HDG Steel Structure
IS:2629 certified hot-dip galvanized fabrications for corrosion-critical infrastructure.
HDG Steel Structure — Overview
India Electricals Syndicate fabricates hot-dip galvanized steel structures at Howrah from IS:2062 certified steel, finished in a dedicated 12-metre galvanizing bath. Hot-dip galvanizing forms a metallurgically bonded zinc coating that protects steel from the inside of the section outward — the specified corrosion system for outdoor, coastal and process-plant structures where painted steel will not survive the design life.
Members are dipped to a minimum 85-micron zinc coating per IS:2629 and ASTM A123, with the long 12-metre bath allowing full-length structures to be galvanized in a single dip rather than progressively, eliminating overlap lines and weak joints. Fabrication, drilling and welding are completed and inspected before galvanizing so the coating is continuous over the finished assembly.
Each structure carries mill test certificates and galvanizing thickness records for tender and inspection. Send your fabrication drawings with a quote request and the Howrah works will return a fabricated-and-galvanized offer.
Technical Specifications
Applications
- Power transmission towers
- Substation structures
- Telecom towers
- Highway signage
- Coastal infrastructure
- Bridge drainage
Frequently Asked Questions
What zinc thickness is applied?+
Minimum 85 microns, metallurgically bonded, per IS:2629 and ASTM A123.
Why does the 12-metre bath matter?+
Full-length members are galvanized in a single dip, avoiding the overlap lines and weak points of progressive double-dipping.
Is the coating applied before or after fabrication?+
After — fabrication, drilling and welding are completed and inspected first so the zinc coating is continuous over the finished structure.
Where is it manufactured?+
At India Electricals Syndicate, Howrah, Kolkata — in continuous manufacture since 1972.