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Seamless Steel Pipe
Quick Overview
Seamless Steel Pipe

Availability: In stock


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Application: Oil Pipe, Structure Pipe, Boiler Pipe, Fluid Pipe
Standard: Q195
Lengths: 6-12m
Outer Diameter: 10.3mm-2032mm
Thickness: 1mm-200mm
Surface: Hot galvanizing

Seamless Steel Pipe 

Quick Overview

  • The seamless steel pipes are formed by forcing molten metal into a mold with a plug in the center where the metal is later cut into the appropriate desired length.

  • Our seamless steel pipes are sourced from top, reliable seamless pipe manufacturers in China to provide you seamless steel pipes that have great quality and are highly cost-effective.

  • Seamless pipes are able to operate under higher pressures and temperatures, so it is preferred in high pressure environments.

Products description :

  • The seamless steel pipes are formed by forcing molten metal into a mold with a plug in the center where the metal is later cut into the appropriate desired length. 

  • Seamless steel pipes sold by CamaSteel receive surface treatment such as pickling through a slightly acidic solution, powdering, smoothing and so forth. 

  • They are the optimal choice when strength, resistance, corrosion resistance, and life span are important to the task. Despite these benefits, it is one of the costliest steel pipes to be produced in the market today.

seamless steel pipe

What is a Seamless Steel Pipe?

Seamless steel pipe is a kind of steel pipe with a circular and hollow center that has no seams around the end. It is typically available in carbon steel and stainless steel. It has great resistance to wear and corrosion, and doesn’t rust easily. It can be hot-rolled or cold-rolled. 

What are Seamless Steel Pipes Used for?

Seamless steel pipes are used in industries including automotive, oil and gas, construction, fertilizer, chemical, environmental technology, ship building, mechanical, and the boiling industry. Most common and popular uses of seamless steel pipes include transporting fluid, heat transfer, ship building, pumps, boilers, etc. 

What are the Benefits of Seamless Steel Pipe? 

  • Seamless steel pipes are very durable and withhold high levels of pressure, about 20% higher than welded pipes. Also, they are highly resistant to corrosion.

  • Seamless steel pipes don’t need heat treatment because they are hardened during the manufacturing process.

  • A seamless steel pipe can be used in place of a welded pipe, but not vice versa.

  • Seamless steel pipes have more solid round cross sections than welded pipes.

  • Seamless steel pipes have great strength and can support large amounts of weight.

seamless steel pipe

What is the Difference Between Seamless and Welded Pipe?

The seamless steel pipe is formed by perforating a steel ingot or a solid tube blank, and then hot rolled, cold rolled or cold drawn. The welded steel pipe is a steel pipe which is welded and formed by a steel strip or a steel plate to be deformed into a circular shape or a square shape, and has a joint on the surface.

Is Seamless Pipe Stronger than Welded?

Yes! Seamless steel pipe has better pressure capacity, strength is higher than ERW welded steel pipe. For this reason, seamless steel pipes are applied in high pressure equipment. The seams in welded steel pipes are the weak points of those steel pipes.

What is the Difference between Hot Rolled and Cold Rolled Steel?

Hot Roll and Cold Roll are common methods of manufacturing seamless steel pipes. Manufacturing hot rolled steel involves rolling steel at high temperatures (typically over 1700˚F). Hot rolled steel tends to be cheaper than cold rolled steel. Cold rolled steel is hot rolled steel that has been further processed by being allowed to cool at room temperature and annealed or temper rolled. 

Compared to hot rolled steel, cold rolled steel typically has a better, smoother surface that is oily to the touch. Most importantly, cold rolled steel is up to 20% stronger than hot rolled steel due to the strength hardening process.

seamless steel pipe

What is Stainless Steel? Its Relationship with Seamless Pipe?

Stainless steel is manufactured from steel alloy. The alloying elements enable stainless steel to be corrosion resistant and have long-lasting durability.

Common applications of stainless steel pipe includes:

  •  Food processing

  • Textile operations

  • Breweries

  • Water treatment plants

  • Oil and gas processing

  • Fertilizers and pesticides

  • Chemical applications

  • Construction

  • Pharmaceuticals

  • Automotive components

Seamless steel pipe is typically available in carbon steel and stainless steel. For this reason, seamless steel pipe is highly corrosion resistant and long-lasting. 

Seamless carbon steel pipe is a kind of seamless pipe made of carbon steel. Carbon steel is a basic steel that is a combination of iron and carbon. It is classified by how much carbon content is mixed in with the iron.Carbon steel is known for its strength and its ability to withstand very high temperatures.

Compared to stainless steel, carbon steel is more likely to rust and more brittle.

seamless steel pipe

How to Transport Seamless Steel Pipes?

Seamless steel pipes must be packaged and shipped carefully in order to prevent damage to the pipes. They also need to be sealed from too much moisture when packaging in bundles, especially if they have smaller diameter. They are typically exported by sea but can also be transported in bundles by trucks.

What Is Seamless Steel Pipe 

Seamless Steel Pipes are whole round steel that is perforated, and steel pipes whose surfaces are without welds. Seamless steel pipe is made up of just one piece of metal and doesn't have a crease(seam) or a welded joint. 

Seamless steel pipes are known for their desirable and flawless finishing, making them highly demanded. They are manufactured in rectangular, circular, or square shapes. Seamless steel pipes are strong and durable because they are not welded, and neither do they have joints, meaning the pipes have a uniform structure ensuring uniform distribution of strength. 

Is seamless steel pipe stronger than welded 

Seamless steel pipe is stronger than welded pipes. Seamless steel pipes have a uniform distribution of strength due to the absence of joints. 

seamless steel pipe

What Is the Difference Between Seamless and Welded Pipe 

There is a thin line between welded pipes and seamless steel. However here are some of the differences between welded and seamless steel pipes; 

  • Length 

Seamless steel pipe is often shorter than welded pipes. This is due to the difficulties in the manufacturing process of seamless steel pipes. Welded pipes can be manufactured in several sizes and lengths. 

  • Cost 

Seamless steel pipe is far more expensive than welded pipes, due to difficulties in that manufacturing process and the cost of materials used during production. Welded pipes have an easier manufacturing process which makes the cost of production lower. 

  • Pipe Surface 

Seamless steel pipe has a rough surface which is due to the extrusion process it goes through. However, welded pipes have surfaces smoother than seamless pipes. 

  • Process Of Production 

Seamless steel pipe has a complex manufacturing process which makes the manufacturing and time for procurement longer. However, welded pipes have a far simpler and shorter manufacturing process and procurement time. 

  • Application 

Seamless steel pipes are more durable and strong making them a high choice for high temperature, sensitive units, high temperature, and corrosive environments. While on the other hand welded pipes are applied in low pressure and less corrosive environments. 

  • Testing 

Seamless steel pipes don't need to be tested before use, while welded pipes have to be tested before it's used. 

  • Shape 

Seamless steel pipe has better ovality and is round while welded pipes have poor ovality. 

  • Strength 

Seamless steel can withstand very high pressure, while welded pipes can withstand only 20% less stress due to the welds. 

seamless steel pipe

How Do You Make A Seamless Steel Pipe 

Seamless steel pipe is made from a robust and round piece of steel known as a billet. The billet would have to be heated first, after heating it would be stretched and rolled over a firm or frame until the pipe becomes hollow. The shape of a seamless steel pipe is formed by being passed through a perforated tube. 

At this point, the seamless steel pipe is then passed through the following procedure; cold rolled, hot rolled, and cold draw. A seamless steel pipe that is hot rolled is manufactured through forging billets, perforating it, rolling, and then shaping. The tube is manufactured through the industrial extrusion process and is used in the manufacturing of seamless steel pipes with thick walls. 

On the other hand, the cold drawn process is used to manufacture seamless steel pipes by employing cold drawn technology, which makes the production of thin walls and small diameter seamless steel pipes possible. It is also important if the goal is to produce a pipe with a smooth internal surface. Some seamless steel pipes tend to harden while manufacturing, in which case the manufacturer doesn't need to employ heat treatment methods. 

How Do I Know If The Pipe Is Seamless 

The easiest way to identify a seamless steel pipe is to look at its appearance. Seamless Steel Pipes don't have any joints throughout the length and in their cross-section. There is an absence of welding joints. It often has a wall thickness of ⅛ inches to 26 inches. 

How seamless steel pipe is manufactured 

Seamless Stella pipe is manufactured using the process that heats and molds solid billet into a cylindrical-like shape and then rolls it continuously until it's stretched and hollowed. Since the hollowed center is shaped irregularly, a piercer point shaped like a bullet is pushed through the center of the billet as it is being rolled. After piercing, the pipe might still have an irregular shape and thickness, which is corrected by another set of rolling mills. 

Is seamless pipe more expensive? 

Seamless pipes are more expensive. It's about 30% higher than the price of welded pipes, and the price tends to increase if the diameter is greater. 

seamless steel pipe

What Are Seamless Steel Pipes Used For 

Seamless Steel Pipes are applied in several industries due to their unique properties such as their non-welded joints' uniform distribution of strength, their ability to withstand pressure capacity, high temperatures, better weight limit, high quality and so much more. The following are some of the uses of Seamless steel pipes; 

  • Hydraulics

  • Chemical processing plants 

  • Manufacturing of medical equipment 

  • Manufacturing of gas and oil lines 

  • Water purification plants 

  • Nuclear power plants 

  • High pressure and temperature units 

  • Sensitive measuring units 

What Is Seamless Carbon Steel Pipe 

Seamless Carbon steel pipes are made up primarily of carbon and iron, with a little amount of manganese, silicon, and copper. Seamless Carbon Steel pipes are stronger and highly resistant to stress. They are often used in heavy-duty industries. It has a smooth texture, is easily installed, and has a medium-range pressure rating. 

What Is Stainless Steel  

Stainless Steel is an alloy of iron, chromium, and some other rare cases. Stainless steel is corrosion resistant. stainless steel can be said to be recyclable. Stainless Steel is also environmentally friendly 

Stainless Steel is appealing, easy to maintain, extremely hygienic, has several varieties, and is highly durable. Stainless Steel is often used in many day-to-day objects. It is in several industries which include transportation, building and construction, medicine, energy, research, logistics, and food. 

What Is The Difference Between Steel Pipe and Iron Pipe 

Iron and Steel pipes might appear to be similar at first.  They might appear to be identical because they are both alloys of metal. The following are the difference between steel and iron pipes; 

  • Carbon Content 

The main difference between iron and steel pipes is the carbon content. While iron pipes have a carbon content of 3.0%-3.9%, steel has a carbon content of about 0.6-0.8%. With the carbon content, you can easily detect the pipes' hardness, hardening ability, and strength. 

  • Manufacturing Process 

Another significant difference between steel and iron pipe is the manufacturing process. Iron pipes are manufactured with seams making it possible to be connected to other pipes using connector valves. It also has a larger diameter inside than steel pipes. Steel pipes have to be welded for them to be used in certain industries. Iron pipes are stiffer and have thicker walls. 

  • Abrasion Resistance 

Due to the high volume of graphite present, iron pipes have a higher resistance to abrasion than steel pipes. This is why iron pipes are often used in friction wear mechanisms. 

seamless steel pipe

Which Type of Pipe Is Strongest 

Deciding which pipe is the strongest is often a hassle because not all pipes are applied in the same industries. However, cast iron pipes are known to be extremely strong, heavy, and durable. 

What Is A Steel Pipe Used For 

 Steel pipes are durable, resistant to rust, highly customizable, and easy to install, making them a top pick in several industries which include; 

  • Construction Industry 

Since steel pipes are durable and lightweight, it is often used in the construction industry for residential and commercial buildings. It is used primarily because of its amazing feature of being resistant to corrosion and rust, meaning it won't be requiring replacement or frequent repairs. This is quite important in the plumbing, water, and electrical systems since a break or leak in the steel pipe can be costly and dangerous.

  • Oil and Gas Industry 

Steel pipe can be used in corrosive environments, high and low temperatures, and high pressure. For this reason, it is a top choice for the oil and gas industry, especially in gathering lines, pipes, and pipe trunk lines. Because of its versatility and durability, steel pipes can be used for the unique needs of the industry. 

  • Agriculture Industry 

Steel pipe is often used in the agricultural industry for agricultural fittings due to its ability to withstand pressure and durability. Steel is sometimes mixed with carbon to make a more lightweight but sturdy agricultural fitting. Farmers and agricultural organizations use steel pipes in various ways including tractor engines, fertilizer application, field drainage systems, and several others. 

How Strong Is A Steel Pipe 

The mechanical properties of a steel pipe sometimes vary due to the manufacturing process. However, the average typical yield strength is about 30,000 psi. 

How Many Type Of Steel Pipe are those 

There are four main types of steel pipes. They include; 

  • Carbon Steel Pipe 

  • Stainless Steel Pipe

  • Alloy Steel Pipe 

  • Tool Steel Pipe 

Can you use steel Pipe for water 

Steel pipe can be used for water. They are corrosive resistant and they offer the best hygiene due to their biochemical structure

seamless steel pipe

How Is Steel Pipe Classified 

Steel pipes are often classified according to the method of production, sectional shape, pipe materials, plating characteristics, joining method, and uses. Steel pipes can also be divided into units of special shaped and round steel pipes according to the cross-sectional shape. 

What Materials is Steel Pipe 

Steel is the main material used in the production of steel pipes. Steel is created by adding carbon to iron. 

What Is the Difference Between Steel Pipe and Tube? 

It's often confusing to state the difference between a steel pipe and a tube. They both can be welded or seamless. However, there are some differences between them. A steel pipe is round, while a steel tube can be square, round, oval, or rectangular in shape. Steel pipes are designed to carry gasses and fluids, irrespective of the application. Tubes can also be used to transport fluids, but they are designed for uses in more industries than pipes, including medical, military, aerospace, architecture, and transportation. 

Which is Stronger  Between Steel Pipe and Tubes 

Steel tubes are stronger than steel pipes. Steel tubes have more strength and are more durable than pipes. 

seamless steel pipe

Is Steel Pipe Cheaper Than Steel Tube? 

The production of steel tubes is quite costly due to the need for intense labor, material, and energy. Steel pipes are cheaper than tubes because they have an easier manufacturing process. 

Learn more about Seamless Pipe from our blog: What is seamless steel pipe and how to buy seamless steel pipe? 

For more information, don’t hesitate to use the chat box or send an email to contact us. We will be happy to answer any questions you may have!

Looking for other steel pipes for sale? At Camasteel, we also provide high-quality Galvanized Steel Pipe to you!

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  1. Seamless Steel Pipe review by Sofia on 6/10/2021

    Wow what great product, we love it!

  2. Seamless Steel Pipe review by Sarah on 6/10/2021

    We can't understand how we've been living without seamless steel pipe

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