GI Pipe Price List (May 2026)

The bands below are indicative Galvanized Iron (GI) pipe prices for orders placed in May 2026, conforming to IS 1239 (Part 1):2004 with hot-dip galvanized finish. GI pipe is hot-dip galvanized MS ERW pipe. The zinc coating adds corrosion resistance and typically commands a 15-25% premium over equivalent black MS pipe, depending on current zinc prices and coating thickness.

We quote per kilogram (₹/kg), ex-warehouse Kanpur, exclusive of the legally applicable tax stated on the current quotation. The range moves with zinc cost, mill source, class, and order quantity. For a firm delivered-cost quotation, submit your BOQ through our RFQ form.

IS 1239 GI Pipe Price Table: Light, Medium & Heavy Class

Factors Affecting GI Pipe Pricing

The Right Buyers for GI Pipe in Kanpur

GI pipe is mild-steel tube protected by a hot-dip zinc coating, so you compare it with black MS where the project specification requires galvanising. Jal Jeevan Mission, PWD, plumbing, borewell, and fire-service orders can have different class, grade, coating, joining, and inspection requirements. Copy those requirements from the approved schedule. The zinc coating improves corrosion protection, but service life still depends on exposure, water chemistry, damage, fabrication, and maintenance.

GI is the wrong choice in two situations. Heavily welded structural work should start from black MS pipe when the drawing requires an uncoated substrate, because welding burns the zinc at every joint and leaves each weld zone uncoated. If the drawing or code requires an IBR boiler or steam-piping tube, do not substitute GI: zinc is a coating, not a strength upgrade, and wall and grade stay with the approved specification. For cost planning against this dated table, GI typically lands 15 to 25 percent above equivalent black MS of the same NB and class. Compare the two substrates at MS vs GI. For local supply see GI pipes in Kanpur and steel pipes in Kanpur, or borewell demand at borewell pipes in Kanpur.

GI Pipe RFQ Checklist: What Your PO Must State

A GI purchase order carries one extra line versus black MS: the zinc-coating callout. State the items below so the quotation can be checked against the material on the truck.

• NB with class: nominal bore plus Light, Medium, or Heavy under IS 1239 Part 1.
• Zinc coating mass: minimum average coating mass of 360 g per sq m under IS 4736 Amendments 3 and 4, with galvanising certification.
• Steel grade: YST 210, YST 240, or YST 310 for the underlying ERW substrate.
• Length and ends: the required length and end finish (plain, threaded, or socketed). A cut length is included only when the quotation names that work.
• Test papers: the required mill or inspection certificate, heat traceability, and the galvanising certificate.
• Inspection: whether a TPI agency will verify coating mass and dimensions at loading.
• Delivery basis: ex-warehouse Kanpur, tax as stated on the current quotation, freight to the named site if quoted.

Worked Example: GI Cost Per Length at 50 NB Medium

The steel substrate of a 50 NB Medium GI pipe is the corresponding black MS tube: 60.3 mm OD with a 3.60 mm wall. Using the site weight formula, (60.3 minus 3.60) times 3.60 times 0.02466 gives about 5.03 kg per metre, so 30.2 kg per 6 m is the theoretical black-steel mass before zinc is added. Do not use that substrate figure as a landed GI length cost: multiply the Rs 65 to Rs 73 per kg band by the supplier's actual coated weight, then add the legally applicable tax and freight stated on the current quotation.

Against the black MS band of Rs 53 to Rs 60 for the same size, the GI premium works out to about 22% per kg, squarely inside the 15 to 25 percent range quoted above. The coating certificate should show at least 360 g per sq m average mass under the current IS 4736 amendment position. Use the pipe weight calculator for the substrate estimate, then use the coated bundle weight on the supplier's packing list for the payable length cost.

Common Procurement Mistakes on GI Orders

• Assuming GI is stronger than MS. At equal wall and grade the two pipes have the same tensile, yield, and pressure ratings. Zinc fights corrosion, not load.
• Welding GI without the approved procedure. Follow the project welding and coating-repair procedure for zinc removal, ventilation, and restoring the bare zone. Do not invent a generic grind width.
• Skipping the coating callout. A PO that names only IS 1239 can arrive with thin or patchy galvanising. Always add the IS 4736 coating-mass line.
• Comparing GI and MS quotes per length. Compare per kg first, since wall class shifts weight. Then confirm the 15 to 25 percent premium band.
• Storing bundles in standing water. Fresh zinc stains in stagnant contact. Keep bundles off the ground, drained, and covered at site.

Standards and Compliance: IS 1239 Substrate, IS 4736 Coating

The table combines an IS 1239-1:2004 steel substrate with a separately stated galvanising requirement. IS 1239 covers dimensions from 15 to 150 mm NB in Light, Medium, and Heavy class, with the hydrostatic test in clause 13.1.1. IS 4736 covers hot-dip zinc coating on mild-steel tubes; Amendments 3 and 4 set the minimum average coating mass at 360 g per sq m for tubes of any thickness. Put both standards and the required inspection documents on the PO.

Larger water-main diameters can fall under IS 3589:2001 (168.3 to 2540 mm OD) where the approved design selects that standard. Fire-service work must follow the approved schedule, governing code, and authority requirements rather than a blanket Heavy-class rule. Read the substrate detail on our IS 1239 reference and the product range at GI pipes (product).

Buying GI Pipe in Kanpur for UP Water and Housing Work

If you are writing an RFQ from Panki, Dada Nagar, Jajmau, Coolie Bazar, or the Bartan Bazar market area, you should name the required delivery date, site PIN, access window, unloading arrangement, and approved make. Ask the quotation to identify the offered NB, class, brand, coating documents, and bundle count for that request, plus the dispatch estimate for that load.

Name the destination PIN on the RFQ if the load is intended for a site in Uttar Pradesh or a neighbouring state. Ask the formal offer to state whether that lane is offered, with freight amount, dispatch estimate, transit basis, unloading responsibility, and quote validity for that request. Mixed GI and MS bundles may share a vehicle only when the quotation confirms dimensions, handling, traceability, and capacity. Follow sourcing context on the Kanpur steel market page and destination detail at steel pipes in Lucknow.

Other Current Price Lists (May 2026)

GI Pipe Pricing: Frequently Asked Questions

Sources and References

• IS 1239-1:2004, Steel tubes, tubulars and other wrought steel fittings, Part 1 (BIS). Governs the substrate classes and dimensions.
• IS 4736, Hot-dip zinc coatings on mild steel tubes (BIS), Amendments 3 and 4. Sets the minimum average coating mass of 360 g per sq m cited above.
• NBC 2016, Part 4: Fire and Life Safety (BIS). Check the approved fire-system schedule and authority requirements before selecting pipe class or coating.
• IS 1239 standard reference and MS vs GI comparison on this site for substrate and coating detail.