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By Hatsukokoro

Hatsukokoro Kuronami Blue 2 Kurouchi

Sanmai - Soft Iron Clad Kurouchi Blue 2 / Aogami #2 / Carbon Hyogo, Japan

The Kuronami(黒波, Black Wave) is a newly released entry level carbon knife line. It's commissioned by Hatsukokoro and aimed at the entry level carbon knife market. This line is extremely similar to the Kokugei line, but featuring Blue 2 instead of Blue 1 core steel and a slightly different finish.

This line have many features that is in common with the Kokugei line: glossy Kurouchi finish that has a teal tint, tapered spine and a very good edge out of the box. Thanks to the carbon core steel, the food penetration is excellent on this line and the edge won't hesitate on the surface of the food. However, the glossy finish and the lack of special geometry means some sticking will happen as you cut some dense food like potato or carrot.

The pricing on this line is also quite friendly for beginner, by it comes at the price of poorer fit and finish. Rough grinding marks are observable near the choil, and the bevel isn't polished evenly. But compare with the Kokugei line, this line features a hazy wave-like finish on its bevel that runs from tip to heel, thus it gets the "Black Wave" name. It is straight forward, but I think it is just like this line: a straight forward budget carbon knife with some interesting cosmetic features and decent cutting performance.

If you are looking to try out a carbon knife but don't want spend too much on something you are not sure if you can take good care of, this line is an alternative choice besides the Kokugei line.

Pros

  • Budget friendly
  • Thin behind the edge

Cons

  • Need extra care
  • Fit and finish can be improved

Best For

  • First-timers
  • Students
Construction
Sanmai - Soft Iron Clad
Surface Finish
Kurouchi
Steel
Blue 2 / Aogami #2 / Carbon
Origin
Hyogo, Japan

Frequently asked questions

What is the difference between Blue 2 and White 2 steel?

Proterial lists 1.05 to 1.15% carbon for both steels; its Blue 2 table lists 0.20 to 0.50% chromium and 1.00 to 1.50% tungsten, while its White 2 table lists neither.

Proterial describes White 2 as a carbon steel with minimum impurities and high hardness, and Blue 2 as an alloy steel with tungsten and chromium to improve heat-treatment properties and wear resistance, with a hardening hardness of over 60 HRC for both. In its Japanese materials, Proterial calls its Aogami (青紙) steels high-carbon steel (高炭素鋼). Neither steel is close to the JSSA's 10.5% minimum for stainless.

Published by K&S Education Desk; staff review pending

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