RD 5

Tubular electrode filled with metal powders (carbides of Cr and Nb). This electrode produces a deposit characterized by an exceptional hardness and resistance to abrasion, combined with moderate impact. Higher resistant than conventional electrodes (because of the low dilution with the base metal). Deposit essentially composed of complex carbides of Cr and Nb, in an austenitic matrix. Good resistance to mineral abrasion and impact due to the very fine presence of Nb carbides. Rust proof deposit resists to temperature up to 300°C. Use with low current. No slag, only machinable by grinding, possibility to increase the deposition rate by introducing a second electrode in the arc (in this case, double the recommended current). Surfacing of C steels, of grey cast iron without buffer layer, alloyed steels and tool steels (in this case, carry out a cushion layer with 29/9 or 18/8 Mn electrodes).

General applications: For civil engineering, cement industries, agriculture for press screws, mixing blades, jars teeth