Minimum Maillion Size for Rigging
Posted: Jun 20, 2011 8:09 pm
I'm curious what size Maillion Rapide others would consider a safe minimum for rigging purposes. I generally always choose stainless for permanent rigging and I was a bit surprised when I saw that SS appears to be rated quite a bit stronger than galvanized for the same size. Although a 5 mm SS Maillion looks pretty thin it has a safe working limit of ~1,000 lbs and a breaking strength of ~5,000 lbs. I believe that makes it similar to the failure strength of most 3.5" x 3/8 bolts. So a 2 bolt anchor rigged with a pair of 5 mm Maillions would hold up to ~10,000 lbs. It seems most people use 7 mm or even 9 mm for connecting ropes to bolt hangers. I believe some may be concerned with the small radius of a 5 mm Maillion reducing rope strength. Other opinions?
http://www.onrope1.com/pdf/2006/Maillon_Rapides.pdf
http://www.onrope1.com/pdf/2006/Maillon_Rapides.pdf