I have written to Wicks to find out what is up with the 4 X 4 X 1/8 angle. They have 1/4, but no way you would use that. If this is no longer available, what will current builders use to make the brackets that we always used this stuff for?
See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC -------Original Message------- From: Martindale Family List-Post: krnet@list.krnet.org Date: 02/13/07 18:19:58 To: KRnet Subject: Re: KR> 6063 aluminum Actually I've often wondered about the strength thing with aluminium. Refer http://www.capral.com.au/product_info/alloy.pdf for a nice summary. In Australia, the common alloy over the hardware Bunnings type bench is 5005 H34 for rolled sheet and 6060 T5 for extruded angle with Ultimate Tensile Strengths (UTS) of 135-180Mpa (depends on thickness) and 150Mpa respectively. 6060 seems interchangeable with 6063 and both are termed architectural. 6061 T6 appears a lot stronger at 260Mpa however it is not as corrosion resistant, does not appear to come in sheets and seems to harden (more fatique prone?) with age. I just wonder whether we would ever have a need to use the higher strengths of 6061...wouldn't the 5005/6060 be more than enough? 135-180Mpa is still bloody strong in my view and certainly it is more easily available over here and a lot cheaper. I've used 5005 for my fuel tanks and 6060 for all the bracketry in my bird except the elevator hinges where RR plans specifiy 6061 T5 or equivalent. John Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 (H) 61 2 66869075 (W) mobile: 0403 049990 email: johnja...@optusnet.com.au web: www.members.optusnet.com.au/johnjanet/Martindale.htm ----- Original Message ----- From: "Mark Langford" <n5...@hiwaay.net> To: "KRnet" <kr...@mylist.net> Sent: Tuesday, February 13, 2007 11:28 PM Subject: Re: KR> 6063 aluminum > Brian Kraut wrote: > >> Be leary of any metal you get from Home Depot or Lowes if you plan on >> doing >> anythng structural with it. I am not 100% sure what alloy they carry, >> but >> it is pretty bright and corrosion resistant which means it is most likely >> a >> weaker alloy than 6061. > > The aluminum that's sold at Home Depot and that kind of store is usually > 6063, which looks like polished 6061. ..........................snip _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
