Avesta P5 description: AVESTA P5 is a highly alloyed low carbon electrode corresponding to AWS A5.4 E309MoL-17. The electrode is designed for dissimilar welding between stainless and mild or low-alloy steels but can also be used for overlay welding, providing an 18 Cr 8 Ni 2 Mo deposit from the very first layer. It can also be used for welding highstrength steels such as Hardox and Armox.