When selecting the right pipes for your industrial or construction project, choosing the correct standard is very important. In India, two popular standards for carbon steel pipes are IS 1239 and IS 3589. These standards are widely used in many industries and are well-known for their strength and quality.
This blog will help you understand the key differences between Carbon Steel IS 1239 / IS 3589 Pipes, so you can make the right decision for your project.
What is IS 1239 Pipe?
IS 1239 pipe is a carbon steel pipe used mainly for low-pressure applications. It is generally used in water transportation, plumbing, gas pipelines, and small-scale industrial use.
Features of IS 1239 Pipe:
Made from mild steel or low-carbon steel.
Suitable for low-pressure systems.
Available in small diameters.
Easy to bend and weld.
Comes with plain, beveled, or threaded ends.
IS 1239 Pipe Chart
The IS 1239 pipe chart provides details such as:
Outer diameter
Wall thickness
Weight per meter
This chart helps engineers and buyers pick the right size of pipe for specific needs.
What is IS 3589 Pipe?
IS 3589 is another carbon steel pipe standard. These pipes are used for high-pressure and larger diameter applications. They are stronger and more durable compared to IS 1239 pipes.
Features of IS 3589 Pipe:
Used in high-pressure fluid transmission.
Common in oil and gas pipelines, water mains, and structural use.
Available in bigger diameters (up to 1200 mm).
Suitable for welding and bending.
Key Differences Between IS 1239 and IS 3589 Pipes
| Feature | IS 1239 Pipe | IS 3589 Pipe |
|---|---|---|
| Application | Low pressure | Medium to high pressure |
| Size Range | Up to 150 mm | Up to 1200 mm |
| Thickness | Lighter wall thickness | Thicker wall |
| Usage | Plumbing, gas, domestic water | Oil, gas, water mains, structural |
| Strength | Moderate | High |
| Cost | More affordable | Higher due to strength and size |
Which One Should You Choose?
Choosing between CS IS 1239 / IS 3589 Pipes depends on your project’s needs:
Use IS 1239 pipes if your application involves low pressure, such as plumbing or domestic water supply.
Use IS 3589 pipes if you need strong and large-diameter pipes for fluid transport or structural support.
If you are unsure, always refer to the IS 1239 pipe standard and IS 3589 specifications to match the pipe type to your usage.
Final Thoughts
Both Carbon Steel IS 1239 / IS 3589 Pipes are trusted and widely used across various sectors. Understanding their key differences will help you select the right pipe for your application. Whether it’s strength, size, or pressure requirements, comparing these standards ensures your project gets the best match.