SPLN SUX Posted July 21, 2007 Report Share Posted July 21, 2007 I need one big enough to cut and exhaust flange out of. Also need 1.75" ID tubing, 16guage is good. Mandrel bent U bends preferable. Link to comment Share on other sites More sharing options...
Guest Ponyfreak Posted July 21, 2007 Report Share Posted July 21, 2007 I have a lot of 321 bends but am not about to sell them. You need to use mild steel for flanges as they do not warp as bad as 321 or 304. Use 309 rod to weld the mild steel to the 321 pipe and 347 rod to weld the 321 to 321. Always backpurge with 100% argon. Link to comment Share on other sites More sharing options...
NTHER91 Posted July 21, 2007 Report Share Posted July 21, 2007 you jsut went way over his head WAY over Link to comment Share on other sites More sharing options...
Guest Ponyfreak Posted July 23, 2007 Report Share Posted July 23, 2007 you jsut went way over his head WAY over Are you the "big" guy that was at Dynotune motorsports a month ago tuning the busa? Link to comment Share on other sites More sharing options...
AJ Posted July 23, 2007 Report Share Posted July 23, 2007 here in Ohio http://www.stainlessworks.net/cart/index.php?cPath=95&osCsid=141eddb3500057b6a6fc7aa87882a31c http://www.burnsstainless.com/ Link to comment Share on other sites More sharing options...
SPLN SUX Posted July 30, 2007 Author Report Share Posted July 30, 2007 I have a lot of 321 bends but am not about to sell them. You need to use mild steel for flanges as they do not warp as bad as 321 or 304. Use 309 rod to weld the mild steel to the 321 pipe and 347 rod to weld the 321 to 321. Always backpurge with 100% argon. mild steal flanges seem to warp and crack worse than even 304, and 321 is is much more risiliant to fatiuge and cracking in high heat than 304... at least thats the experience i had with the Z24. i was looking at Burns, as they are the most kick ass exhaust parts manufacturer ever. They are just so pricey though... i though ti might see if anyone had any extra scrap that they wated to get out of the garage. Link to comment Share on other sites More sharing options...
Tinman Posted July 30, 2007 Report Share Posted July 30, 2007 mild steal flanges seem to warp and crack worse than even 304 Sorry, but I needed to correct this before anyone gets the wrong idea. Mild steel is by far the best readily available material to make header flanges from. Cracking is not an issue with mild steel and potential to warp is much less than any of the stainless alloys. Link to comment Share on other sites More sharing options...
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