Made in Japan

Double Edged Blue Steel

Blue high-carbon steel is valued for its edge retention and durability, making it ideal for knives that demand both precision and longevity. Created by combining carbon and iron with tungsten and chromium, blue steel offers a longer-lasting edge than white steel, though it doesn’t achieve quite as fine a cutting edge. Chromium in the alloy adds mild wear and corrosion resistance, although it remains a high-carbon steel requiring diligent care to prevent rust.

Blue Steel Types:

  • Super Blue Steel: With added vanadium for wear resistance, Super Blue holds the longest edge of the blue steels, ideal for heavy use while maintaining sharpness.
  • Blue Steel #1: Higher carbon content than Blue Steel #2, making it harder with longer edge retention, though somewhat more brittle.
  • Blue Steel #2: Less carbon, balancing hardness with durability, popular among chefs for reduced chipping.

Blue steel knives require attentive care but deliver excellent performance, especially for chefs needing a resilient blade that maintains its edge through rigorous work.

  • Handcrafted in Japan
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  • Petty knife with dark wood handle and blue steel blade, with black saya cover
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    Yoshihiro Black Finish Blue Steel #2 Kurouchi Petty Shitan Handle with Magnolia Saya Cover

    Yoshihiro Black Finish Blue Steel #2 Kurouchi Petty Shitan Handle with Magnolia Saya Cover

    From $139.99
    From $139.99
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  • Kurouchi petty knife set with two matching blades and dark shitan handles
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    Yoshihiro Mizu Yaki Blue High Carbon Steel #1 Kurouchi Petty Japanese Utility Knife Shitan Handle

    Yoshihiro Mizu Yaki Blue High Carbon Steel #1 Kurouchi Petty Japanese Utility Knife Shitan Handle

    From $149.99
    From $149.99
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  • Petty utility knife and saya cover on tabletop, light wood handle with black bolster

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Petty Utility Knife with Kaede Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Petty Utility Knife with Kaede Handle

    From $149.99
    From $149.99
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  • Petty utility knife with dark saya cover and kurouchi blade
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    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Utility Knife with Shitan Wood Handle

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Utility Knife with Shitan Wood Handle

    From $169.99
    From $169.99
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  • Kurouchi-finished blue steel petty knife with light wood handle and light wood sheath cover.

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Petty-Kiritsuke Utility Knife with Kaede Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Petty-Kiritsuke Utility Knife with Kaede Handle

    From $169.99
    From $169.99
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  • Petty utility knife with ebony handle and blue-gray kurouchi blade on wooden boards

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Utility Knife with Ebony Handle

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Utility Knife with Ebony Handle

    From $169.99
    From $169.99
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  • Chef knife with blackened blue steel blade and dark handle, saya cover shown
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    Yoshihiro Black Finish Blue Steel #2 Kurouchi Santoku Multipurpose Japanese Chef Knife (D-Shape Shitan Handle)

    Yoshihiro Black Finish Blue Steel #2 Kurouchi Santoku Multipurpose Japanese Chef Knife (D-Shape Shitan Handle)

    From $179.99
    From $179.99
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  • Japanese utility kiritsuke knife with saya cover, dark wooden handle, and visible blade edge
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    Yoshihiro Mizu Yaki Blue High Carbon Steel #1 Kurouchi Utility-Kiritsuke Japanese Knife Shitan Handle - Blade Length: 7"(180mm)

    Yoshihiro Mizu Yaki Blue High Carbon Steel #1 Kurouchi Utility-Kiritsuke Japanese Knife Shitan Handle - Blade Length: 7"(180mm)

    From $179.99
    From $179.99
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  • Petty utility knife with kurouchi steel blade and dark shitan handle, in a sheath.
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    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Kiritsuke Utility Knife with Shitan Wood Handle

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Kiritsuke Utility Knife with Shitan Wood Handle

    From $179.99
    From $179.99
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  • Yoshihiro Kurouchi petty utility knife with dark handle and saya cover

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Petty Utility Knife Ebony wood Handle

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Petty Utility Knife Ebony wood Handle

    From $179.99
    From $179.99
    Blade length:
  • Utility knife with kurouchi-finished blade and ebony handle, shown with saya cover

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Kiritsuke Utility Knife Ebony Handle

    Yoshihiro Aogami Super Blue High Carbon Steel Kurouchi Petty Kiritsuke Utility Knife Ebony Handle

    From $179.99
    From $179.99
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  • Ebony-handled boning knife with straight pointed blade and stamped markings

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Boning Honesuki Utility Knife (Ebony Handle)

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Boning Honesuki Utility Knife (Ebony Handle)

    From $189.99
    From $189.99
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  • Petty-kiritsuke knife with dark blade and ebony wood handle, side view

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Petty-Kiritsuke Knife Ebony wood Handle

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Petty-Kiritsuke Knife Ebony wood Handle

    From $189.99
    From $189.99
    Blade length:
  • Japanese gyuto chef’s knives with kurouchi blades and ebony handles
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    Yoshihiro High Carbon Blue Steel #2 Kurouchi Gyuto Japanese Multipurpose Knife with Ebony Wood Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Gyuto Japanese Multipurpose Knife with Ebony Wood Handle

    From $199.99
    From $199.99
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  • Kurouchi blue steel gyuto knife with light Kaede handle, black collar, and etched blade
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    Yoshihiro High Carbon Blue Steel #2 Kurouchi Gyuto Japanese Multipurpose Knife with Kaede Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Gyuto Japanese Multipurpose Knife with Kaede Handle

    From $199.99
    From $199.99
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  • Nakiri vegetable knife with dark kurouchi blade and ebony wood handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Nakiri Japanese Vegetable Knife with Ebony Wood Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Nakiri Japanese Vegetable Knife with Ebony Wood Handle

    From $209.99
    From $209.99
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  • Santoku knife with dark blade and black handle cover, full length view
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    Yoshihiro High Carbon Blue Steel #2 Kurouchi Santoku Japanese Multipurpose Knife with Ebony Wood Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Santoku Japanese Multipurpose Knife with Ebony Wood Handle

    From $209.99
    From $209.99
    Blade length:
  • Kiritsuke chef knife with black handle, dark speckled blade, and light wood saya cover

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Japanese Kiritsuke Chef Knife with Kaede Handle

    Yoshihiro High Carbon Blue Steel #2 Kurouchi Japanese Kiritsuke Chef Knife with Kaede Handle

    From $219.99
    From $219.99
    Blade length:
  • Chef's gyuto knife with hammered stainless blade and white-gray crackle handle
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    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Howlite White Handle with Alternative Ivory Bolster (8.25" (210mm))

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Howlite White Handle with Alternative Ivory Bolster (8.25" (210mm))

    From $219.99
    From $219.99
    Blade length:
  • Hammered gyuto chef's knife with white blade, dark handle, off-white bolster

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Ebony Wood Handle with Alternative Ivory Bolster (Blade Length: 210mm(8.25"))

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Ebony Wood Handle with Alternative Ivory Bolster (Blade Length: 210mm(8.25"))

    From $219.99
    From $219.99
    Blade length:
  • Chef's gyuto knife with hammered stainless blade, rosewood handle, ivory bolster

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Rosewood Handle with Alternative Ivory Bolster (Blade Length: 210mm(8.25"))

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Rosewood Handle with Alternative Ivory Bolster (Blade Length: 210mm(8.25"))

    From $219.99
    From $219.99
    Blade length:
  • Kiritsuke chef knife with ebony handle and wooden saya cover, blue-gray blade

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Kiritsuke Multipurpose Chef Knife (Ebony Handle)

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Kiritsuke Multipurpose Chef Knife (Ebony Handle)

    From $254.99
    From $254.99
    Blade length:
  • Kiritsuke chef knife with ebony handle and black saya cover, pointed blade

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Kiritsuke Chef Knife Ebony wood Handle

    Yoshihiro Kurouchi Black-Forged Blue Steel Stainless Clad Kiritsuke Chef Knife Ebony wood Handle

    From $259.99
    From $259.99
    Blade length:
  • Gyuto chef knife with hammered stainless blade and green stabilised handle
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    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Stabilized Handle 240mm 9.5 inch

    Yoshihiro Super Blue Steel Stainless Clad Hammered Gyuto Chefs Knife Stabilized Handle 240mm 9.5 inch

    From $259.99
    From $259.99
    Blade length: