WRC-1992 constitution diagram for stainless steel weld metals : a modification of the WRC-1988 diagram

To increase the scope and accuracy of Ferrite Number (FN) prediction in stainless steel weld metal and related dissimilar metal joints, a modif ication of the Weld ing Research Council 1988 diagram (WRC-1 988 diagram) is proposed. The proposed VVRC1992 diagram includes a coefficient for Cu in the Ni equivalent, thereby removing a tendency for the WRC-1 988 diagram to overestimate the FN of weld metals when the Cu content is high. Also, the axes of the WRC-1 992 diagram can be extended (as in the Schaeffler diagram) to predict di lut ion effects in dissimilar metal joints.