Return-Path: Received: from r1.name2host.com ([64.35.113.48] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with SMTP id 3204896 for flyrotary@lancaironline.net; Tue, 04 May 2004 04:50:48 -0400 Received: (qmail 60101 invoked from network); 4 May 2004 08:50:41 -0000 Received: from adsl-216-101-149-124.dsl.snfc21.pacbell.net (HELO rapunzel) (fly@bewersdorff.com@216.101.149.124) by r1.name2host.com with SMTP; 4 May 2004 08:50:41 -0000 From: "Marko Bewersdorff" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Exhausts: 304 vs 321 Date: Tue, 4 May 2004 01:43:51 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C43179.40874FF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C43179.40874FF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit high carbon cheap stainless is somewhat magnetic. Marko -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Finn Lassen Sent: Monday, May 03, 2004 8:04 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Exhausts: 304 vs 321 Bring a magnet. SS should not be magnetic. I imagine that if you go with walls thicker than .035 it won't matter if it's 304 or 321. My 0.035 321 header elbows are still holding up nicely after some 400+ hours. Finn Scott wrote: Hello All... This has probably been discussed many times over, but I can't seem to find an answer in the archives to the following... For a NA 6 port, 13b, why choose 321 stainless steel over 304 for the exhaust? Or Inconel 625 over 321? Is it a comfort level or a need? Also, it seemed that 321 .035 was living on the edge and that most were using in the .060+ range. Is this the prevailing wisdom? Finally, is visually possible to determine what is 304 and what is 321? I ask this as I am going over to a used parts race shop and they just have a pile of exhaust pipe, no rhyme or reason to the pile. Thus, if it really didn't matter on the SS alloy I could just pick the pipes I needed and hack and slash as necessary. Thanx!!! Many thanks to all who posted pics of their coils and water pump surgeries!!!! -Scott __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover Homepage: http://www.flyrotary.com/ Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_000C_01C43179.40874FF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

high=20 carbon cheap stainless is somewhat magnetic.

Marko

-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Finn=20 Lassen
Sent: Monday, May 03, 2004 8:04 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Exhausts: 304 vs = 321

Bring a magnet. SS should not be = magnetic.
I=20 imagine that if you go with walls thicker than .035 it won't matter if = it's=20 304 or 321.

My 0.035 321 header elbows are still holding up = nicely=20 after some 400+ hours.

Finn

Scott wrote:

Hello All...

This has probably been discussed many times over, but
I can't seem to find an answer in the archives to the
following...

For a NA 6 port, 13b, why choose 321 stainless steel
over 304 for the exhaust?  Or Inconel 625 over 321? =20

Is it a comfort level or a need?  Also, it seemed that
321 .035 was living on the edge and that most were
using in the .060+ range.  Is this the prevailing
wisdom?

Finally, is visually possible to determine what is 304
and what is 321? =20

I ask this as I am going over to a used parts race
shop and they just have a pile of exhaust pipe, no
rhyme or reason to the pile.  Thus, if it really
didn't matter on the SS alloy I could just pick the
pipes I needed and hack and slash as necessary.

Thanx!!!  Many thanks to all who posted pics of their
coils and water pump surgeries!!!!

-Scott



=09
	=09
__________________________________
Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo! HotJobs =20
http://hotjo=
bs.sweepstakes.yahoo.com/careermakeover=20

 Homepage:  http://www.flyrotary.com/
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