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武生特殊鋼材、日本

VG1 V金1号

Hardness ? Rockwell C Hardness(HRC) は、鋼材の永久変形に対する耐性を示す指標です。包丁においては:

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.
58–61 HRC
555759616365+
V金1号はV鋼シリーズの出発点となる鋼材で、不純物の少ない高品質な原料を用いて精製されています。微細な組織、高い靭性、優れた熱間鍛造性、容易な熱処理、そして卓越した耐食性を備えたステンレス刃物鋼です。

炭素(C)を1.0%含有するため、硬質の一次・二次炭化物がマトリックス中に共存し、耐摩耗性に寄与しています。
クロム(Cr)を14%含み、耐食性と強度の向上に最大限の効果を発揮します。モリブデン(Mo)はクロムと共に硬質な複合炭化物を形成し、耐摩耗性と耐食性の向上に大きく貢献します。

V金1号は包丁に求められる4大要件、すなわち(1)高硬度、(2)高靭性、(3)高耐摩耗性、(4)高耐食性を達成しており、包丁をはじめ理美容ハサミ、食品加工用産業機械刃物など幅広い用途に適しています。
Composition

VG1 Element Composition

Compare with
    VG1
    13.0% 9.8% 6.5% 3.3% 0
    C Carbon 0.95%
    Primary hardening element. Raises hardness and wear resistance — but too much increases brittleness and corrosion susceptibility. As a reference: German 1.4112 (~0.5%) sits at the low end; VG-10 (~1.0%) is a common mid-range; SG2 (1.25–1.45%) and ZDP-189 (~3.0%) represent high and extreme ends respectively.
    C
    0.95%
    Cr Chromium 13.0%
    Raises corrosion resistance; 13%+ qualifies steel as stainless. Also improves hardenability and wear resistance. In kitchen use, higher chromium levels contribute to a slight drag or sticking sensation when cutting — a trade-off for the rust resistance it provides.
    Cr
    13.0%
    Mo Molybdenum 0.3%
    Improves hardenability and toughness. Boosts corrosion resistance and helps the steel hold hardness under heat.
    Mo
    0.3%
    C — Carbon Cr — Chromium Mo — Molybdenum
    Hardness 58–61 HRC
    555759616365+
    Steel
    VG1
    Category
    ステンレス鋼
    Manufacturer
    武生特殊鋼材、日本
    Hardness
    58–61 HRC