CTS-BD1N

Nitrogen-enriched BD1. Sharpens very easily and resists rust well — a sensible steel for a knife you actually use hard.

Typical hardness

60-62 HRC

Edge retention

2/5

Toughness

4/5

Corrosion resistance

4/5

Ease of sharpening

4/5

1-5 is a relative ranking drawn from published composition and hardness, not a lab measurement. Higher is better on every axis, and no steel is a 5 across the board — edge retention and toughness pull against each other.