The difference between seamless pipe and welded pipe



So, you want to know the difference between seamless pipe and welded pipe. Well, it’s not that hard to understand once you get down to the basics.

Seamless pipe and welded pipe are two types of pipes used to transport fluids. The seamless pipe is made from a single piece of steel, while the welded pipe is formed with different pieces of metal that are welded together. Both pipes have their own advantages and disadvantages, so it is necessary to understand them before choosing one type over another one. 

In this article we will learn about the differences between these two types of pipes, which one is more durable, and how they should be maintained after installation.


What is a seamless pipe?


Stainless Steel Seamless Pipe manufacturers is a large category of piping material that comes in a variety of compositions, forms, and varieties. All varieties of stainless steel pipes are manufactured and supplied by us. Shree Impex Alloys has been in the company for a long time and also Stainless Steel Seamless Pipe Manufacturer in India. Stainless steel pipes come in a variety of shapes and sizes. Shree Impex Alloys is one of the seamless pipe manufacturers in india.


Seamless pipe is a pipe that is made by rolling. It’s a type of metal, usually aluminium or copper, which has no welds or seams in it. Seamless pipes are used in many different industries including oil and gas, chemical manufacturing, food processing and power generation.


Stainless Steel Seamless Pipes is widely used in engineering and construction; it is a hollow steel strip with no seams, and it is primarily used to transport liquids pipelines. It comes in a variety of shapes and sizes, and it is one of the heavier types of steel. It has a high corrosion resistance and is resistant to general corrosion.


Will not rust; this property allows Stainless Steel pipes to last longer; most importantly, it is exceedingly clean and contains no pollutants.


Shree Impex Alloys is one of the largest seamless pipe manufacturers in india. A wide range of industries around the world rely on us for high-quality Stainless Steel Seamless Pipe. We are continuously looking forward to growing the amount of Stainless Steel Seamless Pipe in order to meet customer demand without compromising product quality. 


The process of making seamless pipe


In order to create a seamless pipe, square steel billets are heated and shaped into cylindrical shapes known as “rounds.” In a furnace, the round is heated to white-hot temperatures and rolled under intense pressure. 


A hole forms in the centre of the billet as it spreads, and a piercer tip in the shape of a bullet is pushed through it. After being pierced, larger diameter pipes undergo the mandrel mill process, in which the pipe shell is rolled through a mandrel mill with mandrel bars within. 


Through this procedure, a more uniform outer diameter (OD) and preset wall thickness are produced (WT). By utilising a plug mill, smaller diameter pipes can be produced.


Uses of Stainless Steel Seamless Pipes

Seamless pipe manufacturers in India are widely uses for the following such as:


  • Production of water wall pipes
  • Boiling water pipes
  • Superheated steam pipes
  • Superheated steam pipes for locomotive boilers
  • Large and tiny smoke pipes
  • Arched brick pipes 


Application of Stainless Steel Seamless Pipes


  • Anti-stain and Anti-Corrosion

The biggest threat to metal piping is corrosion. The dirt and UV radiation will cause the exterior of iron, steel, and concrete pipework to degrade. Other kinds of pipe inside walls seem to rust, sustain abrasion damage, or gather debris.


  • Value

The biggest threat to metal piping is corrosion. The dirt and UV radiation will cause the exterior of iron, steel, and concrete pipework to degrade. Other kinds of pipe inside walls seem to rust, sustain abrasion damage, or gather debris.


  • Stability and Adaptability

To increase the corrosion resistance of stainless steel, it can be treated with different substances like molybdenum, nickel, or nitrogen. High temperatures can be tolerated by stainless steel. Thin pipe walls can be created by combining different materials with stainless steel, producing a lighter finished product that is suitable for a variety of commercial and industrial applications.

  • Attractiveness

Exposed stainless steel pipes and fittings are a good choice for commercial premises because the material is naturally bright and attractive.

  • Domestic Business

Since they last longer and won’t need to be replaced every few seasons, stainless steel 304 pipes are a common choice in many homes. Any plumber would advise using stainless steel pipe because it is more resistant to the weather for your tub, tap, and the rest of the structure, especially exposed pipes. They are also regarded as being tougher.


What is a welded pipe?


Shree Impex Alloys is one of the largest Stainless Steel Welded Pipe Manufacturers in India.We offer premium stainless steel welded pipes to a range of global sectors. Manufacturing of Stainless Steel Welded Pipes is done in accordance with both Indian and international standards. By using a roller or plate bending machine to cold form a flat strip, sheet, or plate into a rounded or circular shape, a welded pipe is created. The pipe is then joined using a high energy source, either with filler material or without. Large sizes of welded pipes can be made without any size limitations. Large-scale transportation of water, oil, or gases typically uses welded pipes.


Welded pipe is a type of pipe made from metal materials by joining the ends together. The welded pipe is a type of piping that has been welded together, and it can be used for many different purposes. 


Welded pipes are typically used when there are large distances between the end points and very little space inside them (such as in areas with tight car parks). They’re also often used because they have better strength than other types of piping systems; this means you can use fewer pieces but still get an effective product with less weight overall when compared to other options available on the market today! 


The process of making the welded pipe

The ends of the seamless pipe are joined by a brazing or welding process, which can be accomplished by either gas or arc welding. When using gas, an inert gas such as argon is used as the shielding gas with hydrogen being used as the heating agent. This type of welding is called “arc” because it uses electricity from an electrical arc to heat up metal plates and melt them together at high temperatures without requiring any heat-resistant materials such as plastic for protection against breakdowns during production processes.

This type of piping can be more expensive than seamless piping because it requires extra steps during production: two sets of TIG (tungsten inert gas) arc welding operations must be done at different temperatures for each end—one for each side—and these parts must be heat treated before installation onto equipment such as pumps or motor bearings. 


the application of welded pipes

  • Architecture
  • Food and beverage processing industries
  • Automotive industry
  • Aerospace construction
  • Pharmaceuticals
  • Marine and fishing
  • Construction and mining
  • Pipelines


The specifications of the welded pipe

The welded pipe is produced by welding the pipe ends together. This method of joining pipes has a lower cost than the seamless pipe, but it also has some disadvantages:

  • The welded pipe is less durable than the seamless pipe. It can be damaged by external forces and wear out over time due to friction between its inner and outer surfaces, as well as other stresses caused by use or exposure to harsh environments (such as high temperatures).
  • The pressure rating for a welded product must be higher than what’s required for its counterpart—because there are no seams in these pipes, they cannot withstand high pressures without leaking under pressure conditions like those encountered during natural disasters like hurricanes or earthquakes; thus this type of product must have higher ratings than those made with seams.*


Each type of pipe has its advantages and disadvantages. In order to select the most suitable type, you need to know the performance and specifications of each type.


  • Seamless pipe is more expensive than welded or cast iron piping. However, it’s also more durable, flexible and resistant to corrosion so it can be used in harsh environments such as construction sites where there are high levels of dust exposure or corrosive substances present in the air (such as sulphur dioxide).
  • Welded pipes are less expensive than seamless ones but they are less durable due to their lower strength factor; therefore they’re only recommended for short-term use such as temporary construction projects where frequent maintenance needs aren’t necessary because repairs won’t occur often enough for them to ever become necessary anyway!


Want to know who is the best pipe manufacturer in India

Shree Impex Alloys is a well-known business that specialises in producing, selling, exporting, and trading a wide variety of industrial pipes and tubes that are of the highest possible quality. 


All of our products at Shree Impex Alloys are guaranteed to meet worldwide quality standards and specifications.




In conclusion, it is very important to know the difference between seamless pipe and welded pipe. This will help you make an informed decision when purchasing one or the other.

So, now that you know a little bit about the differences between welded and seamless pipe, what are you going to do with this information? If you are in need of a pipe, then Shree Impex Alloys is the leading seamless pipe manufacturer and welded pipe manufacturer in India, we have a variety of products with different sizes. Then consider which type will work best for your application. Take into consideration the different types of steel available as well as all of their benefits before making a decision.

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