日立特殊鋼，日本
SLD
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.
62–64
HRC
555759616365+
日立SLD鋼是一種最初為模具和機械工具設計的工具鋼。其成分與D2工具鋼幾乎相同——這是一種自二戰以來經得起時間考驗的經典鋼材。其高鉻含量讓這種鋼幾乎接近不鏽，適量的鉬和釩則形成硬質碳化物，使其具備相當不錯的保持鋒利度。雖然韌性屬於同類鋼材的中等水平，但在正常廚房使用條件下並不需過度擔心。SLD鋼很適合想要一種能磨出鋒利刃口、但又不像經典碳鋼那麼需要費心維護的人士。
Composition
SLD Element Composition
Compare with
SLD
—
12.0%
9.0%
6.0%
3.0%
0
C
1.5%
Cr
12.0%
V
0.3%
Mo
0.9%
Mn
0.4%
Si
0.3%
C — Carbon
Cr — Chromium
V — Vanadium
Mo — Molybdenum
Mn — Manganese
Si — Silicon
Hardness
62–64 HRC
555759616365+
Knives in SLD
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初心 Hikari SLD 大馬士革 菜刀 170mm
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初心 x 二唐 Yorokobi 全拋光 SLD K-tip 牛刀 210mm 黑大馬士革 樺木
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初心 x 二唐 Yorokobi 全拋光 SLD 牛刀 210mm 黑大馬士革 樺木
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初心 Hikari SLD 大馬士革小刀 130mm
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初心 Hikari SLD 大馬士革小刀 150mm
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初心 Hikari SLD 大馬士革三德刀 170mm
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初心 Hikari SLD 大馬士革 牛刀 195mm Black Chacate
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初心 Hikari SLD 大馬士革牛刀 210mm
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Hado Ouru SLD 梨地 K-tip 牛刀 200mm
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Hado Ouru SLD 梨地 小文化刀 135mm
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初心 Hikari SLD 牛刀 210mm 黑 Chacate
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初心 x 二唐 喜特製 SLD 黑打大馬士革 K型牛刀 240mm 拋光
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初心 x 二唐 喜特製 SLD 黑打大馬士革文化拋光刀
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初心光 SLD Nakiri 165mm 黑色 Chacate
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Tsunehisa SLD Washiji Gyuto 210mm 燒肉卡西
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初心光 SLD 三德 170mm
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初心光 SLD Gyuto 195mm 黑色 Chacate
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Hatsukokoro x Nigara Yorokobi SLD 銅土石大馬士革小 150mm 帶 Saya
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Hatsukokoro x Nigara Yorokobi SLD 銅土大馬士革 K 尖 Gyuto 240mm 帶 Saya
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Hatsukokoro x Nigara Yorokobi SLD 銅土梅大馬士革牛刀 240mm 附 Saya
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Hatsukokoro x Nigara Yorokobi SLD 銅土梅大馬士革文化 180 毫米樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅土梅大馬士革三德 180mm 帶 Saya
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Hatsukokoro x Nigara Yorokobi Special SLD 黑內大馬士革牛刀 240mm 樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革 Sujihiki 270 毫米樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革 Sujihiki 240 毫米樺木手柄
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初心 x 二唐 喜特製 SLD 黑打大馬士革三德刀
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革三德 180 毫米樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革文化 180 毫米樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革 K-tip Gyuto 240mm 樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革 K-tip Gyuto 210mm 樺木手柄
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Hatsukokoro x Nigara Yorokobi SLD 銅大馬士革牛刀 240 毫米樺木手柄
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