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Re: Welding Cast Iron
Posted by Price [Email] (more from Price) on Mon, 24 Jan 2011 22:00:14
In Reply to: Re: Welding Cast Iron, DrewP, Mon, 24 Jan 2011 09:54:56
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As far as the O2 sensor bung not seeing stress, the stress induced by the repeated heating and cooling cycles are more than you would initially think. Especially if you have a mild steel bung welded to a cast iron manifold. The different materials will expand at different rates which may cause cracking issues.
If you are going to weld it, use a filler rod with a high nickel content. That makes the weld a little more ductile than it would otherwise be and will lessen the chance of thermal cracking. I have tig welded cast iron before with no issues, but just be aware of the risks before you go ahead with it.
-Price
posted by 98.149.21...
Posts in this Thread:
- Opinions wanted - Adding O2 and pyro bungs to manifold, ryan
, Sat, 22 Jan 2011 14:46:35- Decision, ryan
, Thu, 27 Jan 2011 12:38:52 - Re: Opinions wanted - Adding O2 and pyro bungs to manifold, Nick Taliaferro
, Mon, 24 Jan 2011 07:28:54 - Re: Opinions wanted - Adding O2 and pyro bungs to manifold, lms, Sat, 22 Jan 2011 15:23:01
- Re: Opinions wanted - Adding O2 and pyro bungs to manifold, ryan
, Sat, 22 Jan 2011 17:19:17- Welding Cast Iron, DrewP, Sun, 23 Jan 2011 13:11:06
- Re: Welding Cast Iron, ryan
, Sun, 23 Jan 2011 18:34:20- Braze Cast Iron, derf, Wed, 26 Jan 2011 09:40:28
- Re: Welding Cast Iron, DrewP, Mon, 24 Jan 2011 09:54:56
- Re: Welding Cast Iron, Price, Mon, 24 Jan 2011 22:00:14 <-- Viewing This Message
- What O2 instrument are you going to use?, saabsince 93b
, Mon, 31 Jan 2011 08:49:28- Re: What O2 instrument are you going to use?, ryan
, Mon, 31 Jan 2011 20:11:48- Re: What O2 instrument are you going to use?, saabsince 93b
, Tue, 1 Feb 2011 08:02:59- PLX, DrewP, Tue, 1 Feb 2011 10:50:26
- Re: PLX, saabsince 93b
, Tue, 1 Feb 2011 18:26:25- Daytona, DrewP, Wed, 2 Feb 2011 09:08:06
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