HELLO FREINDS ,
I HAVE DESIGNED A VESSEL WITH PD5500 CODE. ITS A NORMAL VERTICAL VESSEL WITH 36.3 BAR INT.
TAN TAN LENTH IS 26000 mm.
WITH 65 INT DESIGN TEMP.
I HAVE DEISGN THE VESSEL WITH 36MM THICKNESS.

BUT JUST FOR THE HYBROTEST PROPOSE SADDLE IS TO BE PROVIDED.WHICH WILL NOT BE WELDED WITH VESSEL.
I HAVE PROVIDED 4 SADDLE AS THE LENTH IS MORE ..(VESSEL VOLUMES IS 200KL)
WHILE DESIGNING FOR SADDLE I GET ERROR OF
* Computed Impact Test Temp. RITT: -105C
ERROR: Impact Temperature < -60.00 C Extrapolated - not allowed !*

SO WHAT SHOULD BE DONE TO AVOID THIS ERROR.
THSI ERROR IS GENERATED ONLY WHEN I DESIGN SADDLE IF NO SADDLE IS DESIGN NO ERROR ...

KEWAL...