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يوليو 3, 2023
يوليو 3, 2023 admin

What is difference welded pipe and seamless pipe   ?

The main difference between welded and seamless pipes is the possibility of a multi-layer material consisting of several aluminum alloys. The coating layer is widely used in pipes for the production of heat exchangers, to allow baking in the oven or flame and achieve corrosion resistance.

For industrial applications that require maximum strength and formability, it is possible to opt for Series 5 leghe alloys, which have high dimensional stability.


seamless pipe


Seamless pipe Stainless Steel  and carbon steel Pipe Manufacture Processing

Seamless pipes Seamless pipes are mainly used Moderna when the standard specifies “” seamless standards ” but, current standards  continuously revised to meet modern welding production technologies.

Another advantage of seamless pipes is that they can offer higher resistance, compared to welded pipes, to corrosion because they have little potential for impurities. By using seamless pipes it is possible to avoid possible defects and differences in malleability that may be associated with the welded area in this type of pipes. So seamless pipes are often better suited for the most critical applications.

For years, all stainless steel pipes have been seamless but, advances in welding and metal purification technologies have given rise to the wider use of welded pipes. Through more efficient and cost-effective manufacturing technologies, more than 80% of pipes today are welded pipes.

What stainless steel pipes without stitching, and also what are the  advantages?

smooth steel tube without longitudinal drilling. Seamless pipe production needs a system to force the hole into the billet.

stainless-steel-Seamless VS Pi

Piercing and rolling rotation is one of the most common methods of generating smooth tubes today. The process begins with a round bar made of conditioned Steel, which is heated, pierced and also processed. The bar is made to flow around a piercer factor in order to form a hollow billet.

The inside of the pipe is supported with a mandrel or a plug while the billet roller is stretched. The sizing of the steel pipe is achieved by further rolling on the outer diameter.

What are welded stainless steel pipes and what are the advantages?

Stainless steel pipes in welded the process of manufacturing welded pipes begins with the Rolling of a steel coil to the desired scale density.

The result is a coil of a level Strip. The next action involves cutting the Strip according to the size that refers to the size of the TV to be created.

The tube is developed by moving the cut coil with a series of rollers, as well as the television seam is after it w A sequenced application is used to

welded seam, as well as a heat treatment process is used to complete the welded pipe. Rescued pipes can after that be attracted over spindles and ground if necessary to smooth the welded joint and make it virtually impossible to see with the naked eye.

Tube eleded and trailed pipes, because less drawing and annexation are required in the manufacture of a welded and attracted pipe, the cost of welded and attracted pipes can be less expensive than seamless pipes as well as can normally be achieved faster than seamless pipes (although the decrease in Intermediate Supply start size for seamless pipes can also lead this time).

 Seamless Stainless steel pipe Processing

Because less drawing and annealing is required in the manufacture of a welded and drawn pipe, the cost of welded steel pipes can be less expensive than seamless pipes and can typically be procured faster than seamless pipes. Welded pipes are often used in LNG (liquefied natural gas) plants, tankers and for warehousing and other oil and gas applications. In offshore pipes, welded pipes are used below sea level in flow lines, umbilicals and reserve pipes. Above sea level, they are often found in process pipes, seawater and service systems.

The decision whether to use a seamless or welded pipe depends mainly on the tolerances of the specified pipes, as we said before it is all about knowing where to commit the pipes thanks to the project.

Rely on ATI SRL for your stainless steel pipe plant! Contact us or fill out the form for more information, our staff will meet all your demands thanks to its great professionalism and attention to the needs of our customers.

seamless pipe vs welded pipe

Seamless and welded pipes are two primary types of pipes that are used in various industries and applications. Each has a set of characteristics and advantages that make them suitable for certain uses.

Seamless pipes:
– Seamless pipes are made by hot or cold drawing with no welding, which reduces any weak points that might result from the welding process.
– They are characterized by high durability and high-pressure strength, making them suitable for applications that require high strength, such as high-pressure pipelines.
– They are generally more expensive than welded pipes due to the more complex manufacturing process.

Welded pipes:
– Welded pipes are made by rolling steel sheets or strips and then welding the edges together.
– While they may have weak points at the welded seams, modern welding techniques can make these seams as strong as the rest of the pipe.
– Welded pipes are suitable for many applications, especially where the pipe’s diameter is large.
– They are generally less expensive than seamless pipes and are more readily available in long lengths and large diameters.

It’s important to note that whether a seamless or welded pipe is used will depend on the specific requirements of the application, such as the pressure the pipe needs to withstand, the substance being transported through the pipe, and the budget for the project. Each type of pipe has its own advantages and disadvantages, and the choice between the two will often come down to the specific needs of the project.

seamless pipe sizes

Seamless pipe sizes can vary greatly depending on the specific requirements of a project. In general, however, seamless pipes are often available in the following size ranges:

– Nominal Bore (NB) Size: From 1/8″ to 48″. This is a commonly used measurement in the piping industry and refers to the inside diameter of the pipe.
– Outside Diameter (OD): From 1/4″ to 48″. This is another common measurement used and refers to the outside diameter of the pipe.
– Wall Thickness: From schedule 5S to schedule XXS. The schedule number on a pipe relates to the thickness of the pipe. The larger the schedule number, the thicker the wall of the pipe. Schedule 40 is a commonly used standard.

Please note, these are general ranges and the actual sizes available may vary between manufacturers and specific products. For example, very large diameter pipes may not be available in a seamless construction due to manufacturing limitations. Always check with your pipe supplier or manufacturer for specific size availability and suitability for your application.

Also, the sizing of pipe can be confusing because the terminology may refer to historical dimensions. For example, a half-inch iron pipe does not have any measure that is a half inch initially, but it were 1/2″ in inner diameter in the 1800s because of the inner diameter of the pipe, including the thickness of the wooden plank, came out to be 1/2″. It’s important to understand that the term “nominal” in nominal bore (NB) is used because sizes are approximate and not necessarily an exact measure of the diameter.

When selecting pipe size, it’s important to consider both the physical dimensions of the pipe and its pressure rating, which is determined by the pipe’s material and wall thickness

seam and seamless pipe difference

Seamless and seamed (or welded) pipes are two primary types of pipes used across various industries. The main difference between them lies in their manufacturing process, which directly impacts their performance and applications.

**Seamless Pipes:**

Seamless pipes are manufactured through an extrusion process, where a solid round steel billet is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. This method does not include any welding or seam, hence the name “seamless”. The absence of a seam results in a uniform structure around the entire circumference of the pipe, providing it with superior strength under loads. This manufacturing process also allows the production of pipes with a precise diameter and wall thickness.

**Applications of Seamless Pipes:**

Because of their strength and uniformity, seamless pipes are generally used in high-pressure applications, including refineries, hydraulic cylinders, hydrocarbon industries, and in Oil and Gas infrastructure.

**Seamed or Welded Pipes:**

On the other hand, seamed or welded pipes are made from a strip or coil of steel, which is then welded in a spiral manner along its length. This results in a visible seam along the pipe’s length. The welding process can introduce some variability in the pipe’s structure and strength, particularly along the weld seam. However, with advancements in welding technology, the strength of the welded seam has significantly improved and can often match or exceed the rest of the pipe.

**Applications of Welded Pipes:**

Welded pipes are typically used in low to medium pressure applications, and they can be a more cost-effective choice for less critical applications or for larger diameter pipes that would be impractical to produce as a seamless pipe.

To summarize, the main differences between seamless and welded pipes are their manufacturing process, strength, and cost, with seamless pipes generally being stronger but more expensive, and welded pipes being more cost-effective but potentially less uniform in strength across their length. The choice between the two types will depend on the specific requirements of each application.

seamless pipe specification

Seamless pipe specifications can vary greatly depending on the specific requirements of a project. However, there are several industry standards and specifications that are commonly used for seamless pipes. Here are a few examples:

1. **ASTM A106**: This specification covers seamless carbon steel pipe for high-temperature service (Note: A106 does not have a corresponding specification for welded pipe.)

2. **ASTM A53**: This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26.

3. **API 5L**: This specification establishes requirements for two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipe for use in pipeline transportation systems in the petroleum and natural gas industries.

4. **ASTM A312**: This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

5. **ASTM A335**: This specification covers seamless ferritic alloy-steel pipe for high-temperature service.

Each of these specifications includes details about the material, manufacturing process, heat treatment, chemical composition, mechanical properties, and testing requirements for the pipes.

It’s important to note that the specifications provided are only a few examples, and there are many other specifications that can apply depending on the specific application and materials involved. Always consult with a pipe supplier or engineer to determine the appropriate specifications for your particular needs.

seamless pipe used for

Seamless pipes are used in a variety of industries and applications due to their strength, resistance to leaks, and ability to withstand high pressures. Here are some common uses of seamless pipes:

1. **Oil and Gas Industry**: Seamless pipes are commonly used in the oil and gas industry for drilling and transport of oil and gas. They are used in both upstream operations (drilling of underground wells to access oil and gas reserves) and downstream operations (the processing of oil and gas and their distribution to end users).

2. **Chemical Industry**: Given their ability to resist high pressures and temperatures, seamless pipes are often used in chemical plants for transporting fluids, gases, and granular materials.

3. **Power Generation**: Seamless pipes are used in power plants, particularly in boilers, where high-pressure steam is used to drive turbines for electricity generation.

4. **Automotive Industry**: In the automotive industry, seamless pipes are used to manufacture parts like axles and cylinders due to their strength and durability.

5. **Construction Industry**: In construction, seamless pipes are used for a variety of structural purposes, such as scaffolding and as structural elements in buildings.

6. **Hydraulic Systems**: Seamless pipes are commonly used in hydraulic systems due to their ability to withstand high pressures without risk of leakage at the seams.

7. **Heat Exchangers and Condensers**: Seamless pipes are used in heat exchangers and condensers due to their ability to withstand high temperatures and pressures, and their resistance to corrosion.

These are just a few examples of where seamless pipes are used. The choice between seamless and welded pipes will depend on the specific needs and requirements of the project, including factors like the pressure the pipe needs to withstand, the material being transported, and the budget.

seamless pipe price

Seamless pipe prices can vary widely based on factors such as material, diameter, wall thickness, and market conditions. I recommend reaching out directly to suppliers or checking online industrial marketplaces for the most accurate and up-to-date pricing information.

seamless pipe material

Seamless pipes can be made from a variety of materials depending on the specific needs of the project. Here are some of the most common materials used in the production of seamless pipes:

1. **Carbon Steel:** Carbon steel is one of the most popular materials for seamless pipes due to its versatility and affordability. It’s suitable for a wide range of applications and is often used in the oil and gas industry.

2. **Stainless Steel:** Stainless steel seamless pipes are known for their corrosion resistance, making them ideal for applications where the pipes will be exposed to corrosive substances. They are commonly used in the petrochemical industry, as well as in food processing and medical applications.

3. **Alloy Steel:** Alloy steel seamless pipes are made from a mixture of several metals, which can include chromium, molybdenum, nickel, and others. This type of pipe is known for its strength and durability, and it’s often used in high-pressure or high-temperature applications.

4. **Copper:** Seamless copper pipes are primarily used for plumbing, heating, and cooling applications. Copper is known for its excellent thermal conductivity, corrosion resistance, and flexibility.

5. **Titanium:** Titanium is a strong, light, and highly corrosion-resistant metal. While it is more expensive than other materials, titanium seamless pipes are used in demanding applications such as aerospace or certain chemical processes.

6. **Nickel Alloys:** Nickel alloy pipes have excellent corrosion resistance and high-temperature strength. They are used in harsh environments like those found in the oil and gas, power generation, and chemical processing industries.

7. **Inconel:** Inconel is a type of superalloy known for its ability to withstand extreme temperatures and corrosive environments. Seamless pipes made from Inconel are often used in the aerospace industry, as well as in power generation and chemical processing.

The choice of material will depend on a variety of factors, including the intended use of the pipe, the environmental conditions it will be exposed to, and budget constraints.seamless

pipe schedule 40

Schedule 40 pipe: It refers to the wall thickness of the pipe. The schedule number on pipe products relates to the thickness of the wall, with Schedule 40 being less thick than Schedule 80, but the outside diameter of the pipe remains the same. The higher the schedule number, the thicker the wall of the pipe.

a312 tp304
a312 tp316l
pipe smls
a312 tp304l
din 2448 pipe dimensions
a53 gr a
a312gr tp304

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