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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.
1️⃣ Slit Coil Processing
Base steel coils (YSt 210 / S235 / S275 grades) are slit to exact width for forming SHS, RHS, or CHS profiles.
2️⃣ Roll Forming
The slit coil is gradually shaped into hollow sections with controlled corner radii and uniform thickness.
3️⃣ Welding
High-frequency induction welding (HFIW) creates a strong seam that is treated for coating adherence.
4️⃣ Pre-Galvanizing (GI) / Hot-Dip Galvanizing (HDG)
5️⃣ Passivation / Chromating
Improves surface corrosion resistance and prevents white rust.
6️⃣ Coating Thickness Testing
Zinc layer is verified using magnetic and microsection tests.
7️⃣ Cutting & End Finishing
Hollow sections are cut to standard/custom lengths and supplied with clean plain ends.
This sequence ensures durable, corrosion-resistant galvanized hollow sections that perform reliably in outdoor and moisture-rich environments.
Key Features & Advantages of Galvanized Hollow Sections
These properties make GHS a preferred choice for outdoor and exposed applications where durability is critical.
👉 Refer to the master datasheet above.
Key Selection Factors for Buyers
Global & Indian Market Demand Overview
India
High usage in solar structures, fencing, railings, agricultural frameworks, outdoor fabrication, and construction.
Major markets include: Gujarat • Maharashtra • Rajasthan • Telangana • Tamil Nadu.
Middle East (UAE, Saudi, Oman, Qatar)
Used extensively for outdoor steel fabrication, infrastructure, and solar EPC projects where high corrosion resistance is essential.
Africa (Kenya, South Africa, Nigeria)
Preferred for greenhouses, agricultural supports, safety barriers, and exterior structures due to durability.
Southeast Asia (Malaysia, Singapore, Indonesia)
Used for outdoor frames, walkway structures, public installations, and corrosion-prone industrial zones.
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
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
Galvanized Hollow Sections – Size & Weight Chart (Indicative)
| 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 |
📥 Complete GI / HDG weight chart available on request.
Indicative Price Range – Galvanized Hollow Sections
| Type | Coating | Avg. Price (₹/kg) | Avg. Price ($/kg) | Use |
|---|---|---|---|---|
| Pre-Galvanized SHS/RHS/CHS | 40–120 GSM | ₹65 – ₹80 | $0.85 – $1.05 | Light outdoor fabrication |
| Hot-Dip Galvanized SHS/RHS | 180–610 GSM | ₹75 – ₹110 | $0.98 – $1.40 | High-corrosion environments |
| HDG CHS (Poles, Supports) | 300–610 GSM | ₹80 – ₹125 | $1.05 – $1.55 | Coastal / Industrial |
Prices vary with coating GSM, size, thickness, zinc costs, and grade.
HSN / HS Code
HSN 7306 — Welded galvanized hollow steel sections
Applicable for SHS, RHS, CHS in GI and HDG form.
Testing & Quality Assurance
To ensure long-term outdoor performance, Galvanized Hollow Sections undergo the following tests:
Testing Methods
Documentation Provided
Why Choose Inox Steel India
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.
Export Readiness & Packaging
Inox Steel India exports GI and HDG Hollow Sections to more than 40+ countries, supporting large infrastructure, solar, fabrication, and industrial projects worldwide.
Standard Export Packaging
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.
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?