Aogami #2 vs Shirogami #1

Detailed metallurgical comparison between Blue Paper Steel #2 and White Paper Steel #1.

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
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SHIROGAMI-1

Shirogami #1

White Paper Steel #1

Pure high-carbon steel with minimal impurities. Takes a laser-like edge and is easy to sharpen, but more brittle than Aogami. The traditional choice of master woodworkers who demand the finest possible cutting edge and sharpen their tools with religious dedication. Rust forms overnight if neglected.

carbon1.25–1.35%
Sharpness
10
Edge Retention
7
Ease of Sharpening
9
Rust Resistance
2
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