used it for years on offshore carbon pipework needs good technique to get root pen at bottom of pipe
prone to suckback if hot pass too hot on bottom , has better corrosion resistance , and better charpys for low temp small bore pipes can be lightly purged for perfect roots
fine for most steel gadgee jobs
the best carbon tig wire for normal pipework is filarc pz6500 it gives superb roots with very little effort