Newbie2211
Mechanical
- Jul 5, 2022
- 12
Hi guys!
I'm here again.
I'm organizing PWHT requirement using excel.
I have to write only one thickness on a excel table.
My team leader said the table makes people so confused because of two thickness(control thickness, nominal thickness) on one table.
Example of the table is like this.
-Example(from B31.1)-
P No. Thickness PWHT Temperature
=========================================================================
P-15E 13Tn<Pipe<=50Tc 705~775℃
(P-91,92)
cf)Tn means nominal thickness and Tc means control thickness
So I decided convert control thickness to nominal thickness.
The reason of converting is PWHT temperature and PWHT exemption requirement by thickness.
Should I multiple 1.125(considering manufacuring tolerance) by control thickness to convert to nominal thickness?
I'm here again.
I'm organizing PWHT requirement using excel.
I have to write only one thickness on a excel table.
My team leader said the table makes people so confused because of two thickness(control thickness, nominal thickness) on one table.
Example of the table is like this.
-Example(from B31.1)-
P No. Thickness PWHT Temperature
=========================================================================
P-15E 13Tn<Pipe<=50Tc 705~775℃
(P-91,92)
cf)Tn means nominal thickness and Tc means control thickness
So I decided convert control thickness to nominal thickness.
The reason of converting is PWHT temperature and PWHT exemption requirement by thickness.
Should I multiple 1.125(considering manufacuring tolerance) by control thickness to convert to nominal thickness?
