Wire from nickel alloys: welding wire type castomag 45656 (composition:..... 95.7 wt% nickel, 0.014% carbon mss, the mss silicon 0.457%, 0.405% magnesium mac iron 0.034 wt%, titanium 3.07% mss., copper 0.006 wt.%, aluminum 0.075 wt.%, cobalt 0.008 wt.%, 0 sera.