With the rapid development of economy, the demand for stainless steel pipes is increasing. With the development of science and technology and the improvement of technology, stainless steel pipes are becoming more and more popular, and the road of stainless steel pipes will gradually move towards high precision. Compared with the end users of stainless steel pipes, more people express their willingness to accept stainless steel precision pipes because they can accept more applications. However, ordinary pipes are still limited to a few applications. Why do you say that? Let's take a look at the difference between stainless steel precision pipe and ordinary pipe.

1, tolerance of pipe diameter size

The most fundamental difference between stainless steel precision pipe and ordinary pipe lies in accuracy. Ordinary stainless steel pipes are usually used for decoration and industry, and the diameter tolerance is small, and the accuracy of diameter tolerance is generally above 0.1mm. Precision stainless steel pipes pay more attention to the requirement of diameter tolerance, which is generally controlled within 0.05 mm Because of its high accuracy, it can be applied to many fields except decoration and industry, such as mechanical field, aviation field, electronic and electrical field, automobile field and so on.

2. Surface treatment

The surface treatment of stainless steel precision pipe is more demanding than that of ordinary stainless steel pipe. The surface of precision stainless steel pipe has the following requirements: the surface of the pipe body has no scratches and scars; The wall thickness is even and smooth, and the nozzle is complete without burr; The inner wall is smooth, there is no leakage welding sand hole at the weld, and the surface brightness is above 200 meshes. Usually, the surface of ordinary pipes is rough and needs to be treated twice. It is better than ordinary stainless steel pipe in appearance.

Step 3 perform

The common material of ordinary stainless steel pipes is 20 1, and 304,316l is rarely used if there are slight requirements. The commonly used materials of stainless steel precision pipes are 304 and 3 16L, which are superior to ordinary stainless steel pipes in material properties. Before leaving the factory, precision stainless steel pipes need to undergo many mechanical properties tests, such as hardness test, bending test and compressive strength test. The later mechanical processing performance is often better than that of ordinary pipes.

The above three points are basically the intuitive differences between stainless steel precision pipes and ordinary pipes, not to mention the comparison of other roundness and verticality factors. Therefore, stainless steel precision pipes are better than ordinary pipes in all cases, so why is there such a big market for ordinary stainless steel pipes? In fact, the production requirements of precision stainless steel pipes are high, and the equipment cost is also high. Before there is a greater breakthrough in technology. The price factor is also their obvious difference.