316L, nominal diameter 1700, what is the selection standard?
Thread Content
For a 316L pipe with a nominal diameter of 1700, which standard should be used? Can only 630 be achieved according to GB12771 standard? Can GB/T4237 be used instead? Also, any notes on the outer diameter series?
Could someone help solve this? Are there any experts around?
In GBT12771-2000, the maximum size is DN600; for the new standard GBT12771-2008, the requirements regarding outer diameter and wall thickness are based on GBT21835. You should take a look at GBT21835-2008 – the maximum size for stainless steel welded pipes under this standard is DN1800. As for whether pipe manufacturers can produce such large pipes, it’s best to consult with agents or the technical managers of pipe factories. I have never seen stainless steel pipes of such large sizes before.