Anchoring & Mooring

The above image challenges the theory that high tensile G70 chain is brittle after regalvanizing. The regalvanized samples (top and bottom) have been tested to break. They stretched 20 percent before failing, more than some G30 chain does before failing.

Regalvanizing G70 Chain

The possibilities of ultra-high tensile chain just got more interesting.

As high tensile G70 chain becomes more prevalent in the marine market, Practical Sailor has been busy testing the limits of this material, which has been used for many years in other industries. One question we have raised in the past is whether G70 chain can be safely regalvanized (see PS June 2014, “Making Sense of Marine Chain Standards”). Chain is expensive and regalvanizing helps to extend its life. If G70 chain can’t be regalvanized, as we have suggested in the past, this needs to be factored into the initial cost.

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