東郷レイゴウ

Togo Reigo

Togo Reigou Steel

Extremely rare historical steel produced by Andrews Steel Company in the late 19th century. Known for achieving White #1 levels of keenness with Blue Super edge retention. Notoriously difficult to forge, requiring master-level heat control. Tools made from this steel are among the most coveted in the world.

Sharpness10/10
Edge Retention10/10
Ease of Sharpening5/10
Rust Resistance4/10
carbonUnknown (High)
Hardness63–67 HRC (historical accounts) HRC
Heat TreatmentExtremely demanding — historically caused high forge failure rates
Primary UseCollector-grade plane blades, museum pieces
ManufacturerAndrews Steel Company (UK, defunct)

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