+91 98361 05950 info@indoeast.com NH-6, Jangalpur, Howrah – 711411, West Bengal, India

Hot Dip Galvanizing in Howrah & Kolkata

Our own kettle, on our own site — 7.0 m × 1.2 m × 1.6 m at 450–460 °C, coated to IS 2629 / ASTM A123 at 75–85 microns. Job work accepted alongside our own fabrication.

Where can I get hot dip galvanizing done in Howrah or Kolkata?

Indo East Corporation Pvt. Ltd. runs its own hot-dip galvanizing plant at Jalan Industrial Complex, Jangalpur, on NH-6 in Howrah — about 22 km from Kolkata Port. The kettle is 7.0 m × 1.2 m × 1.6 m, operating at 450–460 °C, coating to IS 2629 / IS 4759 / ASTM A123 at a minimum of 75–85 microns, checked on every batch with a calibrated DFT gauge. We galvanize the structures we fabricate ourselves — and we accept job-work galvanizing from other fabricators, OEMs and project contractors. Enquiries: +91 98361 05950 · info@indoeast.com.

Indo East Corporation works at Jangalpur, Howrah — steel fabrication and in-house hot dip galvanizing plant
In-House Galvanizing Plant

Galvanizing Plant & Job Work Capacity

Most fabricators in and around Howrah send their steel out to be galvanized. We do not. The kettle sits on the same site as the cutting, drilling and welding shops, which means the fabrication tolerance and the zinc coating are answerable to the same people and the same drawing — and material does not spend days on a truck between two vendors.

That same line is available as job work. If you fabricate structures and need them galvanized to IS 2629 or ASTM A123 with a coating report you can hand to an inspector, send us the item list and we will quote against it.

ParameterSpecification
Kettle Size7.0 m (L) × 1.2 m (W) × 1.6 m (D)
Operating Temperature450–460 °C molten zinc
Coating StandardIS 2629 · IS 4759 · ASTM A123
Coating ThicknessMinimum 75–85 microns (DFT gauge verified)
Max Length, Single DipUp to approx. 7 metres in one immersion
Max Single Piece Weight5 tonnes
Annual Capacity18,000+ MT (fabrication & galvanizing)
Base SteelIS 2062 Grade A / Grade B structural steel
Pre-Treatment8-stage — degrease, rinse, pickle, rinse, flux, dry, dip, quench
InspectionDFT coating thickness, adherence test, visual; TPI supported
LocationJangalpur, NH-6, Howrah 711411, West Bengal — 22 km from Kolkata Port
CertificationsISO 9001:2015 · ISO 14001:2015 · ISO 45001:2018 · NSIC
Job Work Galvanizing Structural Steel Towers & Poles Railway Structures Solar Mounting Structures Export Consignments

How Galvanizing Job Work Works

You fabricate. We galvanize, test and document. Material is received at our Jangalpur works and returned with a coating report.

1. Send the item list

Sizes, steel grade, piece weights, quantity — or the drawing. Email info@indoeast.com.

2. Get a written rate

Quoted per tonne against your list, with the turnaround confirmed in writing rather than promised in general terms.

3. Deliver to Jangalpur

Material is received on NH-6, Howrah — directly on the highway, 22 km from Kolkata Port.

4. 8-stage pre-treatment

Degrease, rinse, pickle, rinse, flux, dry — the stage most coating failures actually trace back to.

5. Dip, quench, measure

Immersion at 450–460 °C, then DFT coating-thickness readings, adherence test and visual check for bare spots, lumps and drips.

6. Report & despatch

A galvanizing report goes back with the material. Third-party inspection (BVQI, SGS, Bureau Veritas, DNV, TUV or your own agency) is welcome on site.

We quote job work against a drawing or a weighed item list. We do not publish a per-kg rate on this page, because the rate depends on section thickness, piece size and batch quantity — and a number quoted without those is a number that changes later.

Send Your Item List

What Goes Into the Kettle

Telecom Towers & Monopoles

Lattice sections, guyed masts, rooftop structures and monopole shafts. See telecom towers

Substation & Transmission

Gantries, equipment supports, transmission line towers and distribution poles. See power structures

Railway OHE & Sleepers

OHE masts, portals, brackets and steel channel sleepers — RDSO approved. See railway structures

Solar Mounting Structures

Module tables, purlins and tracker-compatible supports. See solar MMS

Heavy & Structural Fabrication

Flyover girders, industrial structures, H-beam poles and drawing-based custom work. See fabrication

Third-Party Job Work

Fabricated steel from other workshops, galvanized to standard and returned with a coating report.

Galvanizing for Kolkata & Eastern India

The works is on NH-6 at Jangalpur, Howrah — on the highway itself, about 22 km from Kolkata Port and within a short run of the Howrah and Kolkata industrial belt. Material comes in from fabricators and project sites across West Bengal and eastern India, and galvanized consignments have gone out as far as export packing for overseas projects.

Howrah Kolkata Jangalpur · NH-6 Dankuni & Bagnan belt West Bengal Eastern India Export consignments

Frequently Asked Questions

Does Indo East do hot dip galvanizing in-house or sub-contract it?

In-house. Indo East operates its own hot-dip galvanizing plant at its Jangalpur works in Howrah, on the same site as its fabrication shop. Galvanizing is not sub-contracted, so fabrication tolerance and zinc coating are controlled by one company against one drawing.

What is the size of Indo East's galvanizing kettle?

The kettle measures 7.0 metres long x 1.2 metres wide x 1.6 metres deep and operates at 450-460 degrees Celsius. Structural members of up to about 7 metres are galvanized in a single immersion.

Do you accept hot dip galvanizing job work from other companies?

Yes. Indo East accepts galvanizing job work from fabricators, OEMs and project contractors in addition to galvanizing its own structures. Material is received at the Jangalpur works, galvanized to IS 2629 / ASTM A123 and returned with a galvanizing report recording coating thickness.

What zinc coating thickness does Indo East achieve?

A minimum of 75-85 microns, in line with IS 2629. Coating thickness is measured on every batch with calibrated dry film thickness (DFT) gauges and recorded in the galvanizing report.

Which galvanizing standards do you work to?

IS 2629 (hot-dip galvanizing of iron and steel), IS 4759 (zinc coating on structural steel) and ASTM A123 for international and export orders.

What is the pre-treatment process before galvanizing?

An eight-stage sequence: alkaline degreasing, water rinse, hydrochloric acid pickling, second water rinse, zinc ammonium chloride fluxing, drying, immersion in molten zinc at 450 degrees Celsius, then quenching and cooling.

What is the heaviest and largest piece you can handle?

The works handles single fabricated pieces of up to 5 tonnes, and annual throughput is over 18,000 MT. Members up to about 7 metres are galvanized in one dip.

Where is the galvanizing plant located?

Jalan Industrial Complex, Gate No. 1, Right Lane No. 6, Jangalpur, NH-6, Howrah 711411, West Bengal, India - directly on NH-6 and about 22 km from Kolkata Port.

What quality records are provided with galvanized material?

A galvanizing report with DFT coating-thickness readings, adherence test result and visual inspection for bare spots, lumps and drips. Third-party inspection by agencies such as BVQI, SGS, Bureau Veritas, DNV and TUV is supported, as is customer-nominated TPI.

How is galvanizing job work quoted?

Against an item list or drawing showing sizes, steel grade, piece weights and quantity. Send the list to info@indoeast.com or call +91 98361 05950 and a quotation is issued on a per-tonne basis.

What is the turnaround time for job work galvanizing?

Turnaround is confirmed at the time of order and depends on batch size and the current load on the line. It is quoted in writing with the rate rather than promised in general terms.

How long does hot dip galvanized steel last?

A hot-dip galvanized structure in an outdoor environment can last 25-75 years with zero maintenance. The zinc coating is metallurgically bonded to the steel, which is why it outperforms paint or spray coatings on adhesion and durability.

What kinds of steel does Indo East galvanize?

Telecom towers and monopoles, substation and transmission structures, railway OHE masts and steel channel sleepers, solar module mounting structures, and general heavy and light structural fabrication in IS 2062 steel.

Is Indo East certified?

Yes - ISO 9001:2015 for quality management, ISO 14001:2015 for environmental management and ISO 45001:2018 for occupational health and safety. The company is also NSIC registered and an IEC registered exporter.

Other Product Lines

Telecom Towers Power Structures Railway Structures Solar Mounting Structures Structural Fabrication

Need steel galvanized in Howrah?

Send your item list or drawing. A director replies within 48 business hours.