Re: [Harp-L] Turbo Slide Harmonica

[Vern <jevern@xxxxxxx>]

Yes, it does does depend on the type of alloy.  

Chromium is the principal alloying element in SS.  Other alloying elements include carbon, nickel, manganese, silicon, sulphur, molybdenum, and aluminum.

The "2xx" and "3xx" types of stainless steel also nickel, have an "Austenitic" structure, cannot be hardened by heat treating, and are not magnetic.

The "4xx" grades contain little or no nickel, have a "ferritic" or "martensitic" structure, most can be hardened by heat treating, and are magnetic.

The fact that the Seydel reeds are magnetic indicates that they are of the 4xx series alloys.  Type 416 has better machinability than other 4xx steels and is my wild guess for the material of SS reeds.  

Vern


On Oct 26, 2010, at 9:28 AM, Jerry Deall wrote:

> Only very high quality surgical stainless, it depends on the grade of stainless 
> 
> Thanks Jerry, 
> http://www.thebluesambassadors.com/ 
> 
> ----- Original Message ----- 
> From: "Chris Reynolds" <c_reynolds2571@xxxxxxxxx> 
> To: harp-l@xxxxxxxxxx 
> Sent: Tuesday, October 26, 2010 10:18:22 AM 
> Subject: Re: [Harp-L] Turbo Slide Harmonica 
> 
> I thought stainless steel was non-magnetic. 
> Chris 
> 
> 
> http://www.blowyourbrassoff.com 
> http://www.builderofstuff.com 
> 
> 
> Just a man, his shop, and a long list of unfinished projects... 
> 
> 
> 
> 
> Re: [Harp-L] Turbo Slide Harmonica 
> Posted by: "Paul Bowering" paul_bowering@xxxxxxxxx 
> Mon Oct 25, 2010 9:34 pm (PDT) 
> 
> 
> Amazing. At least in theory. One short clip isn't enough to tell if it can be 
> made to play really musically but it sure looks interesting. Push the slide 
> first then blow and you get a stable, spot on 'missing note'. Or, blow then 
> push 
> 
> 
> the slide and you bend it down slowly. 
> 
> Without valves I'm guessing and hoping the timbre of the bent notes are close to 
> 
> 
> the unbent notes. 
> 
> Future refinements look to allow for raising the pitch on bends. Just think what 
> 
> 
> could be done if you mix and match. I'd configure it to lower most notes except 
> Blow 3 which I'd have set to raise a whole tone: a Richter/Paddy combo in one 
> harp. You might also be able to significantly expand the chords available. 
> 
> Paul