What is seamless hot-rolled pipe
Rolled steel is a very common material in industry. This is not surprising, since steel can vary significantly depending on the manufacturing method and chemical composition.
Seamless steel pipes are extremely high-quality rolled metal that is used for completely different purposes. The absence of seams allows for higher structural integrity, which in turn increases the wear resistance and service life of the material. You can order rolled metal or learn more about it here: https://www.absolut-metall.com.ua/trubi/truba-besshovnaya-goryachekatannaya/.
Stages of pipe production
The absence of seams is the main feature of this product. Therefore, it is not surprising that the production of seamless pipes is characterized by the presence of several specific stages, during which the rolled metal obtains the desired properties.
So, for the production of seamless hot-rolled pipes it is necessary:
- Sew round blanks . Using special equipment, steel circles are stitched, which makes the products hollow inside.
- Next is the rolling stage. For this purpose, a special mandrel sleeve is used. Thus, the diameter and thickness of the pipe are reduced to the required value.
- Next, hot finishing occurs. These are several technical procedures that improve the performance characteristics of rolled metal. After running, calibrating and reducing, the product finally becomes ready.
Main advantages of seamless hot-rolled pipes
Seamless hot-rolled pipes are primarily characterized by higher cost. This is not surprising, since these products require the use of expensive equipment for stitching and other processing.
However, the main advantages of such rolled metal include:
- high strength due to the absence of seams ;
- high resistance to temperature changes;
- wear resistance;
- long service life;
- large assortment;
- availability of products from different grades of steel.
The technological process involves the use of different steel. In this way, the buyer can get exactly the products that best suit his requirements. The most common steel grades for seamless hot-rolled pipes include:
- 45;
- 35;
- 20;
- 30KhGSA ;
- 09G2S;
- 17 GS;
- 20K;
- 40X.
Where seamless hot-rolled pipes are used
The characteristics of hot-rolled pipes can differ significantly from each other, which contributes to the widespread use of such metal products. The products are mainly used in the following industries:
- aircraft construction;
- mechanical engineering;
- automobile construction;
- oil industry;
- chemical and food industry;
- construction.
When choosing, the main thing is to pay attention to the grade of steel, since the main characteristics of rolled metal will depend on it .