50100 is a great steel to work with. The chromium addition really made an impact from my experience . Fantastic for hamons with the manganese content. thickness – .145 inches length – 12 inches width – 3 3/8 inches Carbon: .9-1.10 % Chromium : .4-.6% Manganese : .25-.45% Silicon : .20-.35% Phosphorus : < .025% Sulfur : < .025%