Welding Standard Asme _hot_ -

A record of test coupon welding and mechanical test results. It the WPS. A PQR is not a WPS – it is evidence that a proposed weld joint can meet required properties.

Section IX assigns P-Numbers to base metals (e.g., P-1 for carbon steel, P-8 for 304 stainless). Welding P-1 to P-8 is a dissimilar metal joint requiring a special PQR. welding standard asme

End of Report