日本武生特殊鋼
VG5
Hardness
Rockwell C Hardness (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.
58–59
HRC
555759616365+
VG5 鋼是一種高級不鏽鋼，具有優異的機械性能，包括高彎曲強度、屈服點、延展性、斷面收縮率及衝擊強度。其精煉、低雜質的成分提升了研磨性及熱鍛造的便利性。VG5 有較高的鉻（Cr）與碳（C）含量，這在不鏽鋼中屬於較高水平，有助於抑制共晶碳化物結晶，並通過元素比例的平衡及細緻碳化物的均勻結構，最大化硬度。鋼材在製造過程中經過精細純化，減少雜質並獲得最佳晶粒結構，再經過策略性熱處理進一步提升。VG5 較 VG2 含有更多碳與鉬（Mo），並添加釩（V），使碳化物更細緻。這種配方確保了硬度、耐磨性與耐腐蝕性的極佳平衡，使 VG5 特別受消費級廚房工具歡迎。
Composition
VG5 Element Composition
Compare with
VG5
—
14.0%
10.5%
7.0%
3.5%
0
C
0.75%
Cr
14.0%
V
0.15%
Mo
0.3%
C — Carbon
Cr — Chromium
V — Vanadium
Mo — Molybdenum
Hardness
58–59 HRC
555759616365+
