Heat exchanger materials of construction
Heat exchanger materials of construction
(OP)
Hi. What is the most reliable shell and tube material to suit a tube pass temperature of 540 deg C and 1900Kpa H2 gas.
Shell temp is around 440 deg C and 1040Kpa process Steam. [ unit is SMR]
Please review attachment. Assuming it is visable.
Thanks
Shell temp is around 440 deg C and 1040Kpa process Steam. [ unit is SMR]
Please review attachment. Assuming it is visable.
Thanks





RE: Heat exchanger materials of construction
RE: Heat exchanger materials of construction
Where will this replacement unit be located ?
-MJC
RE: Heat exchanger materials of construction
see API 571
Regards,
roker
RE: Heat exchanger materials of construction
Where is the unit located does that make a difference?.
All our equipment is ASME and only API for some storage tanks.
Thanks
RE: Heat exchanger materials of construction
I am not a materials specialist but have some observations due to spending years in the heat exchanger industry. I know the A 106 material in the shell is not good enough for this service at these temperatures and pressures. The minimum is C-1/2 MO. The tube side minimum is 1 1/4cr-1/2 MO.
RE: Heat exchanger materials of construction
Do you agree Incaloy 800 H would definately be an over spec for my temps and pressures. We have past experience with cracks in heat affected zones on the Incaloy. Its imperative that good PWHT is conducted after any fabrication work.
RE: Heat exchanger materials of construction
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Heat exchanger materials of construction
I believe SA-387 could be used for the tube side if it is at least a grade 11. The shell side alloys couild be SA-204 plate or SA-335 P1 pipe,
RE: Heat exchanger materials of construction
BW