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I've shortened inconel studs before. it was surprisingly easy, but that was before any heat cycles, so I don't know ( I hear the stuff gets harder with heat)
Originally Posted by hornetball
(Post 1165047)
From what I've seen, they mostly fab in stainless. ?? I don't think I've ever seen a mild steel turbo manifold. Maybe we need pics of op's manifold.
Mild steel that is subject to fastening forces (ie, threads) will let go at elevated temps. It's a physical property. It's why we use inconel studs. The turbo mounting flange threads see basically the same temps and forces. bottom line - there are tons of mild manifolds, and in fact what tim and abe put together is more often mild vs stainless. in fact, I've heard many fabricators mention mild being much better than stainless in these applications. |
Originally Posted by 18psi
(Post 1165361)
I've shortened inconel studs before. it was surprisingly easy, but that was before any heat cycles, so I don't know ( I hear the stuff gets harder with heat)
I think there's a misunderstanding or confusing here, but too tired to properly correct it. bottom line - there are tons of mild manifolds, and in fact what tim and abe put together is more often mild vs stainless. in fact, I've heard many fabricators mention mild being much better than stainless in these applications. |
Originally Posted by Savington
(Post 1165276)
Part of the issue is likely the stud being too long (not specifically designed for your mani)
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Originally Posted by Savington
(Post 1165359)
I wouldn't do it. I doubt the Inconel would play nice with the stainless turbo nuts. Cut the studs down, re-Resbond, and try it again.
If that doesn't skin the cat, what flavor of Inconel is used to make the studs? If I ef it up, you can sell me another set of studs. |
Originally Posted by supersuckers
(Post 1165519)
If that doesn't skin the cat, what flavor of Inconel is used to make the studs? .
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Originally Posted by Gt2560rMiata
(Post 1165433)
Which manifold are they designed for ? Your studs seem to have an extra 2-3 threads before the shank more than the original studs that come with a begi manifold
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Originally Posted by Savington
(Post 1165552)
It's our flavor, from our supplier.
Inconel 600: Solid solution strengthened Inconel 625: Acid resistant, good weldability. The LCF version is typically used in bellows. Inconel 690: Low cobalt content for nuclear applications, and low resistivity Inconel 713: Newly developed alloy Inconel 718: Gamma double prime strengthened with good weldability Inconel 751: Increased aluminium content for improved rupture strength in the 1600 °F range Inconel 792: Increased aluminium content for improved high temperature corrosion properties, used especially in gas turbines Inconel 939: Gamma prime strengthened with good weldability |
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