Return-Path: Received: from marvkaye.olsusa.com ([205.245.9.210]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with SMTP id AAA10342 for ; Thu, 17 Sep 1998 21:42:58 -0400 Message-Id: <3.0.3.32.19980917214147.00da1514@olsusa.com> Date: Thu, 17 Sep 1998 21:41:47 -0400 To: lancair.list@olsusa.com From: Marvin Kaye Subject: Re: Anodizing In-Reply-To: <19980917225010.AAA7984@truman.olsusa.com> X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Posted for Guy Buchanan : Marv, Some typically used aircraft aluminum alloys: Alloy Yield Ult. Endur. % elon. Galv. Price ----- ----- ---- ------ ------- ----- ----- 2024-T4 47 68 20 19 ~0.85 $3.71 6061-T6 40 45 14 17 ~0.85 $2.35 7075-T6 73 83 23 11 ~1.03 High Source: Machinery's Handbook 23 I don't use any other aluminum alloys except in exotic applications where I might use Al-Li, Al-Be, or SiC reinforced Al. Don't paint anodized parts simply because it's not necessary and because nothing sticks to anodizing anyway. Talk to your anodizer about all the options. For marine I use Type III, which is thicker than Type II but limits your color options. For working parts I specify teflon impregnation which makes the parts glossy and slick. Guy Buchanan Buchanan & Newcom