ASME Definitions, Consumables, Welding Positions ASME has adopted their own designation for welding processes, which are very different from the ISO definitions adopted by EN24063.
Straight polarity = Electrode -ve Reverse polarity = Electrode +ve ASME F Numbers
ASME A Numbers These refer to the chemical analysis of the deposited weld and not the parent material. They only apply to welding procedures in steel materials.
Note the welding progression, (vertically upwards or downwards), must always be stated and it is an essential variable for both procedures and performance qualifications. Welding Positions For Groove welds:-
Basically there are three inclinations involved.
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