Galvanized Iron (GI) Pipes in Pakistan

Galvanized iron pipe is steel pipe protected by a hot-dip zinc coating that shields the base metal from rust and moisture. It remains the most widely used pipe for water supply, plumbing, fire-fighting and irrigation work in Pakistan — durable, easy to install and economical over a long service life.

A. Karimjee & Sons supplies GI pipes from 1/2″ to 8″ to ASTM A53, ASTM A795 and BS EN 10255, in plain end or threaded and coupled configurations.

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Galvanized Iron (GI) Pipe Specifications

Download datasheet
Galvanized iron GI pipe specifications
MaterialGalvanized Steel (hot-dip zinc coated)
StandardsASTM A53, ASTM A795, BS EN 10255
Size range1/2″ to 8″
FinishHot-dip galvanized
End typesPlain end, Threaded & Coupled

Standards We Supply

Galvanized Iron Pipe Standards

Hot-dip galvanized
ASTM A53
General-purpose galvanized steel pipe for water, air, steam and gas lines — the widely specified standard for plumbing and utility service.
ASTM A795
Pipe specifically intended for fire protection systems, used in sprinkler and hydrant installations.
BS EN 10255
European standard for threadable steel tubes, covering plain end and threaded & coupled water and gas pipe.

Key Features

  • Zinc coating gives strong, long-lasting rust resistance
  • Extended service life with low maintenance
  • High mechanical strength for pressurised water and gas lines
  • Suitable for indoor, outdoor and buried installations
  • Threaded and coupled ends allow fast installation without welding
  • Cost-effective across the life of the system

Need this size in stock? Tell us the grade, schedule and quantity — we'll confirm availability.

Karachi · Supplying Pakistan

Why buy your pipes from A. Karimjee & Sons

Ready stock in Karachi
Reduced lead times on common sizes and grades, held at our warehouse.
Documented quality
Mill test certificates to EN 10204 3.1 supplied on request, with full heat traceability.
Full standards coverage
ASTM, API, ASME and BS EN specifications across carbon steel, stainless and GI.
One-stop supply
Pipes plus matching valves, flanges, fittings and gaskets from one supplier.
Technical support
Help selecting grade, schedule and end preparation for your service conditions.
Nationwide delivery
Karachi, Lahore, Islamabad, Faisalabad, Multan, Hyderabad, Quetta and project sites.

Industries We Serve

Petrochemicals

Providing robust solutions for petrochemical processing and safety.

Refineries

Supplying essential components for efficient refinery operations.

Fertilizers

Delivering quality products for fertilizer production facilities.

Pharmaceuticals

Ensuring precision and reliability in pharmaceutical manufacturing.

Manufacturing

Supporting diverse manufacturing needs with versatile products.

Heavy Engineering

Catering to the demands of heavy engineering projects.

Ship Building

Supplying durable materials for shipbuilding and repair.

Power Plant

Providing critical components for power generation and distribution.

Our Trusted Partners

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