Issues with welded pipes and seamless pipes
Thread Content
GC1 pipes, if welded pipes are used. Is it the same as the mechanical properties of seamless pipes?
For the same material, the performance of welded pipes is lower than that of seamless steel pipes; you can refer to standards GB3091 and GB8163 for this information. Although their areas of application differ, it is still clear that seamless steel has stronger mechanical properties than welded pipes
It’s different. At least there are differences in the weld coefficient.
The performance of welded pipes is lower than that of seamless steel pipes
Tubes specified in GB/T3091 and GB/T8163 shall not be used in GC1 grade pipelines
Can overall forming and steel plate rolling and welding forming be the same? (Can a naturally beautiful person be the same as one who has undergone artificial enhancement?) I’ve never seen welded pipes used in high-pressure, low-temperature, or highly toxic environments, let alone in GC1 applications.
GC1 pipes can only be made of seamless steel tubes. Welded steel pipes cannot be used.
You can calculate it by yourself; depending on the mechanical properties you need, welded pipes should be used for GC1 pipes with large diameters.
This post was last edited by ZXY_ZVKP on 2020-8-6 08:49. It is widely used, and its use is allowed both domestically and internationally. To give a simple example, aren’t pressure vessels all welded?