Carbon steel maximum operation temperature
Carbon steel maximum operation temperature
(OP)
Dear all!! It is generally said that carbon steel parts can nor work at tempeartures higher than, approx. 800 F due to carbide phase may be converted to graphite, but I do not know the influence of time in that process, I mean, is there a minimum necesary time for that process to happen? That is to say, would it be allowable for a carbon steel to work over 800F during a short period of time? any recommmendation about this issue?
Thakns for any help.
Thakns for any help.





RE: Carbon steel maximum operation temperature
This information is needed to give you a better answer to your question.
RE: Carbon steel maximum operation temperature
RE: Carbon steel maximum operation temperature
Another technical issue is that some codes ( B31.1) do not permit one to overheat the pipe or vessel above the value for which the code provides an allowable stress, for any period of time.For most carbon steels, that means 800 F is not permitted ever.
Also, some states are now imposing required overheat trips based on max permitted operating temperature ( NC, for example).
RE: Carbon steel maximum operation temperature
RE: Carbon steel maximum operation temperature
As Metalguy's comment, short times will have no problem about graphitization in carbon steel.