Welding Equipment and Supplies Filler Metal Selector Guide ASTM No. Grade Product Type of Metal   Recommended Filler Metals (AWS)           SMAW GMAW FCAW A724 A Pressure vessel Q & T steel 9018-M   110T5-K4 A732 1A, 2A, 3A Castings Steel 6012, 6013, 7024, 70S-3, 70S-6 70T-1, 71T-1, 70C-3C, 70C-6M,         7014, 7018   70T-4, 70T-7   4A Castings Steel 9018-M   110T5-K4   5N, 6N Castings Steel 7024, 7018 70S-3, 80S-D2 70T-1, 71T-1, 70T-4, 70T-7, 71T-8,             70C-3C, 70C-6M A734 A Pressure vessel Alloy & Low alloy 8018-B2       B Pressure vessel Alloy & Low alloy 9018-M 80S-D2 110T5-K4 A735 1, 2, 3 Pressure vessel Low C & Alloy steel 9018-M 80S-D2 110T5-K4   4 Pressure vessel Low C & Alloy steel 10018-D2   110T5-K4 A736 2 Pressure vessel Alloy 8018-B2       3 Pressure vessel Alloy 9018-M 80S-D2 110T5-K4   B Pressure vessel Low alloy 7018 70S-3, 70S-6 70T-1, 71T-1, 70T-4, 70T-7, 71T-8,             70C-3C, 70C-6M A737 C Pressure vessel Low alloy 9018-M 80S-D2 110T5-K4 A738   Pressure vessel Alloy 9018-M 80S-D2 110T5-K4 A744 CF-8 Castings Stainless 308 308   CF-8M Castings Stainless 316 316   CF-8C Castings Stainless 347     CF-3 Castings Stainless 308L 308L 308LT-1   CG-8M Castings Stainless 316L, 317L 316L 316LT-1 A757 A2Q Castings Alloy steel 7018   71T-8   B2N, B2Q Castings Alloy steel 8018-C1   81T1-Ni2   B3N, B3Q Castings Alloy steel 8018-C2       C1Q Castings Alloy steel 10018-M       DNDQ Castings Alloy steel 9018-B3       E1Q Castings Alloy steel 11018-M     A765 1 Pressure vessel Low alloy 7018   71T-1, 70T-1, 71T-8   2 Pressure vessel Low alloy 7018-1   71T-1, 70T-1, 71T-8 A771   Tubing Stainless 316H     A782 Class 1 Pressure vessel High strength, 9018-M 80S-D2 110T5-K4       Mn-Cr-Mo   Class 2 Pressure vessel High Strength, 11018-M   110T5-K4       Mn-Cr-Mo   Class 3 Pressure vessel High strength, 12018-M           Mn-Cr-Mo A808   Steel plate High strength, low alloy 7018-1   71T-1, 70T-1, 71T-8 A812 65 Sheet High strength, low alloy 9018-M 80S-D2 110T5-K4   8 Sheet High strength, low alloy 11018-M, 10018-M   110T5-K4 A813 TP304 Pipe Stainless 308 308     TP304H Pipe Stainless 308H       TP304L Pipe Stainless 308L 308L 308LT-1   TP309S Pipe Stainless 309 309     TP310S Pipe Stainless 310       TP316 Pipe Stainless 316 316     TP316H Pipe Stainless 316H       TP316L Pipe Stainless 316L 316L 316LT-1   TP317 Pipe Stainless 317L       TP317L Pipe Stainless 317L       TP321 Pipe Stainless 347       TP347 Pipe Stainless 347     A814   Pipe Stainless Same as A813 A822   Tubing Steel 6010, 6011, 6013     A826 TP316 Tubes Stainless 316H A830   Plates Steel 7018 70S-3, 70S-6 70T-1, 71T-1, 71T-8, 70C-3C, 70C-6M A841   Pressure vessel Steel 7018   71T-1, 70T-1, 71T-8 A851 TP304 Tubes Stainless 308, 308H 308     TP304L Tubes Stainless 308L 308L 308LT-1 A873   Sheet, strip Steel 9018-B3, 9018-B3L