Attention was concentrated on the use of the shielded metal arc (SMAW) process. 25%Cr/20%Ni and 18%Cr/12%Ni/3%Mo consumables (Type 310 and 316 respectively) were utilized. It is concluded that avoidance of microfissuring cannot be guaranteed by control of welding variables alone. GTA remelting and pulsed SMA welding can reduce the problem, but are of limited practical application. Microfissuring is best overcome by optimization of consumable composition.