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powdered steel

SG2/R2

SG2/R2 (粉末ハイス鋼)

Edge Retention Corrosion Resistance Ease of Sharpening Toughness Hardness

SG2 (Super Gold 2), also marketed as R2, is a powdered metallurgy stainless steel by Takefu Special Steel. With a hardness of 63-64 HRC, it holds an incredibly keen edge while still resisting corrosion. Used in premium knives from Takamura, Saji, and the Shun Premier line.

Specifications

Edge Retention
5/5
Corrosion Resistance
4/5
Ease of Sharpening
2/5
Toughness
3/5
Hardness (HRC)
63-64
Type Powdered
Hardness Range 63-64 HRC

Knives Using SG2/R2

Takamura R2 Gyuto 210mm

Gyuto · 210mm

Takamura R2 Gyuto 210mm

高村 (takamura)

SG2 R2 Yo Handle $220
Shun Premier Santoku 180mm

Santoku · 180mm

Shun Premier Santoku 180mm

旬 (shun)

SG2 R2 Wa Handle $200
Takamura R2 Petty 130mm

Petty · 130mm

Takamura R2 Petty 130mm

高村 (takamura)

SG2 R2 Yo Handle $110
Miyabi Birchwood SG2 Gyuto 200mm

Gyuto · 200mm

Miyabi Birchwood SG2 Gyuto 200mm

雅（ツヴィリング） (miyabi)

SG2 R2 Yo Handle $250
Yu Kurosaki Senko Bunka 165mm

Bunka · 165mm

Yu Kurosaki Senko Bunka 165mm

黒崎優 (kurosaki)

SG2 R2 Wa Handle $280
Ryusen Blazen Petty 150mm

Petty · 150mm

Ryusen Blazen Petty 150mm

龍泉刃物 (ryusen)

SG2 R2 Wa Handle $180