Hot-Dip Galvanizing · Fabrication · Hub, Pakistan
MS / GI Pipe & Tube
Round, square and rectangular pipes, tubes, poles and hollow sections — galvanized internally and externally, with venting and drainage racking designed for a uniform, fully protected coating.
Overview
Hollow sections are double trouble in corrosion terms: the outside is exposed to weather, and the inside can hold moisture that rusts from within. Our dipping process coats both surfaces — molten zinc floods the bore and drains out, leaving an internal protective layer that a brush or spray can never match.
We handle everything from small ½" conduits to large-diameter poles and structural hollow sections. Racking is designed per batch so every tube drains cleanly, no air locks form, and threaded ends and fittings are protected with galvanized fasteners.
Specifications & Sizes
- Round pipe ½" – 24" nominal; square/rectangular hollow sections in all standard sizes
- ERW or seamless, cut to length, ends chamfered or threaded
- Internal and external zinc coating in one dip
- Vent and drain holes positioned by our engineers
- Galvanized threaded fasteners and fittings
- Sections up to 27 ft in a single dip
Applications
- Fencing, gates and security barricades
- Handrails, balustrades and guard rails
- Street-light, utility and flag poles
- Structural hollow sections for frames and trusses
- Scaffolding and temporary works
Galvanizing Process Notes
Tubes trap air when dipped horizontally, so we rack them with a deliberate tilt and pre-drill vent holes at the high end. Zinc then floods the full bore, drains cleanly, and leaves a smooth internal coating with no blisters — the reason our tubular work holds up in coastal salt air.
Why Karachi Galvanizing?
- Fabrication + galvanizing under one roof — no bare welds, no third-party damage
- 27 ft kettle — long sections in a single dip
- Test records with every dispatch (magnetic-gauge thickness checks)
- 24–48 hr turnaround on standard galvanizing jobs
Pricing
Rates range from PKR 180–300 per kg depending on section size, surface condition and quantity. For orders above 20 tons, the minimum rate is PKR 180 per kg. Send your item list for an exact same-day quote.
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Need a Galvanizing Quote for MS / GI Pipe & Tube?
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