SA 516 Gr70 Tube Sheet
SA 516 Gr70 Tube Sheet
(OP)
Dear All,
I would like to confirm that is there any restriction for SA 516 Gr 70 to use Tube Sheet as per latest revision of ASME section VIII?
Now I need to use this material as tube sheet. But my ASME U stamp inspector suggest me to use forge material only.But because of other reason, I still want to use this SA 516 Gr 70.
When I checked in ASME section VIII, I could not find that this material should not be used tube sheet.If somebody know that there is any paragraph such a reason of I can't use it, please help me and tell which area I should find it. For me I need to firm the reason to talk with inspector. Thanks.
I would like to confirm that is there any restriction for SA 516 Gr 70 to use Tube Sheet as per latest revision of ASME section VIII?
Now I need to use this material as tube sheet. But my ASME U stamp inspector suggest me to use forge material only.But because of other reason, I still want to use this SA 516 Gr 70.
When I checked in ASME section VIII, I could not find that this material should not be used tube sheet.If somebody know that there is any paragraph such a reason of I can't use it, please help me and tell which area I should find it. For me I need to firm the reason to talk with inspector. Thanks.





RE: SA 516 Gr70 Tube Sheet
Will you be welding on this tube sheet? I don't have a code book right in front of me but I do believe that Section VIII requires either a PT or MT around the outside peripheral edge of tube sheets constructed of plate material before and after welding - the NDE is to check for possible laminations in the plate material. Could this be what your inspector is concerned with? This wouldn't be a requirement if you were using a forging. Check the UW and UHX sections.
RE: SA 516 Gr70 Tube Sheet
Thanks a lot numberfive.
RE: SA 516 Gr70 Tube Sheet
RE: SA 516 Gr70 Tube Sheet
RE: SA 516 Gr70 Tube Sheet
Regards,
Mike
RE: SA 516 Gr70 Tube Sheet
RE: SA 516 Gr70 Tube Sheet
RE: SA 516 Gr70 Tube Sheet
restriction on SA-105 as a tubesheet is specified in material specification SA-105 in SEction II Part A.
Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN
RE: SA 516 Gr70 Tube Sheet