Proveedor de tubos de acero inoxidable Wenzhou Kaixin China
Las tuberías de acero inoxidable no solo tienen diferentes materiales, como 210 acero inoxidable, 304 acero inoxidable, 316 acero inoxidable, etc., pero también tenemos tubos soldados de acero inoxidable y tubos sin soldadura de acero inoxidable. Hay una cierta diferencia entre los dos, literalmente la diferencia entre costura y costura, Pero en la realidad, hay una diferencia significativa en este proceso.
There are differences in the manufacturing process temperature. The manufacturing process of stainless steel seamless pipes is to punch a hole in the stainless steel billet at a temperature of 2200 ° F. At this high temperature, tool steel becomes soft and spiral formed from the hole through stamping and drawing. The disadvantage of stainless steel pipes produced by this process is that the wall thickness of the pipes is uneven and the eccentricity is high. In addition, the wall thickness difference of seamless pipes is larger than that of welded pipes. Stainless steel welded pipes are made from precise cold-rolled sheets, and this manufacturing process results in a very small tolerance on the wall thickness of the pipe, and the wall thickness of the entire circumference is very uniform. This is why welded pipes are better than seamless pipes.
In addition, there are differences in chemical composition between the two, as the steel composition for producing seamless pipes only meets the basic requirements of astm. The steel used in the production of welded pipes contains chemical components suitable for welding, such as silicon, sulfur, manganese, oxygen, and elements mixed with triangular ferrite in a certain proportion, which can produce a weld melt that is easy to transfer heat during the welding process, so that the entire weld seam is fully welded. Por lo tanto, the manufacturing process requirements for welded pipes will be higher, and the cost will be higher. Steel pipes lacking the above chemical components will produce unstable factors, leading to quality problems in stainless steel pipes. Just like seamless pipes, various unstable factors may occur during the welding process, making it difficult to weld firmly and thoroughly. So for welded and seamless pipes, we need to have a certain understanding in order to make easy choices, because different manufacturing processes and steel requirements can lead to price differences, and certain judgments need to be made when purchasing. Foshan Hongguan Stainless Steel is a professional manufacturer of stainless steel pipes of various specifications, with a large stock warehouse to meet your urgent needs for goods.