Grade and Uses
Stainless steel welded pipes come in a variety of grades such as 201/304/304L/313/316L/310/312/410/420/430/2205/250, where 201 is the most economical choice and 250 is the most expensive option. Each of these grades has a different level of resistance to corrosion, thickness, and tensile strength. It is most commonly used in construction, oil and gas, petrochemical, and automotive industries as it can withstand extreme temperatures, pressures, and stress. The appropriate grade and thickness of the pipe need to be selected depending upon the application requirements.
Price
One of the deciding factors for choosing a pipe is the price. Not all grades of stainless steel welded pipes are priced equally. Prices fluctuate depending upon various factors such as the grade, thickness, diameter, manufacturing process, and market demand. The current market price of these pipes varies from $1100 to $3600 per metric ton.
Manufacturing Process
Stainless steel welded pipes are made through two different methods, namely EFW (Electric Fusion Welded) and ERW (Electric Resistance Welded). EFW pipes are made by melting the edges of coils of steel using electric arcs, followed by welding them together. On the other hand, ERW pipes are made by applying pressure to the edges of steel strips to create a seam and welding them together. The EFW method produces pipes with a broader diameter, and the ERW method produces narrower pipes, which makes it more suitable for small scale applications.
Advantages
Stainless steel welded pipes have several advantages over other pipes. First of all, they have higher corrosion resistance compared to other pipes, and therefore they are suitable for use in harsh environments. Secondly, they are known for their high strength and durability, making them long-lasting. Thirdly, they offer versatility in terms of usage, as they can be used for different applications. Finally, they can withstand high temperatures and pressures, making them suitable for use in industries like power generation and chemical.
Conclusion
Stainless steel welded pipes are essential for many industrial applications, and selecting the right grade, diameter, and thickness of the pipe based on the requirements is crucial. The prices may vary depending on the market, but the advantages of stainless steel welded pipes make it a worthy investment. It is always advisable to purchase stainless steel welded pipes from reputed manufacturers who follow industry standards to ensure their durability and longevity.