R2 / SG2 vs Aogami Super

Detailed metallurgical comparison between Super Gold 2 Powder Steel and Super Blue Steel.

R2-SG2

R2 / SG2

Super Gold 2 Powder Steel

A powder-metallurgy stainless steel developed by Takefu Special Steel. R2 and SG2 refer to the same steel from different suppliers. Combines surprisingly good stainless properties with very high hardness and excellent edge retention. One of the most practical high-performance steels for everyday use.

carbon1.25–1.45%chromium14.00–16.00%molybdenum2.00–3.00%vanadium1.80–2.20%
Sharpness
8
Edge Retention
9
Ease of Sharpening
5
Rust Resistance
8
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AOGAMI-SUPER

Aogami Super

Super Blue Steel

The highest-carbon variant among Aogami steels. Includes vanadium and molybdenum for extreme edge retention and hardness. Revered and feared in equal measure — its edge outlasts almost everything, but requires a master's touch to sharpen properly. The pinnacle of the Hitachi carbon steel family.

carbon1.40–1.50%chromium0.30–0.50%tungsten2.00–2.50%vanadium0.30–0.50%molybdenum0.30–0.52%
Sharpness
9
Edge Retention
10
Ease of Sharpening
5
Rust Resistance
4
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