Received-SPF: none
 receiver=logan.com; client-ip=216.240.18.37; envelope-from=echristley@att.net
Message-ID: <4CC041F8.7010801@att.net>
Date: Thu, 21 Oct 2010 09:36:56 -0400
From: Ernest Christley <echristley@att.net>
Reply-To: echristley@att.net
User-Agent: Thunderbird 2.0.0.24 (X11/20100623)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: header parts source
References: <list-4521322@logan.com>
In-Reply-To: <list-4521322@logan.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: quoted-printable

I needed some specialty type rod to weld my gear legs.  I called the only=
 company I could find that sold it, and asked=20
for a pound.  They wouldn't sell me an amount that small, but they sent m=
e a marketing sample...one pound of it...for free.

George Lendich wrote:
> Brian,
> That's way too much to have to pay.
> Worst comes to worst, go to a welding shop and buy some from them.
> George (down under)
> =20
> Where did you get the inconel rod? Central welding up here in Washinton=
=20
> wants $35 a pound, minimum order of ten pounds. I've got an inconel=20
> exhaust that is tacked together right now, but can't proceed until I ge=
t=20
> some 625 Inconel rod.
> =20
> Brian Trubee
>=20
>=20
>=20
> Tracy,
> =20
> I used inconel filler rod (which I had to purchase from an aerospace=20
> supply firm in California) and TIG welded my current inconel exhaust.  =

> Welding 625 Inconel was about the same as welding 321 SS, i.e. no=20
> special skills requried.
> =20
> Mark S.=20
>=20
> On Tue, Oct 19, 2010 at 8:47 PM, Tracy <tracy@rotaryaviation.com=20
> <mailto:tracy@rotaryaviation.com>> wrote:
>=20
>     IF you use thick enough material, even mild steel will work.  I use=
d
>     321 for 2 reasons.  You can go thinner with it than 304 and reduce
>     the weight.  I put 900+ hours on a set of headers made from .035 32=
1
>     SS with no signs of deterioration (other than the metal turning a
>     dark color).   321 SS is the nicest welding alloy I've ever worked
>     with.  I tried welding Inconel with no luck at all so I would have
>     needed professional help if I used that.
>=20
>     Tracy
>=20
>=20
>     On Tue, Oct 19, 2010 at 8:22 PM, Jeff Luckey <JLuckey@pacbell.net
>     <mailto:JLuckey@pacbell.net>> wrote:
>=20
>=20
>         I thought that people were commonly using 321 for Rotary exhaus=
t
>         systems
>         because it has a higher temp rating.
>=20
>         It's been a while, but I vaguely remember looking it up, and th=
e
>         max working
>         temps were something like this:
>=20
>         304 =3D 1200F
>         321 =3D 1600F
>=20
>         So, my question is, are people using 304 successfully for Rotar=
y
>         exhaust
>         systems.  If so, that's great, because it's cheaper & more read=
ily
>         available.
>=20
>=20
>=20
>         -----Original Message-----
>         From: Rotary motors in aircraft
>         [mailto:flyrotary@lancaironline.net
>         <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
>=20
>         Jeff Luckey wrote:
>          > Does Columbia now carry 321 stainless.  IIRC, I pinged them
>         about a year
>          > ago and they did not carry 321 stainless=E2=80=A6
>          >
>          >
>=20
>         I also bought bends from Columbia.  Their service and delivery =
was
>         excellent.
>=20
>         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, and
>         the corrosion resistance characteristics of
>         the alloys at elevated temperatures, I couldn't see enough of a=

>         difference
>         to stress over.
>=20
>          >
>          >
>         ---------------------------------------------------------------=
---------
>          >
>          > *From:* Rotary motors in aircraft
>         [mailto:flyrotary@lancaironline.net
>         <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=C2=B0, a flex=

>         joint, and
>          > muffler added to this header.
>          >
>          >
>          >
>          >
>          >
>          > KevinLane Carpentry
>          > www.KevinLaneCarpentry.com
>         <http://www.kevinlanecarpentry.com/>
>         <http://www.KevinLaneCarpentry.com
>         <http://www.kevinlanecarpentry.com/>>
>          >
>=20
>=20
>=20
>         --
>         Homepage:  http://www.flyrotary.com/
>         Archive and UnSub:
>         http://mail.lancaironline.net:81/lists/flyrotary/List.html
>=20
>=20
>         --
>         Homepage:  http://www.flyrotary.com/
>         Archive and UnSub: =20
>         http://mail.lancaironline.net:81/lists/flyrotary/List.html
>=20
>=20
>=20