Shirogami #3 vs Aogami #2

Detailed metallurgical comparison between White Paper Steel #3 and Blue Paper Steel #2.

SHIROGAMI-3

Shirogami #3

White Paper Steel #3

Lower-carbon variant of White Steel. Less pure, but significantly tougher and easier to sharpen. Often used for larger striking tools or entry-level blades where toughness is prioritized over maximum edge retention.

carbon0.80–0.90%
Sharpness
7
Edge Retention
5
Ease of Sharpening
10
Rust Resistance
2
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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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