Togo Reigo vs Aogami #2

Detailed metallurgical comparison between Togo Reigou Steel and Blue Paper Steel #2.

TOGO-REIGO

Togo Reigo

Togo Reigou Steel

Extremely rare historical steel produced by Andrews Steel Company in the late 19th century. Known for achieving White #1 levels of keenness with Blue Super edge retention. Notoriously difficult to forge, requiring master-level heat control. Tools made from this steel are among the most coveted in the world.

carbonUnknown (High)
Sharpness
10
Edge Retention
10
Ease of Sharpening
5
Rust Resistance
4
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