 355 mm OD |
| Thickness Range | 0.8 – 8.0 mm | 0.8 – 8.0 mm | 0.8 – 8.0 mm |
| Mechanical Strength | Based on base steel grade (YSt 210 / YSt 240 / S235 / S275) | Same | Same |
| End Condition | Plain Ends | Plain Ends | Plain Ends |
| Finish Type | Spangled GI / Smooth GI / Passivated | Same | Same |
| Testing Methods | Coating thickness test, salt spray, drift, flattening | Same | Same |
| Applications | Fencing, gates, solar structures, greenhouses, walkways | Outdoor frames, fabrication | Scaffolding, outdoor piping, temporary structures |
| Equivalent Standards | ASTM A500 (structural), ASTM A653 (coated) | EN 10219 | EN 10219 |
Choosing the correct galvanized section depends on the project’s environment and lifespan requirements.
Type of galvanizing:
Pre-GI vs Hot-Dip Galvanized (HDG)
Coating thickness (GSM):
40–120 GSM (GI), 180–610 GSM (HDG)
Shape requirement:
SHS / RHS / CHS
Section size & wall thickness:
based on structural load
Environmental exposure:
Coastal, industrial, agricultural, high-humidity areas
Compliance:
IS 4923 / IS 1161 for India, EN 10219 for export
Galvanized Hollow Sections (GHS) are designed for outdoor, moisture-rich, and corrosion-prone environments where uncoated steel cannot perform long-term. The zinc coating protects the steel substrate by forming a durable barrier against rust, extending the life of structures used in infrastructure, solar EPC, agriculture, and fabrication.
Below is the structured application breakdown following the sample format.
🔹 Pre-Galvanized Hollow Sections (GI) – 40–120 GSM Coating
Service Use:
Fencing, gates, furniture frames, walkways, indoor–outdoor partitions, greenhouses.
Key Characteristics:
Light zinc coating, smooth spangled finish, economical for moderate outdoor environments.
Size Range:
12×12 – 200×200 mm (SHS), 20×10 – 200×100 mm (RHS), 15–150 mm OD (CHS)
Grades Used:
YSt 210 / YSt 240 / S235
Industry Sectors:
Fabrication • Agriculture • Residential • Light commercial
🔹 Hot-Dip Galvanized Hollow Sections (HDG) – 180–610 GSM Coating
Service Use:
Solar MMS structures • Industrial outdoor framing • Coastal environment structures • Safety barriers • Heavy-duty gates • Outdoor supports
Key Characteristics:
Thick zinc layer for superior corrosion resistance and longer outdoor service life.
Size Range:
20×20 – 300×300 mm (SHS), 40×20 – 400×200 mm (RHS), 25–355 mm OD (CHS)
Grades Used:
YSt 310 / S235 / S275
Industry Sectors:
Solar EPC • Infrastructure • Roads & Highways • Industrial PEB • Oil & Gas Outdoors
🔹 Structural GI/HDG Hollow Sections for Engineering Applications
Service Use:
Pipe racks • Fabrication frames • Light structural components • Platforms • Storage systems
Key Characteristics:
Uniform thickness, high weldability, consistent straightness for fabrication.
Grades Used:
YSt 240 / YSt 310 / S275
Industry Sectors:
Engineering • OEM • Fabrication • Civil construction
| Type | Size | Thickness | Approx. Weight (kg/m) |
|---|---|---|---|
| SHS | 25×25 | 1.2 mm | 1.15 |
| SHS | 50×50 | 2.0 mm | 2.90 |
| SHS | 100×100 | 3.2 mm | 7.60 |
| RHS | 40×20 | 1.6 mm | 1.80 |
| RHS | 80×40 | 2.5 mm | 4.10 |
| RHS | 150×100 | 3.6 mm | 10.40 |
| CHS | 25 OD | 1.2 mm | 0.90 |
| CHS | 50 OD | 2.0 mm | 2.50 |
| CHS | 114.3 OD | 3.6 mm | 9.80 |
| Type | Coating | Avg. Price (Rs./kg) | Avg. Price ($/kg) | Use |
|---|---|---|---|---|
| Pre-Galvanized SHS/RHS/CHS | 40–120 GSM | Rs. 65 – Rs. 80 | $0.85 – $1.05 | Light outdoor fabrication |
| Hot-Dip Galvanized SHS/RHS | 180–610 GSM | Rs. 75 – Rs. 110 | $0.98 – $1.40 | High-corrosion environments |
| HDG CHS (Poles, Supports) | 300–610 GSM | Rs. 80 – Rs. 125 | $1.05 – $1.55 | Coastal / Industrial |
Prices vary with coating GSM, size, thickness, zinc costs, and grade.
To ensure long-term outdoor performance, Galvanized Hollow Sections undergo the following tests:
Testing Methods:
Documentation Provided
Inox Steel India is a trusted manufacturer and global supplier of Galvanized Hollow Sections (SHS, RHS, CHS) engineered for outdoor, moisture-rich, and corrosion-prone environments. Our galvanized sections ensure superior durability, long service life, and reliable structural performance for fabrication, infrastructure, and solar EPC applications.
✔ Why Customers Prefer Our Galvanized Hollow Sections
Our goal is to supply long-lasting galvanized products that withstand outdoor environments with minimal maintenance.
| Industry | Applications | Preferred Coating |
|---|---|---|
| Solar Energy | MMS structures, module supports | HDG 275–610 GSM |
| Agriculture | Greenhouses, fencing, irrigation frames | GI / HDG |
| Construction | Gates, walkways, outdoor fabrication | GI / HDG |
| Infrastructure | Road barriers, guard rails, outdoor framing | HDG |
| Industrial Fabrication | Machine guards, fabrication supports | GI |
| OEM Manufacturing | Frames, brackets, custom fabrication | GI / HDG |
Galvanized Hollow Sections ensure stability and rust-free performance in all weather conditions.
Inox Steel India exports GI and HDG Hollow Sections to more than 40+ countries, supporting large infrastructure, solar, fabrication, and industrial projects worldwide.
Major Export Markets:
UAE • Saudi Arabia • Qatar • Oman • Kuwait • Bahrain
Kenya • South Africa • Nigeria • Tanzania • Egypt
Malaysia • Singapore • Indonesia
Europe • UK • USA • Canada
Reliable logistics ensure fast movement from JNPT, Mundra, Hazira & Nhava Sheva ports.
We offer complete support in selecting the right coating thickness, grade, and section size for outdoor and industrial applications.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
+91 9930796690
Inox Steel India
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Hot-Dip Galvanized (HDG) sections with 275–610 GSM. Yes, zinc coating burns off locally during welding; proper ventilation is recommended. 12×12 mm to 300×300 mm (SHS), 20×10 mm to 400×200 mm (RHS), 15–355 mm OD (CHS). Yes, to Middle East, Africa, Southeast Asia, Europe, and North America. Yes, from 40 GSM (GI) up to 610 GSM (HDG). Which coating is best for coastal or high-corrosion areas?
Are galvanized hollow sections suitable for welding?
What sizes are available?
Do you export galvanized hollow sections?
Can coating thickness be customized?
Inox Steel India supplies GI & Hot-Dip Galvanized Hollow Sections (Square, Rectangular, Circular) for outdoor, corrosion-prone, and structural applications. Available in 40–610 GSM coatings with global delivery.