Japanese steel

Sep 2009
90
NC United States
How many times was a katana folded again? I forgot the answer, i think its a few thousand, but im not sure. thanks
 

okamido

Forum Staff
Jun 2009
29,885
land of Califia
Around a dozen typically.

This is about right, anywhere from 10-20 folds. I think NC, your are thinking about the layers formed by the fold. I not going to do the math, but since 10 folds produces about 500,000 layers, you could assume somewhere around 650,000 layers with twelve folds. Maybe their is someone here who is good at math and wants to do calculations.;)
 

Toltec

Ad Honorem
Apr 2008
7,923
Hyperborea
Layers
2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768

Well that's up to 15 Folds

After about 16 folds you're in dager of reducing the quality of the steel with each additional fold and after about 24 all the carbon's been folded out of the steel and you're left with a lump of iron.
 
Sep 2009
90
NC United States
This is about right, anywhere from 10-20 folds. I think NC, your are thinking about the layers formed by the fold. I not going to do the math, but since 10 folds produces about 500,000 layers, you could assume somewhere around 650,000 layers with twelve folds. Maybe their is someone here who is good at math and wants to do calculations.;)
Yeah ok that settles it up. Yeah i remember there was a high number in there, just not sure. thanks guys, also i found that after the 16th fold that was basically making it weak, intresting stuff. was there certain additives added to the steel to make it stronger?