Avesta FCW P12-PW description: AVESTA P12-PW is a nickel base type wire primarily intended for welding the nickel base alloys 625 and 825 and 6 Mo steels such as Outokumpu 254 SMO. Weldability is good in all welding positions and the flux composition ensures excellent arc stability, very little spatter, a smooth weld surface and selfreleasing slag.