1x7 wire for rigging

[benz]

I have had a sufficient quantity of galvanised 1x7 (I think that's what you call it--it's seven preformed solid wires twisted together) wire made available for rigging my boat, and at no cost other than picking it up. Is 1x7 suitable for boat rigging? If it is, I can save a bundle on buying wire, and perhaps put that money toward Sta-lock fittings, and thus avoid having to splice that stuff, which feels pretty stiff.
Thanks,
Ben