Magnetic 316 wire

[Douglas]

Ahoy John ,,, getting good quality wire is harder than you think .

Each batch of raw wire before it is wound into 1 X 19 , can be suspect .

If you have only one outside strand showing corrosion , ( I think it is called , "Barber Pole" ) ,,, like rust corrosion , would you open up the strands to inspect the core wound wires , too , or would you assume that there may also be a corroded wire in the core windings , as well ?

I found that Barber Pole rusting effect on my 316 SS 1 X 19 rigging wire , too , but cleaning the outside with pickling paste (nitric / hydrofluoric/ phosphoric acid combos) that cleaning did not go into the core wires,,,,, eventhough the cable looked fine , ie: bright and no rust , on the outside ,,,, later I found out the inside core wires were v rusted , Ouch !

There is v good reason that knowledgable surveyors recommend to replace all SS structural fittings after 10 years , use , in warm salt water environments .