Confused between MS Pipe and GI Pipe for your industrial project? This detailed comparison covers strength, corrosion resistance, price, and best use cases for both types of pipes in Udhhyog applications.
Introduction: The MS vs GI Pipe Dilemma
When it comes to industrial pipeline selection, MS (Mild Steel) pipes and GI (Galvanized Iron) pipes are two widely used options. While they may look similar, their performance, coating, durability, and pricing differ significantly.
This guide helps industrial buyers decide which pipe fits their Udyog (industrial) application better in 2025.
What is MS Pipe?
MS (Mild Steel) pipes are made of low-carbon steel and are used in general applications that don’t require corrosion resistance.
Key Features
What is GI Pipe?
GI (Galvanized Iron) pipes are MS pipes coated with zinc to prevent rusting. This makes them suitable for outdoor and corrosive environments.
Key Features
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Zinc-coated for corrosion resistance
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Long life in water and outdoor environments
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Preferred for water lines, agriculture, and plumbing
MS Pipe vs GI Pipe – Detailed Comparison
| Parameter | MS Pipe | GI Pipe |
|---|
| Material | Mild Steel | Mild Steel + Zinc Coating |
| Corrosion Resistance | Low | High |
| Strength | High | Slightly lower (due to coating) |
| Weldability | Excellent | Difficult (zinc layer can burn) |
| Cost | ₹62–₹85 per kg | ₹80–₹110 per kg |
| Use Cases | Structural, Scaffolding, Fabrication | Water Supply, Outdoor Piping, Fencing |
| Lifespan (Unprotected) | Moderate (can rust) | Long (coating delays rust) |
| Maintenance | May need painting | Low maintenance |
Which One Is Better for Industrial Use?
Choose MS Pipe If:
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You're working on structural frameworks or indoor piping.
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You require strong weld joints or customized fabrication.
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Cost is a key factor, and rust is not a major concern.
Choose GI Pipe If:
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The pipeline will face moisture, outdoor conditions, or water.
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You need low-maintenance, rust-resistant installations.
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Application involves drinking water, agriculture, or plumbing.
Industrial Applications Breakdown
| Application | Preferred Pipe |
|---|
| Construction Scaffolding | MS Pipe |
| Water Distribution (Plumbing) | GI Pipe |
| Agricultural Irrigation | GI Pipe |
| Machine Frames, Structures | MS Pipe |
| Outdoor Fencing | GI Pipe |
| Firefighting & Sprinkler Lines | GI Pipe |
Cost Comparison in 2025 (India)
| Pipe Type | Average Price (per kg) | Coating Cost Included? |
|---|
| MS Pipe | ₹62 – ₹85 | No |
| GI Pipe | ₹80 – ₹110 | Yes (zinc galvanization) |
Conclusion: Which One Should You Use?
In 2025, MS Pipes remain a top choice for structural and fabrication purposes due to their cost-effectiveness and strength. However, for any industrial application exposed to water, moisture, or chemicals, GI Pipes offer superior corrosion resistance and lower maintenance, making them the ideal long-term solution.
✅ Final Verdict:
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For indoor or structural use ➜ Go with MS Pipe
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For outdoor, plumbing, or water-based use ➜ Choose GI Pipe
FAQs
Q1. Can I use MS pipes for water lines?
Ans: You can, but MS pipes may corrode over time. It’s better to use GI pipes for water transport.
Q2. Are GI pipes stronger than MS pipes?
Ans: MS pipes are slightly stronger structurally. GI pipes prioritize corrosion resistance over strength.
Q3. Can GI pipes be welded?
Ans: Yes, but welding requires removal of the zinc coating at the joints and adequate safety due to zinc fumes.
Q4. Are MS pipes cheaper than GI pipes?
Ans: Yes. MS pipes are more economical, making them suitable for budget-focused industrial projects.
Q5. Which pipe is better for agriculture?
Ans: GI pipes are better due to longer life, corrosion resistance, and suitability for water flow.
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