MS Seamless Pipe – Sizes, Prices, Standards & Industrial Guide by Udhhyog
When it comes to strength, durability, and leak-proof piping solutions in industrial sectors, MS Seamless Pipe remains the top choice. At Udhhyog, we help you understand the technical specifications, uses, pricing, and IS standard references for MS seamless pipes, so you can make an informed buying decision—whether for fabrication, fluid transport, or pressure systems.
In this detailed guide, we cover everything from the manufacturing process of seamless pipes to choosing the right wall thickness for your project.
1. What is MS Seamless Pipe?
MS Seamless Pipe (Mild Steel Seamless Pipe) is a hollow cylindrical tube with no welded joint along its length. It is manufactured from a solid billet of mild steel that is pierced through a die and mandrel to create a seamless product.
Because seamless pipes do not have a welded seam, they are more resistant to pressure, cracks, and leakage—making them ideal for high-pressure applications.
Keyphrase used: MS Seamless Pipe is preferred over welded pipes due to its structural integrity.
2. MS Seamless Pipe vs ERW Pipe
| Feature | MS Seamless Pipe | ERW Pipe |
|---|---|---|
| Manufacturing | Hot piercing from billet | Welded from rolled strip |
| Seam | No seam (leak-proof) | Welded seam visible |
| Pressure Resistance | High | Moderate |
| Cost | Higher | Lower |
| Applications | Boilers, pressure lines, oil & gas | General fabrication, plumbing |
If you need pressure-bearing capacity, always go for MS seamless pipe over ERW.
3. Manufacturing Process of MS Seamless Pipe
The seamless pipe manufacturing process includes:
- Billet Selection: High-quality mild steel billet.
- Heating: Heated in a rotary furnace.
- Piercing: Pushed through a piercing mill to form a hollow tube.
- Elongation: Passed through a mandrel mill for thickness control.
- Sizing: Final sizing for diameter and straightness.
- Cooling & Cutting: Cut to standard lengths (usually 6 meters).
Outbound Link:
Learn more about seamless pipe manufacturing (Wikipedia)
4. MS Seamless Pipe Sizes & Wall Thickness
Common NB Sizes (IS 1239 / IS 3589 / ASTM A106):
| NB (Nominal Bore) | OD (mm) | Wall Thickness (mm) | Schedule |
|---|---|---|---|
| 15 mm (½”) | 21.3 | 2.8 – 3.7 | SCH 40, 80 |
| 25 mm (1″) | 33.4 | 3.4 – 4.5 | SCH 40, 80 |
| 50 mm (2″) | 60.3 | 4.5 – 7.1 | SCH 40, 160 |
| 100 mm (4″) | 114.3 | 6.0 – 11.0 | SCH 40 – XXS |
| 200 mm (8″) | 219.1 | 8.2 – 18.3 | SCH 40 – XXS |
Download the full chart at Udhhyog Pipe Dimensions
5. MS Seamless Pipe Price List 2025
Prices vary based on OD, wall thickness, and quantity.
| Size (NB) | OD (mm) | Schedule | Price (₹/Meter) |
|---|---|---|---|
| ½” | 21.3 | SCH 40 | ₹110 – ₹150 |
| 1″ | 33.4 | SCH 40 | ₹160 – ₹220 |
| 2″ | 60.3 | SCH 80 | ₹300 – ₹420 |
| 4″ | 114.3 | SCH 40 | ₹600 – ₹800 |
| 6″ | 168.3 | SCH 40 | ₹900 – ₹1200 |
Bulk orders available. Visit Contact Udhhyog for RFQ.
6. Applications & Uses in Various Industries
MS Seamless Pipes are widely used in:
- Boiler and Heat Exchanger Lines
- Hydraulic & Pneumatic Systems
- High-Pressure Oil & Gas Transmission
- Refineries and Petrochemical Plants
- Fabrication and Structural Use
- Steam Lines
- Automotive Axles and Shafts
Internal Link: Explore Udhhyog’s Valves for High-Pressure Use
7. IS Standards for MS Seamless Pipes
| Standard | Description |
|---|---|
| IS 1239 | Mild Steel Tubes for Water, Gas, and Sewage |
| IS 3589 | Steel Pipes for Water and Sewage (Large Dia) |
| ASTM A106 | Seamless Carbon Steel Pipe for High-Temp Service |
| ASTM A53 | Standard Specification for Pipe, Steel, Black and Hot-Dipped |
Outbound Link: BIS Pipe Standards – Government of India
8. How to Select the Right MS Seamless Pipe
When selecting an MS seamless pipe, consider:
- Application Type (Fluid, Gas, or Structural)
- Pressure Rating Required
- Pipe Size and Wall Thickness
- End Connections (Plain End, Beveled, Threaded)
- Standard Compliance (ASTM/IS)
9. MS Seamless Pipe Accessories – Fittings & Flanges
Complete your project with compatible accessories:
- MS Seamless Elbows (90°, 45°, Long Radius)
- MS Tee & Reducers
- MS Flanges (Weld Neck, Slip-On, Blind)
- Threaded and Socket Weld Fittings
Internal Link: See All Pipe Fittings by Udhhyog
10. Where to Buy Seamless Pipes in India? (Udhhyog)
Udhhyog is one of the most trusted suppliers of MS Seamless Pipe in India. We serve industrial buyers across:
- Delhi NCR
- Gurugram
- Faridabad
- Uttar Pradesh
- Bhiwadi
- Himachal Pradesh
Why Buy from Udhhyog?
- ISI & ASTM Certified Products
- Seamless Pipe in Class A, B, C
- Bulk Availability in Standard Lengths
- Custom Cutting and Sizing
- Competitive Prices
- End-to-End Project Supply
Call Now: 9311120784
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Get Quote: https://udhhyog.com/rfq
11. FAQs about MS Seamless Pipes
Q1. What is the standard length of MS seamless pipe?
Usually 6 meters (20 feet), but custom cuts are available.
Q2. Which standard is best for high-pressure pipes?
ASTM A106 is preferred for high-temperature and high-pressure use.
Q3. Is MS Seamless Pipe suitable for underground use?
Yes, but ensure anti-corrosion coating is applied.
Q4. Can seamless pipes be used for structural fabrication?
Yes, they are widely used in structural and architectural projects.
Q5. What’s the difference between SCH 40 and SCH 80 pipe?
SCH 80 has thicker walls and is used in higher pressure applications.