Description
Rust-proof precipitation-hardened steel. Uses nitrogen instead of carbon for hardness. Will not rust even in saltwater - literally rust-proof, not just stain resistant.
Properties
Edge Retention
Corrosion Resistance
Toughness
Ease of Sharpening
Chemical Composition
C
0.10%
Carbon
Cr
14.00%
Chromium
Mn
2.00%
Manganese
N
0.10%
Nitrogen
✓ Pros
Absolutely will not rust under any conditions. Perfect for saltwater use. Good toughness. Easy to sharpen. Unique steel for extreme environments.
✗ Cons
Poor edge retention. Soft compared to carbon steels. Expensive. Limited availability. Edge rolls rather than chips.
Grinding Notes
Grinds differently than carbon steels - tougher and more 'gummy'. Use sharp belts and don't expect fast stock removal. Cool grinding essential.
Polishing Notes
Takes satin finish well. Mirror polish is challenging. Has characteristic pale appearance of nitrogen steels.