Views:32 Author:Site Editor Publish Time: 2018-07-16 Origin:Site
Precision seamless steel pipe is a high-precision steel pipe after cold rolling or cold drawing; full name: cold-rolled or cold-drawn precision seamless steel pipe. Because the inner and outer walls of precision seamless steel tubes have no oxidation layer, high pressure and no leakage, high precision, high smoothness, no deformation of cold bending, flaring, flattening without cracks, etc., they are mainly used to produce pneumatic or hydraulic components, such as Cylinders or cylinders are all made of seamless tubes. The chemical composition of precision seamless steel pipe is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.
The difference between precision steel pipe and seamless steel pipe
1. The obvious difference with the seamless steel pipe is: high dimensional accuracy, which can reach 0.05mm.
2. The surface roughness of the inner and outer diameter of the precision steel pipe is high, and the customer can directly use it without processing; and the ordinary seamless steel pipe requires the customer to perform latheing, polishing and other processing.
1. The outer diameter is smaller.
2. High precision can be produced in small batches.
3. The cold drawn product has high precision and good surface quality.
4. The cross-sectional area of steel pipes is more complicated.
5. The performance of steel pipe is superior and the metal is dense.
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The biggest difference between seamless steel pipes and other long strips is that there are no seams around them, and the steel pipe section is hollow. Due to the different cross-sectional shapes, they are often classified into circular steel tubes and heterogeneous steel tubes. From the actual use efficiency, of course, the round tube type steel tubes are more common. What are the uses of the seamless steel pipe to the low?
When it comes to the use of seamless steel pipes, we are most familiar with the fluid transportation of natural gas, water and other daily life. In addition to these common and well-known natural gas and water transportation, seamless steel pipes are also widely used to transport oil, gas and certain solid materials. Pipeline transportation realized by seamless steel pipes facilitates people's modern life and greatly reduces the transportation cost of natural resources.
Second, because of the seamless steel tube hollow, its quality, much lighter than solid steel tube, it is only natural that the more economical and practical, and so on, such as automotive transmission shaft, such as the oil drill pipe, bicycle frame serves as a important structures and components manufacturing. It also reduces unnecessary resource waste and reduces the total weight of finished products.
In addition, the seamless steel pipe is often used as a raw material for the ring metal parts, which not only saves a lot of complicated processes, but also greatly reduces the steel loss in the production process and saves production costs. This kind of processing principle is not difficult to understand. It is similar to the cutting of the spinach. A knife can be cut quickly to get a ring small ring part to minimize the loss.
The above is a seamless steel pipe with a circular cross section. This circular seamless steel pipe is not perfect. It has poor bending resistance and cannot withstand large forces. Therefore, it is in the framework and furniture of agricultural machinery. When used, the seamless steel tube is forged into a square or rectangular shape to increase the compressive strength of the seamless steel pipe.