MMA electrode with acid rutile flux on matching 312 stainless steel core wire. Recovery is about 100% with respect to the core wire, 65% with respect to the 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