碳鋼
碳鋼
Carbon steel is reactive — it will rust quickly if not properly cared for. Always wash immediately after use, dry thoroughly, and apply a thin coat of food-safe oil (camellia, mineral) before storage. Over time it develops a patina that offers some natural protection and, for many users, becomes part of the knife's character. Rewarding to use, but not recommended if you want a "wash and forget" knife. 武生特殊鋼，日本
Carbon steel is reactive — it will rust quickly if not properly cared for. Always wash immediately after use, dry thoroughly, and apply a thin coat of food-safe oil (camellia, mineral) before storage. Over time it develops a patina that offers some natural protection and, for many users, becomes part of the knife's character. Rewarding to use, but not recommended if you want a "wash and forget" knife. 武生特殊鋼，日本
V-Toku 1 V 金 1 號
硬度
洛氏硬度(HRC) 衡量鋼材抵抗永久變形的能力。就廚刀而言：
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号，V-Special 1）是武生特殊鋼對經典日立青鋼一號的演繹。作為一種合金碳鋼，其化學成分與青鋼一號非常接近，並添加了釩及約1%的鎢，加上武生宣稱更高的純度，V-Toku 1的耐磨性應略優於青鋼二號。
V-Toku 1具有極佳的淬透性，可達到HRC64的硬度，許多刀匠會利用此硬度打造出極薄刀刃，使其切割食材時表現極為出色。由於武生也生產含銅或青銅層的夾鋼胚料，V-Toku 亦可見於歐美刀匠的作品中，讓眾多廚師得以享受碳鋼刀具卓越的切割體驗。
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+
V-Toku 1 成分分析
V-Toku 1 含有什麼？
每種元素對刀鋼性能的貢獻。
| 元素 | 規格範圍 | 對刀的作用 |
|---|---|---|
| W鎢 | 2.0–2.5% | Forms hard carbides for wear resistance and edge stability, and keeps the steel hard even at elevated temperatures. |
| C碳 | 1.1–1.2% | The primary hardening element. More carbon means a harder edge that holds longer — but past a point it trades away toughness and rust resistance. |
| Cr鉻 | 0.2–0.5% | Raises corrosion resistance; at roughly 13%+ free chromium the steel qualifies as stainless. Also improves hardenability and wear. |
| Mn錳 | 0.5% | Aids hardenability and strength and acts as a deoxidiser in smelting. Too much can reduce toughness. |
| Si矽 | 0.0–0.35% | Strengthens the steel matrix and acts as a deoxidiser, improving hardness and resistance to oxidation. |
| Ni鎳 | 0.0–0.25% | Improves toughness and ductility without sacrificing hardness, and adds a small boost to corrosion resistance. |
| V釩 | 0.0–0.2% | Forms extremely hard vanadium carbides for superior edge retention, and refines the grain for a finer, tougher edge. |
| P磷 | 0.0–0.03% | An impurity from smelting. Even small amounts promote brittleness, so steelmakers keep it as low as possible. |
| S硫 | 0.0–0.03% | An impurity that reduces toughness and promotes brittleness; only ever added deliberately in free-machining steels. |
成分資料取自zknives（K&S鋼材資料集）參考資料。這些範圍來自K&S鋼材成分資料集，該資料集源自zknives；僅在頁面實際引用製造商數據時，才會另行標註。
刀具分類 V-Toku 1
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