日立特殊鋼，日本
YXR7
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.
62–65
HRC
555759616365+
YXR7 鋼材是一種高速工具鋼，以其卓越的韌性與耐磨性著稱，是製作廚刀的絕佳選擇。這款鋼材的特點在於其高碳鋼成分，並添加了釩與鉬等合金元素，能有效提升硬度與鋒利保持度。
適中的碳與鉻含量使其具備半不鏽鋼的特性，研磨手感如同碳鋼般輕鬆順暢，卻無需繁瑣的保養程序。
YXR7 優異的韌性確保刀具能承受日常廚房的高強度使用而不易崩刃或斷裂；其出色的耐磨性則讓鋒利度更持久，減少研磨頻率。以 YXR7 鋼材打造的廚刀因其耐用性及輕鬆實現精準切割的性能而備受推崇，足以應對最嚴苛的烹飪環境。
適中的碳與鉻含量使其具備半不鏽鋼的特性，研磨手感如同碳鋼般輕鬆順暢，卻無需繁瑣的保養程序。
YXR7 優異的韌性確保刀具能承受日常廚房的高強度使用而不易崩刃或斷裂；其出色的耐磨性則讓鋒利度更持久，減少研磨頻率。以 YXR7 鋼材打造的廚刀因其耐用性及輕鬆實現精準切割的性能而備受推崇，足以應對最嚴苛的烹飪環境。
成分
YXR7 元素組成
比較對象
YXR7
—
5.0%
3.8%
2.5%
1.3%
0
C
0.8%
Cr
5.0%
V
1.1%
Mo
5.0%
W
1.1%
C — 碳
Cr — 鉻
V — 釩
Mo — 鉬
W — 鎢
硬度
62–65 HRC
555759616365+
Knives in YXR7
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