How to Use Seamless Steel Pipes Correctly

The seamless steel pipe is a transport pipe with a very high degree of stability. It has a relatively high reliability and a long service life. Now, the pipe material produced by brand-new technology is mainly composed of two parts. One of them is the sensor that directly touches the medium transported inside the pipe material and the upper end has a signal converter.

Now we often meet common seamless steel pipes, which are used based on the principle of electromagnetic induction. For customers, they should buy seamless steel pipes. Before using such a delivery pipe, the pipe should be connected with the pipe first. Nowadays, pipe and pipe connection methods exist in all kinds of different ways in various professions.
 
The first is the use of the flange connection. This use of flange connection method is relatively traditional. The seamless steel pipe at both ends can be connected. When flanges and pipes connect, only the flange at both ends and the bolt used on the pipe can be fixed.
 
As for the selection of this device method, it basically can be a one-way device. The sensor volume limit of this connection method pipe should be smaller, so this kind of pipe is only suitable for use in some relatively small volume. Another method of installing seamless steel pipes is to add joints.
 
The planning of the wall thickness of seamless steel pipes is relatively wide, which can achieve the wall thickness of small diameters and large diameters. However, the length is generally limited (only a few manufacturers can produce super long tube). The wall thickness of stainless steel welded pipes can be relatively thin. It has a large diameter and a small wall thickness and a small diameter and a small wall thickness. Theoretically speaking, the longer the long roll is, the longer the welded pipe can produce.
 
Overall, the thicker the seamless pipe, the thinner the welded pipe. In terms of uniformity of wall thickness and concentration, the stainless steel welded pipe is better than the stainless steel seamless pipe. Because the thickness tolerance of the surface of cold rolled plates is relatively uniform, the deformation is uniform in the forming process. However, the weld is convex. Different companies and specifications have different welding high requirements. In particular, it can be welded first and then it will be cold drawn or cold rolled.
 
In the process of seamless rolling, there are some problems such as uneven thickness and concentricity. However, the roundness is better than welding. The uniformity of stainless steel welded pipes is better. The surface quality is better. Expanding the pipe function is better. The uniformity of function of cold-rolled plate is better than that of pipes.
 
The welded pipe is generally used for online solutions. The heat treatment is uniform, and the function is more stable. However, there is no heat treatment process in the low-end stainless steel welded pipes on the market now. Therefore, the quality is very different. The stainless steel seamless pipe is sampled in different directions on the same pipe. The function is not the same. Some may be larger. In heat treatment of seamless pipes, bundle of heat pipes have uneven heating and inconsistent cooling rate.
 
Where can the general seamless pipes be used?

Seamless steel pipes for core drilling (GB3423-82) are used for diamond core drilling drill pipes, core rods, casing seamless steel pipes. Oil drilling pipes (YB528-65) are seamless steel pipes used for both ends of oil drilling inside or outside thickening.
 
Shipboard carbon steel seamless steel pipes (GB5213-85) are used to make shipboard class I pressure pipes system, classⅡpressure pipes system, boiler and superheater seamless steel pipes.

The working temperature of the wall of seamless carbon steel pipes shall not exceed 450℃, and that of the wall of seamless alloy steel pipes shall exceed 450℃. Seamless steel pipes (GB3088-82) for car axle bushing tube are made of high quality carbon structural steel and alloy structural steel hot rolled seamless steel pipes for car axle bushing pipes and drive axle housing pipes.
 
High-pressure tubing for diesel engine (GB3093-2002) is a seamless cold drawn steel tube for high-pressure pipe in diesel injection system. Seamless steel pipes with fine inner diameter for hydraulic and pneumatic cylinders (GB8713-88) are cold-drawn or cold-rolled seamless steel pipes with fine inner diameter for hydraulic and pneumatic cylinders.