Dostawca rur ze stali nierdzewnej Wenzhou Kaixin Chiny
Stainless steel pipes not only have different materials, such as 210 stainless steel, 304 stainless steel, 316 stainless steel, itp., 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.
Istnieją różnice w temperaturze procesu produkcyjnego. Proces produkcji rur bez szwu ze stali nierdzewnej polega na wybijaniu otworu w kęsie ze stali nierdzewnej w temperaturze ok 2200 ° F. W tej wysokiej temperaturze, stal narzędziowa staje się miękka i spiralnie uformowana z otworu poprzez tłoczenie i ciągnienie. Wadą rur ze stali nierdzewnej wytwarzanych w tym procesie jest to, że grubość ścianek rur jest nierówna, a mimośrodowość duża. 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. 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. 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, i przy zakupie należy dokonać pewnych osądów. Foshan Hongguan Stainless Steel to profesjonalny producent rur ze stali nierdzewnej o różnych specyfikacjach, z dużym magazynem zapasów, aby zaspokoić Twoje pilne potrzeby dotyczące towarów.