PM / 粉末鋼
Powder Metallurgy (PM)
A modern steel-making process where the alloy is atomised into a fine powder and then compressed under high pressure before sintering. This creates an exceptionally uniform carbide distribution — far finer and more even than conventionally cast steel. The result is a blade that achieves higher hardness without sacrificing toughness, holds a keener edge for longer, and is more resistant to chipping. PM steels are generally considered a step up in performance, though they can be harder to sharpen on coarse stones. Hitachi Special Steel, Japan 🇯🇵
A modern steel-making process where the alloy is atomised into a fine powder and then compressed under high pressure before sintering. This creates an exceptionally uniform carbide distribution — far finer and more even than conventionally cast steel. The result is a blade that achieves higher hardness without sacrificing toughness, holds a keener edge for longer, and is more resistant to chipping. PM steels are generally considered a step up in performance, though they can be harder to sharpen on coarse stones. Hitachi Special Steel, Japan 🇯🇵
ZDP-189 粉末高速工具鋼 ZDP-189
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.
63–66
HRC
555759616365+
ZDP189是一款頂級粉末冶金不鏽鋼，以其卓越的硬度與出色的鋒利保持度聞名。由日立金屬開發，其高碳與鉻含量極高，使硬度可達 67 HRC，堪稱製刀領域中最堅硬的鋼材之一。正因為擁有如此驚人的硬度，ZDP189能研磨出極為細緻的刃口，並在長時間高強度使用下依然維持銳利，其鋒利保持度遠勝許多其他鋼種。不過，高硬度也意味著研磨難度較高，若使用不當則較容易崩刃。儘管 ZDP189因含有大量鉻而具備一定的抗腐蝕能力，日常仍需細心保養刀身。憑藉這些優異特性，ZDP189常見於高端與特規刀具，深受重視切削性能與耐用度的玩家及專業人士青睞。
成分
ZDP-189 元素組成
比較對象
ZDP-189
—
20.0%
15.0%
10.0%
5.0%
0
C
3.0%
Cr
20.0%
V
0.1%
Mo
1.4%
W
0.6%
Mn
0.5%
Si
0.4%
C — 碳
Cr — 鉻
V — 釩
Mo — 鉬
W — 鎢
Mn — 錳
Si — 矽
硬度
63–66 HRC
555759616365+
Frequently asked questions
ZDP-189 高碳不鏽鋼用於廚刀的優缺點
We trust this information is correct at the time of writing, but it is not an official document and details may change without notice. If you spot an error, tell us and we'll fix it.
Knives in ZDP-189
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售罄
佑成
佑成 ZDP-189 Hairline K tip 牛刀 270mm
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佑成
佑成 ZDP-189 Hairline K tip 牛刀 210mm
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佑成
佑成 ZDP-189 Hairline 切付牛刀 240mm
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佑成
佑成 ZDP-189 Hairline 牛刀 240mm
初心
初心 隼 ZDP-189 鏡面 牛刀 240mm
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初心
初心 隼 ZDP-189 鏡面 牛刀 210mm
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佑成
佑成 ZDP-189 大馬士革 切付 (切付) 牛刀 240mm Birch Burl Handle
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佑成
佑成 ZDP-189 大馬士革 牛刀 270mm Birch Burl Handle
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佑成
佑成 ZDP-189 大馬士革 牛刀 240mm Birch Burl Handle
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佑成
佑成 ZDP-189 大馬士革 牛刀 210mm Birch Burl Handle
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佑成
佑成 ZDP-189 大馬士革 筋引 240mm Burl Handle with 刀鞘
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初心
