RD 5

Tubular electrode filled with metal powders (based on chromium, niobium, molybdenum and boron carbides). This
electrode deposits a metal characterized by exceptional hardness and resistance to abrasion combined with shock, far superior to
those of conventional electrodes (as there is very little dilution of the base metal). Deposition essentially composed of very fine
complex carbides of chromium, boron and niobium, embedded in a ferritic matrix. Very good abrasion resistance
mineral, good impact resistance, due to high Niobium carbide content. Temperature-resistant stainless deposit
up to 300°C. Can be used at very low current intensities. Very good metal spread, no slag, very smooth bead,
can only be machined by grinding. Possibility of increasing output by introducing a 2nd electrode into the arc (in this
case, double the recommended current).
Carbon steel recharging of grey cast iron without undercoating, alloy and tool steels (in this case, undercoat
with a 29/9 or 18/8 Mn electrode). Mainly used in public works, agricultural equipment and cement works:
chutes, press screws, mixer blades, bucket teeth and blades, armor plates, scrapers, crusher hammers,
screening grids, screen plates, garbage crusher hammers, etc.

Maintain an arc length of 2 to 5 mm, using a sweeping motion. Hold the electrode perpendicular to the
surface. Do not apply more than 2 to 3 coats.