Difference Between MS Seamless Pipes and ERW Pipes Explained

Choosing between MS Seamless Pipes and ERW Pipes is crucial in udhhyog (industrial) applications. Both are Mild Steel (MS) pipes but differ significantly in manufacturing, cost, strength, and application. This guide explains everything industrial buyers need in 2025 to make the right decision.

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Quick Answer (40-60 words)

MS Seamless pipes are made without welding, offering high strength and pressure resistance, ideal for heavy-duty and critical systems. ERW pipes, created through electric resistance welding, are more economical and perfect for low-pressure industrial and structural uses. Choose based on your project’s pressure, cost, and quality needs.

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1. What Are MS Seamless Pipes?

MS Seamless Pipes are manufactured using a hot extrusion process without any welds. These pipes are known for their:

• High-pressure performance
• Corrosion resistance
• Dimensional accuracy
• Superior strength

Common uses in udhhyog:

• Oil & gas pipelines
• Hydraulic systems
• Boiler & power plant applications

Seamless Pipe Manufacturing Process:

1. Billet heating to high temperature
2. Piercing to create hollow shell
3. Rolling to required diameter
4. Cooling and straightening
5. Inspection and testing

This process results in a pipe with no seams, making it ideal for critical applications.

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What Are MS ERW Pipes?

ERW (Electric Resistance Welded) pipes are made by welding rolled steel sheets longitudinally. They are widely used for:

• Structural piping
• Water supply lines
• Low-pressure fluid transport

ERW Pipe Benefits:

• Cost-effective
• Easily available
• Light in weight
• Ideal for fabrication

ERW Pipe Manufacturing Steps:

1. Cold-forming of steel strip
2. Passing through forming rollers
3. High-frequency welding of edges
4. Sizing and cutting
5. Surface finishing and testing

ERW pipes are more versatile for general industrial and construction purposes.

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3. Comparison Table: Seamless vs ERW Pipes

Feature	MS Seamless Pipe	MS ERW Pipe
Manufacturing Method	No welding (extruded)	Longitudinal welding (ERW)
Strength	High	Moderate
Pressure Resistance	Excellent	Suitable for low to medium pressure
Cost	Higher	Economical
Surface Finish	Smooth, uniform	Can show weld line
Ideal Application	Oil, gas, boilers, heavy-duty work	Water, fencing, scaffolding

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4. Which One Is Right for Your Udhhyog Project?

Choose MS Seamless Pipes if:

• You're handling high pressure or high-temperature fluids
• Durability is critical
• Safety regulations are strict
• Used in refineries or critical process industries

Choose ERW Pipes if:

• You need economical options
• Project involves light-duty or non-critical flow
• Fabrication or structural use
• Quick delivery and availability matter

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5. Pricing Overview (2025)

Pipe Type	Size (Inches)	Price Range (INR per meter)
MS Seamless	2" to 12"	₹140 – ₹600
MS ERW	1" to 12"	₹80 – ₹250

Note: Prices may vary by supplier, location, coating, and order volume.

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6. Top Suppliers of MS Pipes in India (2025)

1. Jindal Pipes Ltd. – Pan-India delivery, certified quality
2. Tata Steel Pipes – ERW & seamless pipe solutions
3. APL Apollo Tubes – Trusted brand for ERW pipes
4. Steel Authority of India (SAIL) – Seamless pipe leader
5. Local Udhhyog Dealers – Visit TradeIndia & Justdial listings

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7. Industrial Applications by Type

MS Seamless Pipes:

• Oil & gas
• Chemical transport
• Automotive
• Power generation
• Marine engineering

MS ERW Pipes:

• Residential piping
• Irrigation
• Structural supports
• Construction scaffolding
• Road and bridge fencing

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Frequently Asked Questions

Q1. What is the main difference between MS seamless and ERW pipes? MS seamless pipes have no welds and are stronger under pressure. ERW pipes have a longitudinal weld and are suitable for low to medium pressure applications.

Q2. Which type of MS pipe is better for gas pipelines? MS seamless pipes are preferred for gas pipelines due to their strength and pressure resistance.

Q3. Are seamless pipes more expensive than ERW pipes? Yes, seamless pipes cost more due to the complex manufacturing process and higher strength.

Q4. Can ERW pipes be used in water supply systems? Yes, ERW pipes are commonly used for water lines, especially in residential and light-duty industrial systems.

Q5. Where can I buy MS seamless or ERW pipes in India? You can buy from verified suppliers like Jindal Pipes, Tata Steel, or list your requirement on TradeIndia and Justdial.