317L Round Bar

There are a number of metal alloys used in the manufacturing and fabrication of stainless steel tubes, and one of the most versatile is stainless steel tubes. Pipes can either be seamless or welded, and these are the two types most commonly seen on the market. A majority of the decision on whether to use welded or seamless pipes will be determined by the application requirements of the product. As you choose between these two options, it is important to bear in mind that the tube must meet the specifications of your project and that it must also be able to cope with the conditions for which the tube will ultimately be used.

What Is Stainless Steel ERW Pipes?

Electric Resistance Welded ERW stainless steel pipes are pipes that are manufactured from strips or coils of stainless steel. This type of tube is made by pulling a ribbon of steel through a series of rollers, then forming it into a tube, which is then fused through the application of an electric charge to the tube. In order for an ERW pipe to feature strength, it should be fitted with either strips or coils that are electric-resistant welded in a longitudinal direction.

As a welding process, ERW refers to a process in which metal parts in contact are permanently joined by heating them with an electric current, which melts the metal at the point of contact. There is a wide range of applications for electric resistance welding, including manufacturing steel pipe and assembling automobile bodies for a variety of applications, for example

In addition to being widely used in many different industries, ERW pipes are also used in a variety of applications, such as engineering, fencing, line pipes, scaffolding, etc. As an example, ERW pipes are widely used in agriculture and irrigation, particularly in sewerage systems, water mains, industrial water lines, deep tube wells, plant piping, and so on. Some of the most common applications of ERW pipes are listed below. As well as being widely used in gas pipelines, they are also widely used in the manufacture of non-toxic gas pipelines such as those for natural gas, LPG, and other non-toxic gases.

The ERW (Electric Resistance Welded) pipes are made of high-quality stainless steel with chromium and nickel content. An ERW pipe is made by rolling a sheet of stainless steel into the shape of a tube and then welding the edges of the tube together with the use of a high-frequency electrical current. There are several benefits to this welding process, including the ability to produce a strong, reliable, and cost-effective pipe that is suitable for a wide variety of applications.

The stainless steel ERW pipes are available in a wide variety of sizes and thicknesses, making them a perfect choice for a number of different industries, including oil and gas, petrochemical, food processing, pharmaceuticals, and more. This type of steel pipe has several advantages over other types of steel pipes, including superior corrosion resistance, excellent strength and durability, and easy maintenance. Additionally, these pipes can be easily customized to meet specific project requirements, such as high-temperature applications or environments that are corrosive to metals, for example.


Methods Of Manufacturing ERW Pipes

It is important to note that there are different dimensions and standards for these pipes. There are a number of medium-range schedules available for ERW Schedule 40 Pipes, which permits the pipe to be contained under medium-range pressures. For each of the outer diameter sizes of pipes, there are schedules that govern the thickness of the walls. There is no doubt that steel pipes of 316-grade are one of the most commonly used pipes in this market segment

As a buyer of ERW steel pipes, it is essential that you understand the process of how they are manufactured. Steel Pipe Souring uses High-frequency Induction Welding Technology in order to manufacture ERW pipes, and is one of the best ERW stainless steel pipe suppliers in India. There is a misconception that seamless stainless steel pipes will be of better quality than ERW stainless steel pipes as customers believe seamless stainless steel pipes are flawless and will be of better quality, but this is not true at all. There is no need to purchase the most expensive one in order to ensure quality because every pipe and the method by which it is made has its own faults and shortcomings. Depending on what the customer wants to use the pipe for, whether that is for oil or water-based pressure work, or even other heavy elements, it is up to the customer to choose the best pipe in order to ensure quality.

Our ERW chrome steel tubes & stainless steel electrical resistance welding pipes are available in a variety of material grades other than 304 stainless steel tubes. Typically, these pipes are used for the transportation of liquids under low pressure, such as water and oil.

Our ERW chrome steel tubes & stainless steel electrical resistance welding pipes are available in a variety of material grades other than 304 stainless steel tubes. Typically, these pipes are used for the transportation of liquids under low pressure, such as water and oil.

Special Features Of ERW Stainless Steel Pipes

  • The corrosion resistance of this product is very high
  • The malleability of the material is very high
  • The strength that is second to none
  • A durable, sturdy, and long-lasting product

ERW Pipes Applications

A major advantage of the pipes is the fact that they are strong along their entire length. Since chrome steel ERW Square Pipe has an increased strength, it is used in a large number of applications because of its increased strength.

In order to ensure that ERW pipes are of high quality, there are a number of tests are conducted on them. The advantages of using ERW pipes include cost-effectiveness, tolerance, reduction in weight, and performance. There are several benefits to using ERW pipes. There are many different types of pipes of this type that are utilized in a wide variety of fields. There are many popular applications for ERW pipes that you may already be familiar with, but here are just a few that you may not be familiar with:

Stainless Steel ERW Pipe

 Oil And Gas Industry

There is no doubt that this industry is one of the largest contributors to the economy and development of this country. A fuel oil product and a gasoline product are the end products of the process. There are three main processes that need to be followed:

  1. Upstream – This is a process in which natural gas and crude oil are surveyed and studied, and drilling is carried out.
  2. Midstream – As part of the midstream process, the crude oil is moved, stored, and prepared in a cleanser in order to be consumed. In the course of shifting or transportation processes, pipelines and oil tankers can be used in order to move the goods.
  3. Downstream – The downstream process includes purifying the crude oil, filtering the crude oil, and cleaning the natural gas in order to make it safe for consumption.

 Automotive  Industry

There is a high likelihood that stainless steel will be used most frequently in the exhaust systems of vehicles in the automotive industry

Stainless steel exhausts are known for their durability, which makes them one of the most popular products in the market. Considering that the exhausts are sturdy and long-lasting due to the substances used, they should be considered an investment as well. Aside from being strong and durable, absolute steel is also rust and corrosion-resistant, which means that there is one less thing you have to worry about by choosing it. There is usually a warranty associated with stainless steel exhausts due to the high cost of these products. It’s no surprise that any problems that may occur can be promptly dealt with.

Thermal Powers

Thermal power plants are almost entirely made up of stainless steel, and stainless steel can be found in every component of the plant, no matter how big or small the department is. An example of one of the necessary elements are pressure tubes, which are crucial for making sure the plant is functioning in a safe way. Coolant circulates in the reactor and serves mainly as a means to maintain the reactor’s temperature.

  • Containment Vessels 

 In a nuclear plant, one of the most important components is a stainless steel containment vessel, which is one of the biggest components. One of the primary functions of this component is to protect the reactor from outside influences and to ensure that workers are protected from the harmful effects of radiation on their health

  • Fuel And Coolants 

A continuous flow of coolant circulates constantly around the core of the plant, ensuring that the uranium oxide balls do not overheat until the plant is powered by uranium oxide balls that are stored in tubes.

  • Pressure Tubes 

Fuel or coolants can be stored in these tanks (see above for more information). Some plants use larger vessels to contain the moderator or coolant that they use as part of their cooling process. There Is No Difference Between Tubes And Vessels, As Both Are Made Of Stainless Steel Depending On The Use

  • Steam Generators 

There is a pressurized coolant in the reactor that converts the heat that is produced into steam, which passes through the turbines and powers them. Steam generators are a common feature of most reactors.

  •  Moderators 

In the core of the reactor, there is a moderator (graphite or water); this is responsible for slowing the neutrons that are produced by fission.

  • Engineering Purposes

There are several types of fencing, pipelines, and scaffolding that can be installed

ERW pipes and tubes are also used for a wide range of engineering purposes, including fencing, scaffolding, line pipes, and so forth. This is a stainless steel ERW pipe that is normally used in applications such as petrochemicals, pharmaceuticals, oil and gas, chemical processing, and food processing.


Types Stainless Steel ERW Pipes

  • A type of stainless steel known as austenitic stainless steel ERW pipes contains high levels of nickel and chromium, making it highly corrosion-resistant and suitable for a range of high-pressure and high-temperature applications. Chemical, petrochemical, and food processing industries are among the industries that commonly use austenitic stainless steel ERW pipes.
  • Ferritic stainless steel ERW pipes: Ferritic stainless steel contains a high level of chromium but has a lower level of nickel than austenitic stainless steel. It is a type of steel that is magnetic and has excellent corrosion resistance due to its magnetic properties. It is often the case that ferritic stainless steel ERW pipes are used in applications where high-temperature resistance is not required.
  • ERW Duplex Stainless Steel Pipes: Duplex stainless steel is composed of both austenitic and ferritic structures, giving it superb corrosion resistance, as well as a high degree of strength. Pipes made from duplex stainless steel ERW are commonly used in the oil and gas industry, as well as in the marine and chemical processing industries.
  • This stainless steel ERW pipe is made from martensitic stainless steel, which contains high levels of carbon and is known for its high strength and hardness. As a result, Martensitic stainless steel ERW pipes are frequently used in applications that require a high level of strength and durability, such as in the aerospace and defense industries.

Advantages Of ERW Stainless Steel Pipe

There is a high degree of dimensional accuracy in this product. As a result of the high dimensional accuracy of strip rolling and the tight control of pipe material in the ERW steel pipe production process, deviations between ERW steel pipe diameters and wall thicknesses are much smaller than they are in seamless steel pipe production.

(2) Good mechanical properties. As the ERW steel pipe with easy control of rolling, along with the welding technology and online heat treatment technology, the performance of the weld can be controlled, so the straight seam welded steel pipe is able to elongate 8% -10% more than seamless steel pipes, which is because the carbon content of straight seam electric-welded pipes is less than 12% lower than the carbon content of seamless tubes.

(3) ERW steel pipes with high concentricity and uniform wall thickness are characterized by a uniform microstructure that is strong in its ability to collapse after heat treatment.

(4) As a result of the good extension of the steel, the flattening test of straight-seam steel pipes is better than that of seamless steel pipes because the extension of the steel is better.

(5) It is a fact that seamless steel pipes do not have the same impact toughness as ERW steel pipes.

(6)It is important to note that longitudinal resistance welded tubes are not welded to different metals, but they are also subjected to rigorous on-site heat treatments before welding and as a result, they retain their basic properties of welding and material properties after welding.

Application of Stainless Steel ERW Pipe

  • Chemical Industries
  • Sugar Industries
  • Evaporators, Condensers
  • Food & Beverages
  • Fertilizer Plants
  • Dairy Industries

Sarth Maru
Sarth Maru