How to Use a Puddle Flange in RCC Slab Construction – Step-by-Step Guide

  A puddle flange is a simple yet essential fitting used in civil construction to prevent water leakage where pipes pass through concrete structures. In RCC (Reinforced Cement Concrete) slabs, these flanges act as a seal that stops water from migrating along the outer surface of a pipe. Whether you are working on water tanks, basements, lift pits, or underground pipelines, installing a puddle flange correctly ensures waterproofing and structural durability. This step-by-step guide from Udhhyog , a leading supplier of GI, MS, and SS puddle flanges in India, explains how to use a puddle flange during RCC slab construction. ๐Ÿงฐ Step-by-Step Guide ✅ Step 1: Choose the Right Puddle Flange Select a puddle flange based on the pipe size and material (MS, GI, or SS). GI puddle flanges are ideal for general drainage and water pipes. Use stainless steel for corrosive environments or coastal zones. At Udhhyog , we provide puddle flanges in custom sizes with...

Low-Cost GI Pipes in India – Compare ½, 40mm, 50mm Prices

 

Introduction

GI pipes (Galvanized Iron pipes) are among the most used materials in plumbing and construction. In India, where both budget and performance matter, low-cost GI pipes are in high demand—especially in standard sizes like ½ inch, 40mm, and 50mm.

This guide helps you compare the latest 2025 price ranges, sizes, weights, and reliable dealers to buy GI pipes at the most competitive rates.


๐Ÿ“Œ What are GI Pipes?

GI pipes are mild steel pipes coated with a layer of zinc to prevent rust and corrosion. They are widely used in:

  • Water supply systems

  • Irrigation projects

  • Industrial and residential plumbing

  • Structural and fencing applications

GI pipes are durable, easy to install, and more cost-effective than stainless steel alternatives.


๐Ÿ“ Common Sizes: ½", 40mm & 50mm

InchMM EquivalentUse Case
½"15mmIndoor plumbing, taps, short lines
1½"40mmMain water supply, small buildings
2"50mmCommercial plumbing, irrigation

These sizes are ideal for most domestic and industrial applications due to their wide availability and compatibility with standard fittings.


๐Ÿ’ฐ GI Pipe Price Comparison – 2025

๐Ÿ”น ½ Inch GI Pipe Price (15mm)

ClassPrice/MetreWeight (kg/m)Remarks
A Class₹85 – ₹1001.3 – 1.5 kgLight-duty
B Class₹90 – ₹1151.5 – 1.65 kgResidential plumbing
C Class₹110 – ₹1301.7 – 1.85 kgBetter pressure hold

๐Ÿ”น 40mm GI Pipe Price (1½ Inch)

ClassPrice/MetreWeight (kg/m)Remarks
A Class₹170 – ₹1953.0 – 3.4 kgLight usage
B Class₹190 – ₹2203.6 – 3.8 kgIdeal for main supply
C Class₹230 – ₹2604.0 – 4.5 kgHeavy-duty pressure line

๐Ÿ”น 50mm GI Pipe Price (2 Inch)

ClassPrice/MetreWeight (kg/m)Remarks
A Class₹220 – ₹2503.8 – 4.2 kgModerate flow use
B Class₹240 – ₹2804.4 – 4.8 kgHigh-flow plumbing
C Class₹290 – ₹3305.0 – 5.5 kgIndustrial use

๐Ÿท️ GI Pipe Price Per Kg (2025)

SizeAvg. Weight/mRate/Kg (Approx)Est. Price/Metre
½ inch1.5 kg₹75 – ₹80₹110 – ₹120
40mm3.6 kg₹75 – ₹78₹270 – ₹285
50mm4.5 kg₹75 – ₹78₹330 – ₹350

๐Ÿข Top Brands Offering Low-Cost GI Pipes

BrandStrength
Tata PipesPremium quality, consistent coating
Jindal PipesGreat value for residential projects
SwastikAffordable and durable for rural projects
ApolloEconomical, suitable for general use
ZenithIndustrial-grade heavy-duty GI pipes

๐Ÿ›’ Where to Buy Low-Cost GI Pipes?

You can find affordable GI pipes from:

✅ Local Hardware Shops

Check for ISI certification and per-meter pricing in your city.

✅ Wholesalers & Stockists

Ideal for bulk buyers looking for 100+ meter deals.

Udhhyog – Verified GI Pipe Dealers Platform

Udhhyog helps you connect with low-cost GI pipe dealers for:

  • Bulk or retail orders

  • Delivery across India

  • Certified Tata/Jindal/Swastik GI pipes

  • Sizes from ½ inch to 4 inches and more

๐Ÿ“ž Visit Udhhyog.in to get instant quotes from multiple verified suppliers.


๐Ÿ“ City-Wise Low Price Comparison

City½ inch (B Class)40mm (B Class)50mm (B Class)
Delhi₹105/m₹205/m₹260/m
Mumbai₹110/m₹215/m₹275/m
Ahmedabad₹100/m₹195/m₹250/m
Hyderabad₹108/m₹210/m₹265/m

๐Ÿง  Tips for Buying Low-Cost GI Pipes

  1. Verify Pipe Class: Ensure it's not mislabeled (B as A).

  2. Check Zinc Coating: Ask for ISI and mill test reports.

  3. Buy in Bulk: Rates drop by 5–10% for 100+ meters.

  4. Choose Local Dealers or Udhhyog: To save on delivery and GST billing hassles.

  5. Compare by Kg and Metre: Understand what pricing format works better for your project.


๐Ÿงฐ Applications by Size

SizeRecommended Use
½ inchTap lines, domestic plumbing
40mmBorewells, main water supply
50mmIndustrial pipelines, drainage

❓ FAQs

✅ What is the cheapest GI pipe for home plumbing?

The ½ inch B Class pipe is the most economical option, costing ₹90–₹115 per meter.

✅ How to get the best price for 40mm or 50mm GI pipes?

Buy from verified stockists through platforms like Udhhyog and opt for bulk purchase to reduce per-meter rates.

✅ Can I trust local brands?

Yes, but always check for ISI certification and request a zinc coating test report before purchasing.


๐Ÿ Conclusion

If you're looking for low-cost GI pipes in India, start by comparing the most-used sizes—½ inch, 40mm, and 50mm. Prices vary based on class, brand, and region, but with the right sourcing strategy, you can get high-quality pipes at competitive rates. Always prioritize certified brands, compare per kg vs per meter costs, and choose reliable suppliers like Udhhyog to avoid hidden costs and quality issues.

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