Avesta P5 description: AVESTA P5 is a molybdenum-alloyed wire of the 309MoL type, which is primarily designed for surfacing low-alloy steels and for dissimilar welding between stainless steels and low-alloy steels, ensuring a high resistance to cracking. It can also be used for welding high strength steels such as Hardox and Armox. When used for surfacing, the composition is more or less equal to that of ASTM 316 from the first run.