MMA electrode with acid rutile flux on matching 312 stainless steel core wire. Recovery is about 100% with respect to core wire, 65% with respect to whole electrode.
Specification
AWS A5.4: E312-17
BS EN 1600: E 29 9 R 32
BS 2926: 29.9AR
DIN 8556: E 29 9 Mn R 21
29.9 SUPER R (Limarosta312) 4.00x350xCAN
Metrode 29.9.SUPER R Electrodes for Dissimilar Welding, E312-17 299SR