Hitachi / Japan

White 2

High Carbon Tool Steel (Non-Stainless)60–65 HRCConventional Ingot Steel Process

Composition

Core alloying elements define the baseline trade-off between wear resistance, corrosion behavior, and toughness.

Material Overview

Shirogami #2 (White Paper Steel #2) is one of the purest carbon steels produced by Hitachi and is considered the foundation of traditional Japanese knife making. Compared to Shirogami #1, it contains slightly less carbon, resulting in improved toughness and easier heat treatment while sacrificing a small amount of maximum hardness and edge retention. Its extremely low alloy content creates a fine grain structure that allows razor-like sharpness and exceptionally easy sharpening. Many Japanese bladesmiths consider Shirogami #2 one of the best steels for experiencing traditional Japanese cutting performance. Due to the absence of chromium, it is highly reactive and requires careful maintenance.

Performance Radar

Use four core metrics to understand the usable operating envelope of this steel at a glance.

Edge Retention
Toughness
Corrosion Resistance
Sharpenability
Edge Retention
7.0
Toughness
9.0
Corrosion Resistance
1.0
Sharpenability
10.0

Advantages

  • Extremely easy to sharpen
  • Outstanding sharpness potential
  • Excellent toughness for a high-carbon steel
  • Fine grain structure
  • Exceptional cutting feel
  • Forgiving and easy to heat treat

Disadvantages

  • Extremely low corrosion resistance
  • Requires frequent maintenance
  • Develops patina and rust quickly
  • Lower edge retention than Aogami steels
  • Not ideal for humid or marine environments

At A Glance

Shirogami #2 is a traditional Japanese carbon steel prized for exceptional sharpness, superior sharpening ease, and excellent toughness, making it a favorite among craftsmen and chefs.