Flatwound strings with the least tension in *relative* numbers

Oct 25, 2009
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While a very interesting thread is currently compiling an inclusive catalogue of all flatwound strings, I'd like to look for the set of flatwound strings with the least amount of tension but for the same gauge(s) - existing or projected.

Meaning, not comparing a set of TI flats (43-56-70-100) to a set of DR Legend (45-65-85-105) but, say, a set of Dunlop flats (45-65-85-105) to a set of GHS Precision Flats (45-65-85-105). Or alternatively, comparing the tension of TI flats if they were 45-65-85-105 to a set of equivalent gauge.

* I'm arbitrarily taking the 45-65-85-105 gauge as a reference standard. It could be any one obviously.
 
At the same diameter and tuning, a string will have less tension if it weighs less per unit length.

So it must be made of a lighter metal (stainless steel weighs less than nickel),
or it must be made of less metal, i.e., must have gaps between the windings.

The flat with the widest gaps in the outer winding that I'm aware of is Cobalts.
TIJFs (and at least one other but I forgot which) have a non-metal layer (silk), but it's extremely thin (and the outer winding is nickel).
 
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At the same diameter and tuning, a string will have less tension if it weighs less per unit length.

So it must be made of a lighter metal (stainless steel weighs less than nickel),
or it must be made of less metal, i.e., must have gaps between the windings.

The flat with the widest gaps in the outer winding that I'm aware of is Cobalts.

Interesting! So Cobalts must also be quite flexible/pliable for flats given the wider gaps.
 
Angels on the head of a pin sounds very intriguing! Kind of like Lucy in the sky with diamonds.

Might be a good CCM praise band name, now that I think of it.

The expression comes from pointless theological discussions and disagreements that people would have back in the day when they went down a rabbit hole.

It’s like proto-“arguing on the internet”.
 
Some companies do provide tension data. D'Addario has a "String Tension Pro" site that let's you see the values for their string sets. Here's an example output:

String Tension Pro.png



You can go back and forth between unit weight and tension using this (in inch, pound units):

T (Tension) = (UW x (2 x L x F)^2) / 386.4

F = Frequency
UW = Unit Weight
L= Length
 
Some companies do provide tension data. D'Addario has a "String Tension Pro" site that let's you see the values for their string sets. Here's an example output:

View attachment 4172486


You can go back and forth between unit weight and tension using this (in inch, pound units):

T (Tension) = (UW x (2 x L x F)^2) / 386.4

F = Frequency
UW = Unit Weight
L= Length

Interesting. The site even calculates the tension of a pure nickel roundwound or flatwound set, which D'Addario don't make, as far as I know.