1. **What is a seamless steel pipe?**
A seamless steel pipe is manufactured without welding seams, formed by hot-rolling or cold-drawing solid steel billets. It offers uniform strength and is ideal for high-pressure/temperature applications.
2. **Difference between seamless and welded steel pipes?**
Seamless pipes lack welded joints, providing higher strength and reliability for demanding conditions. Welded pipes are made by rolling and welding steel plates/sheets, are cheaper, but have a potential weak point at the weld.
3. **Which is better, seamless or ERW pipe?**
Seamless pipes are better for high-pressure, high-temperature, or critical applications due to superior strength. ERW (Electric Resistance Welded) pipes are cost-effective and suitable for low/medium-pressure uses like water lines or structural purposes.
4. **Difference between seamless steel and stainless steel?**
"Seamless" refers to manufacturing (no weld), while "stainless steel" is a material type (chromium-rich, corrosion-resistant). Seamless pipes can be made from stainless steel, carbon steel, or other alloys.
5. **Difference between seamless steel and carbon steel?**
"Seamless" describes the production method, while "carbon steel" refers to iron-carbon alloy material. Seamless pipes can be carbon steel, stainless steel, etc. Carbon steel pipes can be seamless or welded.
