X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ew0-f52.google.com ([209.85.215.52] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4521329 for flyrotary@lancaironline.net; Wed, 20 Oct 2010 17:20:22 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.52; envelope-from=msteitle@gmail.com Received: by ewy23 with SMTP id 23so4577522ewy.25 for ; Wed, 20 Oct 2010 14:19:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=YFobOijsHI/zxiVakg8iCSPvdB8GhBN6DJ64RWxRBvI=; b=Nz1h5KznOgBgepU2r/OB+Ryu/ZqWrCXyPmzPSOhAV3MjKoIxVdJa7XbMutmoWZZZaI ODO3CqkOYMKCmChsv0DUElOEmrwRxPj0jCD16Eci9nFbJyLw75c545U9Z2be67xzXWIc vhCiDwEwwcqd86XhdidhoocbFFuUHC5RmXvlI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=GhAjW7VSJB911Il4s51W4xdk+IlaRMYHI+1ePooP0VBI50Uy2rJSCrHLyBVBUE7Fuh UpdYAhgDAarlmNdk4Or4kh831WDJu7+FFz83LpeE0lIbRl2/vnrmtJuvQ9rD6cMkZA5m NWUy9nNuns03SdydOLOOQIjydr/VQtelSAQ0U= MIME-Version: 1.0 Received: by 10.213.7.7 with SMTP id b7mr1034486ebb.30.1287609587726; Wed, 20 Oct 2010 14:19:47 -0700 (PDT) Received: by 10.213.33.131 with HTTP; Wed, 20 Oct 2010 14:19:47 -0700 (PDT) In-Reply-To: References: Date: Wed, 20 Oct 2010 16:19:47 -0500 Message-ID: Subject: Re: [FlyRotary] Re: header parts source From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015174c1ad215f9cb049312f8a8 --0015174c1ad215f9cb049312f8a8 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable George, I was trained by the United States Air Force. While it was great experienc= e and was taught how to weld many different types of metals, I actually welde= d very little exotic metals. However, I have kept up with this skill since getting out of the USAF in 1976. I've found that I have the best results when using good equipment and supplies. So far, nothing has fallen apart i= n the air. ;-) Mark S. On Wed, Oct 20, 2010 at 4:10 PM, George Lendich wrote= : > > Mark, > I have an Inverter for TIG welding SS- although my TIG welding isn't as > good as I would like it to be, so you must have some experience with TIG. > You could have used some parent material to TIG weld the Inconel, if you > had some off-cuts. > George (down under) > > Tracy, > > I used inconel filler rod (which I had to purchase from an aerospace supp= ly > firm in California) and TIG welded my current inconel exhaust. Welding 6= 25 > Inconel was about the same as welding 321 SS, i.e. no special skills > requried. > > Mark S. > > On Tue, Oct 19, 2010 at 8:47 PM, Tracy wrote: > >> IF you use thick enough material, even mild steel will work. I used 321 >> for 2 reasons. You can go thinner with it than 304 and reduce the weigh= t. >> I put 900+ hours on a set of headers made from .035 321 SS with no signs= of >> deterioration (other than the metal turning a dark color). 321 SS is t= he >> nicest welding alloy I've ever worked with. I tried welding Inconel wit= h no >> luck at all so I would have needed professional help if I used that. >> >> Tracy >> >> >> On Tue, Oct 19, 2010 at 8:22 PM, Jeff Luckey wrote= : >> >>> >>> I thought that people were commonly using 321 for Rotary exhaust system= s >>> because it has a higher temp rating. >>> >>> It's been a while, but I vaguely remember looking it up, and the max >>> working >>> temps were something like this: >>> >>> 304 =3D 1200F >>> 321 =3D 1600F >>> >>> So, my question is, are people using 304 successfully for Rotary exhaus= t >>> systems. If so, that's great, because it's cheaper & more readily >>> available. >>> >>> >>> >>> -----Original Message----- >>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On >>> Behalf Of Ernest Christley >>> Sent: Tuesday, October 19, 2010 07:51 >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] Re: header parts source >>> >>> Jeff Luckey wrote: >>> > Does Columbia now carry 321 stainless. IIRC, I pinged them about a >>> year >>> > ago and they did not carry 321 stainless=85 >>> > >>> > >>> >>> I also bought bends from Columbia. Their service and delivery was >>> excellent. >>> >>> I don't see any mention of 321, but I wasn't really concerned about it. >>> Given the diameter of tube we have to use for >>> exhaust flow, and the thickness we need to contain the exhaust pulse, a= nd >>> the corrosion resistance characteristics of >>> the alloys at elevated temperatures, I couldn't see enough of a >>> difference >>> to stress over. >>> >>> > >>> > >>> -----------------------------------------------------------------------= - >>> > >>> > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net= ] >>> > *On Behalf Of *kevin lane >>> > *Sent:* Monday, October 18, 2010 22:03 >>> > *To:* Rotary motors in aircraft >>> > *Subject:* [FlyRotary] header parts source >>> > >>> > >>> > >>> > I have been happy with Columbia mandrel bending. they make their own >>> > parts, family run, and significantly cheaper than burns. >>> > http://www.mandrel-bends.com/catalog/ >>> > >>> > last week I finally got the v-band, another 90=B0, a flex joint, and >>> > muffler added to this header. >>> > >>> > >>> > >>> > >>> > >>> > KevinLane Carpentry >>> > www.KevinLaneCarpentry.com < >>> http://www.KevinLaneCarpentry.com > >>> > >>> >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >> >> > --0015174c1ad215f9cb049312f8a8 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
George,
=A0
I was trained by the United States Air Force.=A0 While it was great ex= perience and was taught how to weld many different types of metals, I actua= lly welded very little=A0exotic metals.=A0 However, I have kept up with thi= s skill since getting out of the USAF in 1976.=A0 I've found that I hav= e the best results when using good equipment and supplies.=A0 So far, nothi= ng has fallen apart in the air.=A0 ;-)
=A0
Mark S.

On Wed, Oct 20, 2010 at 4:10 PM, George Lendich = <lendich@aanet= .com.au> wrote:
=A0
Mark,
I have an Inverter for TIG welding S= S- although my TIG welding isn't as good as I would like it to be, so y= ou must have some experience with TIG.
You could have used some parent mate= rial to TIG weld the Inconel, if you had some off-cuts.
George (down under)
=A0
Tracy,
=A0
I used=A0inconel filler rod (which I had to purchase from an aerospace= supply firm in California) and TIG welded my current inconel exhaust.=A0 W= elding 625 Inconel was about=A0the same as welding 321 SS, i.e. no special = skills requried.
=A0
Mark=A0S.=A0

On Tue, Oct 19, 2010 at 8:47 PM, Tracy <tracy@rotaryaviation.com> wrote:
IF you use thick enough material= , even mild steel will work.=A0 I used 321 for 2 reasons.=A0 You can go thi= nner with it than 304 and reduce the weight.=A0 I put 900+ hours on a set o= f headers made from .035 321 SS with no signs of deterioration (other than = the metal turning a dark color).=A0=A0 321 SS is the nicest welding alloy I= 've ever worked with.=A0 I tried welding Inconel with no luck at all so= I would have needed professional help if I used that.

Tracy=20


On Tue, Oct 19, 2010 at 8:22 PM, Jeff Luckey <JLuckey@pacbell.net> wrote:

I thought that p= eople were commonly using 321 for Rotary exhaust systems
because it has = a higher temp rating.

It's been a while, but I vaguely remember looking it up, and the ma= x working
temps were something like this:

304 =3D 1200F
321 = =3D 1600F

So, my question is, are people using 304 successfully for = Rotary exhaust
systems. =A0If so, that's great, because it's cheaper & more re= adily
available.



-----Original Message-----
From: Rota= ry motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Tuesday, October 19, 2010 07:51
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re: header parts source
Jeff Luckey wrote:
> Does Columbia now carry 321 stainless. =A0= IIRC, I pinged them about a year
> ago and they did not carry 321 stainless=85
>
>

I a= lso bought bends from Columbia. =A0Their service and delivery was
excell= ent.

I don't see any mention of 321, but I wasn't really con= cerned about it.
Given the diameter of tube we have to use for
exhaust flow, and the thic= kness we need to contain the exhaust pulse, and
the corrosion resistance= characteristics of
the alloys at elevated temperatures, I couldn't = see enough of a difference
to stress over.

>
> ---------------------------------------= ---------------------------------
>
> *From:* Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net]
> *On Behalf Of *kevin lane
> *Sent:* Monday, October 18, 2010 22:= 03
> *To:* Rotary motors in aircraft
> *Subject:* [FlyRotary] h= eader parts source
>
>
>
> I have been happy with C= olumbia mandrel bending. =A0they make their own
> parts, family run, and significantly cheaper than burns.
> http://www.m= andrel-bends.com/catalog/
>
> last week I finally got the v= -band, another 90=B0, a flex joint, and
> muffler added to this header.
>
>
>
>
><= br>> KevinLane Carpentry
> www.KevinLaneCarpentry.com <http://www.KevinLaneCarp= entry.com>
>



--
Homepage: =A0http://www.flyrotary.com/
Archive and UnSub:
= http://mail.lancaironline.net:81/lists/flyrotary/List.html


--
Homepage: =A0http://www.flyrotary.com/
Archive an= d UnSub: =A0 http://mail.lancaironline.net:81/lists/flyrotary= /List.html



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