Carbon steel is reactive — it will rust quickly if not properly cared for. Always wash immediately after use, dry thoroughly, and apply a thin coat of food-safe oil (camellia, mineral) before storage. Over time it develops a patina that offers some natural protection and, for many users, becomes part of the knife's character. Rewarding to use, but not recommended if you want a "wash and forget" knife. 히타치 특수강, 일본
백3강 / 백3강 白三鋼
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.
백3강 / 백3강 Element Composition
Typical values from third-party sources.
백3강 / 백3강 Composition
What's in 백3강 / 백3강
What each element does in your knife.
| Element | Composition | What it does in your knife |
|---|---|---|
| CCarbon | 0.8–0.9% | The primary hardening element. More carbon means a harder edge that holds longer — but past a point it trades away toughness and rust resistance. |
| MnManganese | 0.2–0.3% | Aids hardenability and strength and acts as a deoxidiser in smelting. Too much can reduce toughness. |
| SiSilicon | 0.1–0.2% | Strengthens the steel matrix and acts as a deoxidiser, improving hardness and resistance to oxidation. |
| PPhosphorus | ≤ 0.025% | An impurity from smelting. Even small amounts promote brittleness, so steelmakers keep it as low as possible. |
| SSulfur | ≤ 0.004% | An impurity that reduces toughness and promotes brittleness; only ever added deliberately in free-machining steels. |
Composition from zknives (K&S steel dataset) reference material. These ranges come from the K&S steel composition dataset, which is derived from zknives; maker figures are cited separately only when they are used on the page.
칼 종류: 백3강 / 백3강
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