seamless vs welded steel pipe

seamless vs welded steel pipe
seamless vs welded steel pipe
seamless vs welded steel pipe
seamless vs welded steel pipe
seamless vs welded steel pipe
HDT steel
Delivery time
7-15 days
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In stock
Steel pipe is open on both ends and has a hollow section, the length and the surrounding of the larger steel, according to the production methods can be divided into seamless steel pipe and welded steel pipe, steel pipe specification with overall dimensions (such as the diameter or length) and the wall thickness, said its size range is very wide, from small diameter capillary until several meters in diameter, large diameter pipe. Steel pipe can be used in pipeline, thermal equipment, machinery industry, petroleum geological exploration, chemical industry and other aspects.

1.What is welded steel pipe?


As the picture shows, this is a close-up of the steel pipe, and this is the carbon steel pipe. You can obviously see that the steel pipe has a welded seam, so this is a welded steel pipe.

Welded steel pipe, also known as welded pipe, is made of steel plate or strip after crimping forming welded steel pipe. Welded steel pipe production process is simple, high production efficiency, but the general strength is lower than seamless steel pipe. The blank used for welding steel pipe is steel plate or strip.

2.What is seamless steel tube?


As you can see, these are five seamless tubes. If you look inside it, it's monolithic, there's no weld joints, so it's seamless.


Seamless steel tubes are steel tubes made of a single piece of metal with no welds on them. This kind of steel tube is formed in one body, in the production is directly rolled billet, so it has a very good high pressure resistance advantage, it has hot rolling, cold rolling, cold drawing, extrusion and other construction methods.


3.What is the difference between welded steel pipe and seamless steel pipe?

1.outside surface

Seamless steel tube can be seen from the outer surface, the whole body has no gap.

The welded steel pipe has a welding gap.


2. Welded steel pipe and seamless steel pipe Price are different.

The price of seamless steel pipe is generally higher than that of welded steel pipe.


3. Welded steel pipe and seamless steel pipe have different application.

Seamless steel tubes are generally used in factories; Welded steel pipes are commonly used in construction.


4. Welded steel pipe and seamless steel pipe have different Performance.

The pressure resistance of seamless steel tube is higher than that of welded steel tube.


4.What are the characteristics of welded steel pipes?


The picture shows steel pipes stacked in a vacant lot, waiting to be transported. Black is carbon steel tube with visible weld joints inside.

The product is continuously manufactured online, and the thicker the wall, the more units invested and the more smelting equipment, the lower the input-output ratio.

The process of the product determines its advantages and disadvantages, general welding steel pipe precision is high, uniform wall thickness, can be arbitrary size. Therefore, it embodies its economy and aesthetics in high precision, medium and low pressure fluid applications.

5.What are the advantages of seamless steel tube?

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As is shown in the picture, steel pipes are stacked up for shipment. These steel tubes are formed in one body, and are directly rolled billets in production, so it has a very good advantage of high pressure resistance.


Compared with solid steel such as round steel, seamless steel tube has the same bending and torsional strength, lighter weight, is a kind of economic steel.

It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel scaffolding used in construction and other circular parts made of steel pipe, which can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing time, and has been widely used in the manufacture of steel pipe.


6.Steel pipe in Life

Seamless steel tubes are widely used. The general purpose seamless steel pipe is rolled by common carbon structural steel, low alloy structural steel or alloy structural steel, the most production, mainly used for conveying fluid pipes or structural parts.


According to different welding methods, it can be divided into arc welding pipe, high frequency or low frequency resistance welding pipe, gas welding pipe, furnace welding pipe, bandi pipe, etc.


Electric welded steel tube: used for oil drilling and machinery manufacturing.


Furnace welding pipe: can be used as water gas pipe, straight welded pipe for high pressure oil and gas transmission; Spiral welded pipe is used for oil and gas transportation, pipe pile, bridge pier and so on.


7.About HDT tubing Welded steel pipe and seamless steel pipe

HDT Tubing is Welded steel pipe and seamless steel pipe manufacturer and supplier china. Our main products are Welded steel pipe and seamless steel pipe.

There are too many differences between welded steel pipe and seamless steel pipe. Our process of producing welded steel pipe and seamless steel pipe is also different. If you come to our company to purchase welded steel pipe and seamless steel pipe, we will give you professional suggestions and the lowest advantageous price. Let's help you gain a competitive advantage in the market.

HDT Tubing company adheres to the business tenet of "Quality First, Credit First" and the corporate philosophy of "Unity, Hard Work, Innovation", and is committed to creating and realizing a dynamic corporate management model and an international quality management system, introducing international advanced equipment, and using mature technology. We are a professional steel pipe manufacturer, if you have the demand of steel pipe, please feel free to contact us, we will serve you wholeheartedly.


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Name: Randall W.        time:2022-05-09 10:40:14
Good seamless steel pipes! Worked fine!

Name: Cowan T        time:2022-04-21 10:56:01
Exactly what I needed! I‘ve been looking for favorable seamless steel pipes for a long time!

Name: Walker        time:2022-04-19 13:37:24
The service and the priceing was fantastic. They deliver the seamless steel pipe promptly.

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