What is the difference between stainless steel welding and stainless steel seamless pipe

Stainless steel pipes not only have different materials, such as 210 stainless steel, 304 stainless steel, 316 stainless steel, etc., but also have stainless steel welded pipes and stainless steel seamless pipes. There is a certain difference between the two, literally the difference between seam and seamless, but in reality, there is a significant difference in this process.
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. By hierdie hoë temperatuur, gereedskapstaal word sag en spiraalvormig uit die gat deur stamp en teken. Die nadeel van vlekvrye staalpype wat deur hierdie proses vervaardig word, is dat die wanddikte van die pype ongelyk is en die eksentrisiteit hoog is. In addition, die wanddikteverskil van naatlose pype is groter as dié van gelaste pype. Vlekvrye staal gelaste pype word gemaak van presiese koudgewalste velle, en hierdie vervaardigingsproses lei tot 'n baie klein toleransie op die wanddikte van die pyp, 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. Therefore, 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. Dus vir gelaste en naatlose pype, ons moet 'n sekere begrip hê om maklike keuses te maak, omdat verskillende vervaardigingsprosesse en staalvereistes tot prysverskille kan lei, en sekere oordele moet gemaak word by die aankoop. Foshan Hongguan Stainless Steel is 'n professionele vervaardiger van vlekvrye staalpype met verskillende spesifikasies, met 'n groot voorraad pakhuis om in jou dringende behoeftes vir goedere te voorsien.