GemmellG
Materials
- Jun 28, 2012
- 89
Trying to understand the difference in heat input recorded in WPS & PQR I am reviewing some welding procedures for an upcoming project. The WPS Heat input is higher than the PQR. My take on this is the heat input calculated during the welding of the test coupon & recorded on the PQR. There is a percentage add to the actual heat input & recorded in the WPS. I have reviewed ASME Sec IX QW-409 & can’t find any information regarding this.