What type of steel is SG2 / R2?

sg2 / r2 is a stainless knife steel produced using powder metallurgy (PM), made by Takefu Special Steel, Japan.

What is the hardness of SG2 / R2 steel?

SG2 / R2 steel is typically hardened to 62–64 HRC.

Is SG2 / R2 steel stainless?

sg2 / r2 is classified as stainless with 14.0% chromium.

Stainless Stainless Steel

"Stainless" means stain-resistant, not stain-proof. In kitchen use, the steel can still discolour or pit if exposed to acidic environments — citrus, vinegar, or salt water — for extended periods. Wash and wipe dry after every use, and avoid leaving the blade soaking in water. With basic care, a stainless knife is very low-maintenance and a great everyday choice. PM / Powder Steel Powder Metallurgy (PM)

A modern steel-making process where the alloy is atomised into a fine powder and then compressed under high pressure before sintering. This creates an exceptionally uniform carbide distribution — far finer and more even than conventionally cast steel. The result is a blade that achieves higher hardness without sacrificing toughness, holds a keener edge for longer, and is more resistant to chipping. PM steels are generally considered a step up in performance, though they can be harder to sharpen on coarse stones. Takefu Special Steel, Japan 🇯🇵

SG2 / R2 スーパーゴールド2

Hardness

62–64 HRC

555759616365+

SG2, also known as Super Gold 2 or R2 steel, is a high-end powdered tool steel by Takefu Special Steel, known for its excellent edge retention, wear resistance, and ability to achieve a hardness of up to 64 HRC. Identical to Kobelco Steel's R2, it's prized in premium knife making for its fine edge sharpness and durability. The powdered nature ensures uniform carbide distribution, enhancing toughness and reducing chipping risks. SG2/R2 is ideal for those seeking top performance and longevity in their cutting tools.

Compare with

SG2 / R2

—

14.0% 10.5% 7.0% 3.5% 0

1.25%

14.0%

1.8%

2.3%

0.4%

0.5%

0.03%

C — Carbon Cr — Chromium V — Vanadium Mo — Molybdenum Mn — Manganese Si — Silicon P — Phosphorus S — Sulfur

Hardness 62–64 HRC

555759616365+

Steel

SG2 / R2

SG2 / R2 スーパーゴールド2

SG2 / R2 Element Composition

Knives in SG2 / R2

Nigara SG2 Kurouchi Tsuchime K-tip Petty Knife 150mm

Yoshimi Kato Hyo SG2 Gyuto 210mm

Yoshimi Kato Hyo SG2 Petty 150mm

Takamura SG2 Migaki Gyuto 180mm

Sakai Takayuki SPG2 Tsuchime Damascus Gyuto 210mm

Hatsukokoro Ryuhyo SG2 Damascus Petty 150mm Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus Santoku 180mm Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus Bunka 180mm Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus K tip Gyuto 240mm Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus K tip Gyuto 210mm Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus Gyuto 240mm, Olivewood Handle

Hatsukokoro Ryuhyo SG2 Damascus Gyuto 210mm, Olivewood Handle

Nigara SG2 Kurouchi Tsuchime K-Tip Sujihiki 255mm Green Turquoise

Yoshimi Kato Minamo SG2 Bunka 180mm Mother-of-pearl Handle

Kurosaki Senko Ei SG2 K-tip Gyuto 270mm Faux Ivory Ferrule Octagonal

Kurosaki Senko Ei SG2 K-tip Gyuto 270mm Mother-of-pearl handle

Kurosaki Senko Ei SG2 K-tip Gyuto 270mm Ebony Handle

Kurosaki Senko Ei SG2 K-tip Gyuto 270mm Rosewood Handle

Yoshimi Kato Hyo SG2 Santoku 170mm

Takeshi Saji SG2 Kurozome Damascus Gyuto 210mm Ironwood Handle Wenge Saya

Takeshi Saji SG2 Black Damascus Paring 90mm

Kurosaki Senko (閃光) Ei SG2 Santoku 165mm Ai Tenmoku Handle & Saya

Yu Kurosaki Shizuku SG2 Petty 150mm

Yu Kurosaki Shizuku SG2 Petty 120mm

Yu Kurosaki Shizuku SG2 Nakiri 165mm

Yu Kurosaki Shizuku SG2 Gyuto 240mm

Yu Kurosaki Shizuku SG2 Gyuto 270mm

Shibata Koutetsu SG2 Boss Bunka 215mm, Ebony Black Ring Handle

Shibata Koutetsu SG2 Boss Bunka 215mm, Ebony White Ring Handle

Event: Shibata Koutetsu SG2 Battleship K-tip Gyuto 195mm

Hatsukokoro Ryuhyo SG2 Black Damascus K-tip Gyuto 240mm Birch

Nigara SG2 KU Double-bevel Honesuki 170mm (Boning Knife) Tsuchime Ebony

Nigara SG2 KU Double-bevel Honesuki 150mm (Boning Knife) Tsuchime Ebony

Nigara SG2 K-tip Nakiri 170mm with Kurouchi Tsuchime Finish Ebony

Nigara SG2 Kurouchi Tsuchime K-Tip Sujihiki 255mm Ebony

Yoshimi Kato Hyo SG2 Bunka 180mm

Hado Shiosai SG2 Tsuchime K-tip Gyuto 210mm

Hado Shiosai SG2 Tsuchime Ko-Bunka 135mm

Hado Shiosai SG2 Tsuchime Bunka 180mm

Hatsukokoro Ryuhyo SG2 Damascus K tip Gyuto 240mm ebony handle

Yoshimi Kato Hyo SG2 K-tip Gyuto 210mm

Nigara SG2 Kurouchi Tsuchime K tip Gyuto 240mm

Nigara SG2 KU Gyuto 210mm Tsuchime Ebony

Nigara SG2 KU K-tip Gyuto 210mm Tsuchime Ebony

Nigara SG2 Kurouchi Tsuchime Bunka 180mm

Nigara SG2 Kurouchi Tsuchime Petty 150mm

Kurosaki Senko Ei SG2 K-tip Gyuto 270mm Gold Ferrule

Myojin Riki Seisakusho SG2 K tip Gyuto 210mm Snakewood Handle

Takeshi Saji SG2 Diamond Damascus Gyuto 210mm Ironwood

Takeshi Saji SG2 Black Damascus Bunka 180mm Ironwood

Tanaka Habakiri SG2 Damascus Sujihiki 240mm with Saya

Tanaka R2 Etched Black Damascus Gyuto 180mm Ironwood Handle

Tanaka R2 Black Damascus Ironwood Petty 150mm

Takeshi Saji SG2 Black Damascus Santoku 180mm Ironwood Handle Wenge Saya

Takeshi Saji SG2 Black Damascus Nakiri 180mm Ironwood Handle Wenge Saya

Takeshi Saji SG2 Black Damascus Bunka 180mm, Guard Included

Takeshi Saji SG2 Black Damascus Sujihiki 240mm Heart-shaped Ironwood Handle

Takeshi Saji SG2 Black Damascus Gyuto 180mm Heart-shaped Ironwood Handle

Takeshi Saji SG2 Black Damascus Petty 150mm Heart-shaped Ironwood Handle

Myojin Riki Seisakusho SG2 Gyuto 240mm Amboyna Handle

Yoshimi Kato SG2 Minamo Gyuto 210mm Mother-of-pearl Handle

Yoshimi Kato SG2 Minamo Petty 150mm Mother-of-pearl Handle

Nigara SG2 Tsuchime Matt Migaki Petty 150mm Western Ironwood

Hatsukokoro Hayabusa SG2 Migaki K-tip Gyuto 240mm

Nigara SG2 Kurouchi Tsuchime Sujihiki 240mm Ebony Handle

Yoshimi Kato SG2 Tsuchime Honesuki Double-bevel 150mm

Takamura SG2 Migaki Santoku 170mm

Hatsukokoro Ryuhyo SG2 Black Damascus Gyuto 210mm Ebony

Nigara Anmon (暗紋) SG2 Raindrop Damascus Sakimaru Sujihiki 270mm Mother-of-peral Western

Nigara Anmon (暗紋) SG2 Raindrop Damascus K-tip Sujihiki 240mm Mother-of-peral Western

Nigara SG2 Mother-of-pearl Sakimaru Sujihiki 270mm Kurouchi Tsuchime

Nigara SG2 Mother-of-pearl Sakimaru Sujihiki 300mm Kurouchi Tsuchime

Sukenari SG2 K-tip Yanagiba 270mm Mirror Polish

Sukenari SG2 Yanagiba 270mm Mirror Polish with Saya Ni-Mai (2-Layer)

Sukenari SG2 K-tip Yanagiba 240mm Mirror Polish Ni-Mai (2-Layer)

Sukenari SG2 Yanagiba 240mm Mirror Polish

Hatsukokoro Ryuhyo SG2 Black Damascus K-tip Gyuto 240mm Ebony