X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=HLeBLclv c=1 sm=1 tr=0 a=yNAc3stJaIGHKUkZAXg/zw==:117 a=4RaTjCEQgPjkDUvYMt8vvA==:17 a=IkcTkHD0fZMA:10 a=7mUfYlMuFuIA:10 a=pGLkceISAAAA:8 a=7g1VtSJxAAAA:8 a=Ia-xEzejAAAA:8 a=jg7Te6tgUgzwue9ILSgA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=grOzbf7U_OpcSX4AJOnl:22 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Richard Sohn res12@fairpoint.net" Received: from smtp687.redcondor.net ([208.80.206.87] verified) by logan.com (CommuniGate Pro SMTP 6.2.5) with ESMTPS id 11318035 for flyrotary@lancaironline.net; Fri, 29 Jun 2018 15:00:53 -0400 Received-SPF: none receiver=logan.com; client-ip=208.80.206.87; envelope-from=res12@fairpoint.net Received: from mailproxy6.neonova.net ([137.118.40.136]) by smtp687.redcondor.net ({f50aeeea-7a14-4dd3-bdda-1246754c15b3}) via TCP (outbound) with ESMTP id 20180629190034717_0687 for ; Fri, 29 Jun 2018 19:00:34 +0000 X-RC-FROM: X-RC-RCPT: Received: from [192.168.2.8] (dflo-66-243-230-100.gtcom.net [66.243.230.100]) (Authenticated sender: res12@fairpoint.net) by mailproxy6.neonova.net (Postfix) with ESMTPA id 1969A601F2B for ; Fri, 29 Jun 2018 15:00:02 -0400 (EDT) Subject: Re: [FlyRotary] alloy conversion To: Rotary motors in aircraft References: Message-ID: <5955d5dc-6b7d-d9ab-2fab-16572ea65d5a@fairpoint.net> Date: Fri, 29 Jun 2018 14:00:19 -0500 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-DLP-OUTBOUND: 137.118.40.128/25 X-MAG-OUTBOUND: greymail.redcondor.net@137.118.40.128/25 356 T6 as far as I know has been used mainly for cylinder head castings. My side housing castings of 356 were heat treated at the foundry. Never had a problem machining. If I had to make new side housings I probably would machine them out of 6061 T6. Material strength is not an issue in such a selection. Basically the difference is 6061(copper content)  is extruded and 356 (silicon content) is cast. FWIW. Richard On 6/29/2018 12:51 AM, Neil Unger 12348ung@gmail.com wrote: > Can anyone tell me how cast alloy 356 T6 compares to 6061 T6?  My > local foundry tells me that the "yanks" are way behind in alloy > classification.  Here I can get AA601 cast, but it comes out like > rubber to turn.  IT has to be heat treated to T6 before it can be > turned.  Once heat treated it is 7/8 the strength of 6061 T6. Any > thoughts??  Neil. > > > -- > Homepage:  http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > -- Richard Sohn 8029 County HWY 1087 DeFuniak Springs, FL 32433