Takefu Special Steel, Japan 🇯🇵
V-Toku 1 V 金 1 號
硬度
洛氏硬度(HRC) measures how resistant a steel is to permanent deformation. For kitchen knives:
55–58 HRC — Soft. Easy to sharpen and forgiving of rough use, but dulls faster. Typical of most German knives.
59–61 HRC — Balanced. Good edge retention with manageable sharpening. Common in mid-range Japanese knives.
62–64 HRC — Hard. Excellent edge retention, holds a very fine edge. Requires more care and a fine stone to sharpen.
65+ HRC — Very hard. Exceptional edge longevity but more brittle — more prone to chipping if used roughly.
Higher is not always better — it depends on how you use and maintain your knife.
55–58 HRC — Soft. Easy to sharpen and forgiving of rough use, but dulls faster. Typical of most German knives.
59–61 HRC — Balanced. Good edge retention with manageable sharpening. Common in mid-range Japanese knives.
62–64 HRC — Hard. Excellent edge retention, holds a very fine edge. Requires more care and a fine stone to sharpen.
65+ HRC — Very hard. Exceptional edge longevity but more brittle — more prone to chipping if used roughly.
Higher is not always better — it depends on how you use and maintain your knife.
62–64
HRC
555759616365+
V-Toku 1（V特1號，V-Special 1）是Takefu Special Steel對經典Hitachi青鋼一號的演繹版本。作為一種合金碳鋼，其化學成分與青鋼一號非常接近，並添加了少量釩，鎢含量約高出1%；結合Takefu宣稱的更高純度，V-Toku 1的耐磨性應略優於青鋼二號。
V-Toku 1具有優異的淬透性，可達HRC64硬度。許多刀具製造商會利用其高硬度，打造出極薄刃片的刀具，從而實現卓越的切割性能。由於Takefu也生產夾有銅層或青銅層的複合鋼坯，V-Toku 1亦常見於歐美製造商的刀具上，讓眾多廚師得以體驗碳鋼刀具的優異切割手感。
V-Toku 1具有優異的淬透性，可達HRC64硬度。許多刀具製造商會利用其高硬度，打造出極薄刃片的刀具，從而實現卓越的切割性能。由於Takefu也生產夾有銅層或青銅層的複合鋼坯，V-Toku 1亦常見於歐美製造商的刀具上，讓眾多廚師得以體驗碳鋼刀具的優異切割手感。
成分
V-Toku 1 元素組成
比較對象
V-Toku 1
—
2.25%
1.7%
1.1%
0.6%
0
C
1.25%
Cr
0.35%
V
0.2%
W
2.25%
Mn
0.5%
Si
0.35%
P
0.03%
S
0.03%
Ni
0.25%
C — 碳
Cr — 鉻
V — 釩
W — 鎢
Mn — 錳
Si — 矽
P — 磷
S — 硫
Ni — 鎳
硬度
62–64 HRC
555759616365+
Knives in V-Toku 1
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