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silly question time
when is chain past its sell by date.
ok you fit the new chain and its 100% the day its fitted.
its in a protected marina.
so is the chain scrap at 80% 70% 60% .what???
steve h
Views: 136
Replies to This Discussion
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Permalink Reply by Bill Gardner on
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If chain is gr. 100 and used in rigging it has to be certified once a year with a metal stamped tag, by a designated/certified inspection service.
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Permalink Reply by A.. Parnell on
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Need more info like what size diameter how much weight strain is being alone, potential shock loads, etc. Is this for moorings ?
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Permalink Reply by steve henshaw on
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ok vessels up to 75ft
1/2inch chain
steve h
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Steveman ok I get the picture now I like to use 3/4" galvanized chain long length that way when the working chain wears down to 1/2" you still have some protection for unexpected events like big storms and what ever else the marine world throws at it and you still have your vessel with a degree of safety. If you start out with 1/2" you end up with 1/4" hummm not where I would chose to be for my vessels investment, liability etc. not to mention your name will be on what ever you do. Ok good luck.
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Well believe it believe it not, this is the argument I am having now, having lost the job some 20yrs ago over the same thing.
new owners you see.
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Permalink Reply by AL Birch on
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inspect annually, and when any part of any link has lost a third of its thickness then its time to replace it, or sooner if bad pitting or corrosion has set in....................................
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Any riggers or manufacturers handbook will provide specs/tolerances on iron, steel and silicon/bronze-etc. Chain if kept clean and dry 'keeps' vertually forever.There are very few silly questions and this isn't one of them. Google crosby rigging.
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Know exactly what your saying when new
But these chains just never leave the water till they break, that’s why I change my own YES and do not leave it to marina divers.
Steve h
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If you use Crosby make sure its crosby not gunnebo or other, for accurate ratings.
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Permalink Reply by PAUL JOSEPH SHAW on
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Chain is scrap at 70% WLL
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Yep so if you were to start out with 3/4" when it got down to 1/2" in diameter it would be ready for a change out. Not just starting out with 1/2".
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