GI Structures Manufacturer in Kolkata & Howrah
IS 2062 structural steel fabrication with in-house hot-dip galvanizing — supplied from our Howrah works across Kolkata & Howrah and West Bengal.
Our home region. Kolkata–Howrah is the historic engineering heartland of eastern India, surrounded by steel, power, and heavy-fabrication clusters. As a Howrah-based manufacturer since 1972, IES offers the shortest lead times and on-site support here.
GI Structures & Fabricated Steel for Kolkata & Howrah's Industrial Sector
IES fabricates galvanized iron (GI) structures, cable tray support systems, switchyard lattice structures, substation frames, and custom industrial steelwork. Built from IS 2062 steel, hot-dip galvanized in-house to IS 2629 for decades of corrosion-free service.
Key Specifications
Custom fabrication to drawing · HDG 65–100 µm · Welds to IS 816 · Bolt holes to spec
Industrial Zones in Kolkata & Howrah We Serve
Eastern-region steel plants, the Haldia refinery complex, and Indian Railways workshops are long-standing specifiers of IES cable trays, earthing, and galvanized structures.
- Howrah Engineering Cluster
- Haldia Petrochemical & Refinery
- Durgapur–Asansol Steel Belt
- Kalyani Industrial Area
- Dankuni
Materials & Surface Treatments
- IS 2062 structural steel
- MS angle / channel / flat bar
- GI angle, channel, T-iron
Industries in Kolkata & Howrah Using GI Structures
Frequently Asked Questions
What standard governs GI structural fabrication in India?+
IS 2062 covers structural steel grades; IS 800 governs steel design. Fabricated GI structures are hot-dip galvanized per IS 2629, typically 65–85+ µm for outdoor environments.
What zinc coating thickness is specified for outdoor GI structures?+
IS 2629 specifies a minimum average zinc coating of 610 g/m² (~85 µm) for most outdoor applications. IES applies 65–100 µm depending on section thickness and end-use environment.