engineermat
Mechanical
- Mar 17, 2008
- 47
Guys, I have a welding question need your comments.
A vessel is impact tested. The maximum heat input in PQR is 16.8KJ/cm. The maximum heat input in WPS is 25.2KJ/cm.
In ASME IX QW-409.1
An increase in heat input, or an increase in volume of weld metal deposited per unit length of weld, over that qualified.....
Based on ASME IX, the increase (25.2-16.8=8.4) is less than the qualified (16.8KJ/cm). We do not need re-qualified the WPS. Am I right?
Thanks.
A vessel is impact tested. The maximum heat input in PQR is 16.8KJ/cm. The maximum heat input in WPS is 25.2KJ/cm.
In ASME IX QW-409.1
An increase in heat input, or an increase in volume of weld metal deposited per unit length of weld, over that qualified.....
Based on ASME IX, the increase (25.2-16.8=8.4) is less than the qualified (16.8KJ/cm). We do not need re-qualified the WPS. Am I right?
Thanks.