Modern steels like the UHB20C reedsteel I use are excellent. It shears very cleanly compared to straight 1095 spring steel and has the highest fatigue strength of any carbon steel. Supplied at Rockwell C 60 it is hard enough.
Hi Dana, from what I read, UHB-20C and 1095 are approximately equivalent (about 1% carbon, 0.25% silicon, 0.45% manganese), so I'm guessing the different properties you're getting in the steel you're using are mainly down to the heat treatment?
Hi Alex, from a purely theoretical point of view - granting that sometimes such a view might be too simplified - I don't think so. Both the Young's (Elastic) Modulus and density of both alloys are essentially the same, regardless of their heat treatment. Thus, the ratios of these two properties are essentially the same, and so, I'd expect their acoustic results to be the same, when fashioned into reed tongues of the same geometry.
Unless of course the geometries significantly differ, which is possible, since there are more than one geometries that can produce the same pitch. Thus, the material of construction is not the only thing to consider in comparing the sound of two different tongues. One must also consider their geometries, which I suppose complicates the issue quite a bit.
Edited by ttonon, 23 January 2018 - 08:58 AM.