THE Materials Oracle
Join Date: Feb 2006
Location: Finally... home :-)
Bikes: Univega Alpina 5.1 that became a 5.9, that became a road bike... DMR TrailStar custom build
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'Lugs' was perhaps the wrong word, but in principle that's as close as I could describe them.
304's only strengthened by cold work, and deep-freezing and cold work, both of which are undone by the heat cycle of welding or brazing.
I'm still wondering if cast stainless lugs wouldn't be better for what you're attempting. They are readily available, in a number of simple and ridiculous geometries, which would give you some degree of acoustic modulation.
I'm casting around offcut holders for 414, 415, 422, 431 stainless tubing, and maybe even random tubes in 15-5, 13-8 kinda thing. I'll see what they're coming back to me with. Might see if there's any ludicrously small bits of APX4 around.
What if you were to go loco and do this the other way round from some road frame manufacturers and make these brazed on 'luggettes' from nont-stainless, higher strength steel and have them painted, with polished tubes? I wonder how that would look...