SK Steel vs Aogami #2

Detailed metallurgical comparison between Carbon Tool Steel and Blue Paper Steel #2.

SK-STEEL

SK Steel

Carbon Tool Steel

Broad category of high-carbon steel widely used for general Japanese woodworking tools. Affordable, easy to sharpen, and highly functional, though it lacks the extreme refinement of the Hitachi paper steels. A democratic steel that puts functional tools in every craftsman's hands.

carbon0.55–1.50%
Sharpness
7
Edge Retention
5
Ease of Sharpening
9
Rust Resistance
3
AOGAMI-2

Aogami #2

Blue Paper Steel #2

Similar to Aogami #1 but with slightly lower carbon and tungsten content. Offers an excellent balance of edge retention and toughness, making it the most-used steel among Japanese master blacksmiths. The sweet spot of the Aogami family — demanding enough to be worthy, forgiving enough to be reliable.

carbon1.05–1.15%chromium0.20–0.50%tungsten1.00–1.50%
Sharpness
8
Edge Retention
8
Ease of Sharpening
7
Rust Resistance
4