Takefu Special Steel, 日本
Chromax鋼 Chromax 鋼
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.
60–62
HRC
555759616365+
Chromax鋼為傳統熔煉不鏽鋼，非粉末冶金（PM/SG2/R2類型）。
由武生特殊鋼公司（VG10、SG2/R2等鋼材之同廠製造商）生產。
類型：傳統錠鋼（非PM）
分類：高鉻不鏽鋼
特性：
優異耐蝕性（高於VG10鋼）
易於研磨
韌性佳、較不易脆裂（相較於多數PM鋼）
保持性中等（遜於SG2/R2鋼）
由武生特殊鋼公司（VG10、SG2/R2等鋼材之同廠製造商）生產。
類型：傳統錠鋼（非PM）
分類：高鉻不鏽鋼
特性：
優異耐蝕性（高於VG10鋼）
易於研磨
韌性佳、較不易脆裂（相較於多數PM鋼）
保持性中等（遜於SG2/R2鋼）
成分
Chromax鋼 元素組成
比較對象
Chromax鋼
—
5.0%
3.8%
2.5%
1.3%
0
C
1.0%
Cr
5.0%
V
0.5%
Mo
1.0%
Mn
0.9%
Si
0.4%
P
0.03%
S
0.03%
Ni
0.25%
C — 碳
Cr — 鉻
V — 釩
Mo — 鉬
Mn — 錳
Si — 矽
P — 磷
S — 硫
Ni — 鎳
硬度
60–62 HRC
555759616365+
