日立特殊鋼,日本
白一/白紙一號 White #1 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.
62–65
HRC
555759616365+
白鋼一號,又稱白紙鋼一號,以其極致的純度與卓越性能,在頂級日本刀具材質中獨樹一幟。它是白紙鋼二號的進階版本,透過進一步精煉並提高碳含量而成。額外的碳含量使白鋼一號的硬度(HRc)略高於前代產品,進而提升其研磨性,能輕鬆磨出極為鋒利細膩的刃口。然而,碳含量的增加也讓鋼材稍顯脆硬。儘管如此,白鋼一號仍深受專業廚師青睞,尤其是專精傳統日式料理的職人,這歸功於其出色的鋒利持久度與易於重新研磨的特性。與青紙鋼系列不同,白鋼一號不含鉻與鎢,而是專注於追求極致鋒利度。這項特質雖帶來無與倫比的鋒利度,但也意味著鋼材反應性較高,需要細心保養,包括使用後立即擦拭乾燥,以防止鏽蝕。
成分
白一/白紙一號 元素組成
比較對象
白一/白紙一號
—
1.3%
1.0%
0.7%
0.3%
0
C
1.3%
Mn
0.25%
Si
0.15%
P
0.025%
S
0.004%
C — 碳
Mn — 錳
Si — 矽
P — 磷
S — 硫
硬度
62–65 HRC
555759616365+
Knives in 白一/白紙一號
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售罄
池田美和
Exotic: 池田美和 白鋼一號 Mizu-本燒 Kachikaeshi 牛刀 240mm 黑檀木 Set
池田美和
Exotic: 池田美和 白鋼一號 Mizu-本燒 Mt. Fuji 先丸蛸引 390mm w/ 刀鞘
售罄
河村刃物株式會社
田中義一 白鋼一號 大馬士革 牛刀 240mm
售罄
河村刃物株式會社
田中義一 白鋼一號 大馬士革 牛刀 210mm
恆久
恆久 白鋼一號 S/S Clad 鏡面 牛刀 240mm Purple Handle
售罄
恆久
恆久 白鋼一號 不鏽鋼夾層 鏡面 牛刀 240 mm 黑檀木 Handle
售罄
恆久
恆久 白鋼一號 不鏽鋼夾層 鎚目 牛刀 240 mm 黑檀木 Handle
售罄
池田美和
