愛知，日本
ZA-18
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.
60–62
HRC
555759616365+
ZA-18鋼是愛知鋼（Aichi Steel）研發的高級日本不鏽鋼刀鋼，專為高端廚刀設計。憑藉細緻的晶粒結構，ZA-18鋼提供卓越的鋒利度、優異的刃口保持性以及較VG10鋼更佳的韌性。
由於含有高碳量以達成硬度（通常為60–62 HRC），並添加鉻、鉬和釩，ZA-18鋼備出色的抗蝕性、耐磨性和刃口穩定性。這成為專業廚房及認真家庭主婦的理想選擇。
廣泛應用於日本主廚刀中，ZA-18鋼完美平衡了耐用性、鋒利度與易於保養的特性，是追求可靠且高性能廚刀的首選。
由於含有高碳量以達成硬度（通常為60–62 HRC），並添加鉻、鉬和釩，ZA-18鋼備出色的抗蝕性、耐磨性和刃口穩定性。這成為專業廚房及認真家庭主婦的理想選擇。
廣泛應用於日本主廚刀中，ZA-18鋼完美平衡了耐用性、鋒利度與易於保養的特性，是追求可靠且高性能廚刀的首選。
