WELDING ELECTRODE Russian patent published in 1998 - IPC

FIELD: hand arc welding; electrodes for welding low-alloy heat resistant steel structures; repair of defects in steel articles. SUBSTANCE: electrode has core with carbon content not exceeding 0.09% and coating applied to core of the following composition, mas.%: marble, 24-32; fluorspar, 10-18; titanium dioxide or turile, 1.5-7; aluminium oxide, 3-7; mica, 0.5-3; ferrum powder (carbon-content not exceeding 0.03%), 23-35; ferromanganese or manganese, 2-5; ferrotitanium, 5-10; ferrosilicon, 2-6; ferrochromium or chromium, 2-5; ferromolybdenum or molybdenum, 2-5. EFFECT: enlarged operating capabilities. 5 cl, 2 tbl