AWS A5.9:1993

This specification prescribes requirements for the classification of bare stainless steel wire, strip, composite metal cored, and stranded welding electrodes and rods. The chromium content of these filler metals is not less than 10.5 percent and the iron content exceeds that of any other element. (Footnote 1) For purposes of classification, the iron content shall be derived as the balance element when all other elements are considered to be at their minimum specified values.