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Inspecting Standing Rigging
I remember the collapse of a public pool ceiling killing a number of peoples
in switzerland some years ago. The hang up ceiling was supported by hidden 304 type (18-8) S-hooks behind and out of sight for inspection. I recall the report stating that the chloride laden pool air and humidity exposed the hooks causing this intercristaline corrosion leading to sudden failure to support loads. As I understand the engineering world in Europe took note and better suited s/s alloys are utilised now. If rigging for ocean going boats is still made from 304, I think it amounts to criminal negligence to continue to equip boots with these essential structural members in a maritime environment where plenty of chloride (salt) are present. Having worked with both 304 , 316 and others the price difference of those different alloys were not really the mainconcern but mainly to get the right stock for the task on hand. I am not clear what the nitronic s/s alloy is made of, but if it is more suitable why bother with 304 at all. |
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