![](/mwf/attachments//avatars/9792-4844.jpg)
does anyone know and could you briefly explain what the following filler metal designations mean? i've never seen fillers called this way before. thanks.
1.6 The following shall be used as a guide for filler metal qualification range:
TEST FILLER METAL RANGE
F1 F1
F2 F1 and F2
F3 F1 thru F3
F4 F1 thru F4
F5 F5
F6 F6
TEST FILLER METAL RANGE FOR RANGE FOR GMAW AND
SMAW GTAW
F21 F21 F21 thru F24
F22 F22 F21 thru F24
F23 F23 F21 thru F24
F24 F24 F21 thru F24
TEST FILLER METAL RANGE
F31 F31
F32 F32
F33 F33
F34 F34
F35 F35
F36 F36
F37 F37
F41,42,43,44, orF45 F41 thru F45
F51 F51
F61 F61
F71 F71
F72 F72
No F No. - List specific Product