{"id":5227,"date":"2009-05-16T01:42:25","date_gmt":"2009-05-16T06:42:25","guid":{"rendered":"https:\/\/setsail.com\/?p=5227"},"modified":"2009-05-18T10:44:58","modified_gmt":"2009-05-18T15:44:58","slug":"exterior-use-of-6061-alloy","status":"publish","type":"post","link":"https:\/\/setsail.com\/exterior-use-of-6061-alloy\/","title":{"rendered":"Exterior use of 6061 alloy"},"content":{"rendered":"<div class=\"question\">\n<p>Hi Steve,<br \/>\nAs a long time builder, user and owner of aluminum alloy boats perhaps you can answer this question: How does the odd bit of raw 6061, above the waterline , but on the exterior, fare visually over time in comparison to 5086? In particular, we\u2019re building a Dix 43 Pilot House and I\u2019m looking at using a 3\u2033 half pipe extrusion as a rub rail down each side and it is only available in 6061. The hull plating is 5086 H116. The alternative is to buy vastly more expensive 5086 schedule 80 pipe and rip it on the table saw. I don\u2019t mind spending when it\u2019s justified but don\u2019t want to waste money. We love the look and practicality of unpainted alloy, but my experience in non-salt environments with 6061 is that it can look pretty nasty after awhile. Perhaps it\u2019s just a matter of an occasional scotchbrite rub-down.<br \/>\nThe other place we\u2019ll be using 6061 is for the rudder shaft . It\u2019s a spade rudder with a 115mm diameter shaft and Jefa self aligning bearings. Appearance is not an issue here, and I think the 6061-T6 will be stronger than 5086 . Do you think corrosion could be an issue on the 6061 rudder shaft? We will have a comprehensive anode system.<br \/>\nThanks so much-I love the new site format!<\/p><\/div>\n<p><!--more--><\/p>\n<div class=\"answer\">\n<p>6061 is OK above the waterline in most applications. The 5000 series is tyically stronger in welded condition. For rudder stocks we prefer 5000 series but 6061 can be used, you just have to account for the difference in mechanical\u00a0 properties when welded.<\/p>\n<p>There will be some visual difference as the two alloys oxidize differently.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Hi Steve, As a long time builder, user and owner of aluminum alloy boats perhaps you can answer this question: <a class=\"read-more\" href=\"https:\/\/setsail.com\/exterior-use-of-6061-alloy\/\">&#8230;Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,10],"tags":[],"class_list":["post-5227","post","type-post","status-publish","format-standard","hentry","category-yacht-construction-forum","category-tech-talk"],"_links":{"self":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts\/5227"}],"collection":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/comments?post=5227"}],"version-history":[{"count":0,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/posts\/5227\/revisions"}],"wp:attachment":[{"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/media?parent=5227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/categories?post=5227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/setsail.com\/wp-json\/wp\/v2\/tags?post=5227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}