Welding Dissimilar Metals Chart. Dissimilar metal welding DMW has generated a number of technical papers and large detailed filler metal selection tables. When the chemistries are not known our Blue Max 2100 electrode which produces a high ferrite number is commonly used.
Ultrasonic welding is also used for welding dissimilar metals since very little heat is developed at the weld joint. The processes available for joining dissimilar metals are. WWW PHOS-C-WELD and WWW COPP-WELD can also be used for certain dissimilar metal combinations but they are not as versatile as either the silicon- or aluminum bronze alloys.
Two alloys that are well suited for dissimilar metal welding are WWW-A2 BRONZE WELD aluminum bronze AWS A57ER CuAl-A2 and WWW SIL-WELD silicon bronze AWS A57ER CuSi-A.
Many DMWs in the Process Industry do not involve demanding service requirements where special filler metal selection would be in order. Fusion welds and other joining meth-ods. Stainless Steel Filler Metal Usability Classification Type of Welding Current and Position of Welding AWS Classification Welding Current Welding position EXXXX-15 dcep All EXXXX-16 dcep or ac All EXXXX-17 dcep or ac All EXXXX-25 dcep H F. The processes available for joining dissimilar metals are.