MILD STEEL PIPES
Key Features
- Ductile and easy to weld: Due to low carbon content, mild steel is soft and easy to shape or weld.
- Affordable: Cheaper than stainless steel or alloy steels.
- Used in general engineering: Suitable for transporting water, gas, and other fluids, especially in non-corrosive environments, needs to be painted or coated to prevent rusting
Properties of MS Pipes
| Property | Description |
| Material | Mild steel (low carbon) |
| Strength | Moderate strength |
| Flexibility | High (can bend without breaking) |
| Weldability | Excellent |
| Corrosion Resistance | Low (needs coating or painting) |
| Durability | Good if protected properly |
Seamless pipe
A seamless pipe is a pipe without any welded joint or seam. It is manufactured using a solid round steel billet, which is heated and then pierced or extruded to create a hollow tube.
“The seamless pipe industry is supported by prominent manufacturers like Apollo, Tata, JSW, Jindal, and Surya, known for their reliability and product excellence.
How is it Made?
Seamless pipes are made by heating a solid steel billet and piercing it to form a hollow tube, then rolling it to the desired size.
Manufacturing Process
Billet Selection
A round steel bar (billet) is selected.
Heating
The billet is heated to a high temperature.
Piercing
A mandrel or piercing tool is used to create a hollow tube.
Rolling/Stretching
The tube is elongated and shaped using rollers.
Finishing
The pipe is straightened, cut, tested, and treated.
Semi-Seamless pipe
A Semi-Seamless pipe is generally understood to be:
A welded pipe that is processed or finished to resemble a seamless pipe in terms of surface quality, roundness, or wall thickness uniformity.
“Key contributors in the semi-seamless pipe manufacturing sector include established companies like JDS and MSP, offering reliable and durable piping solutions.”
How is it Made?
Semi-Seamless pipe is made by welding a steel strip (like in ERW pipes), but then processed further (cold drawn or treated) to make the weld invisible and give it a seamless-like appearance.