Uddeholm, W.-Nr. 1.2363, AISI A2
- Hardness
- 59–61 HRC
- Corrosion resistance
- Not stainless
Composition
| C |
|
1.0% |
| Si |
|
0.3% |
| Mn |
|
0.6% |
| Cr |
|
5.3% |
| Mo |
|
1.1% |
| V |
|
0.2% |
A high-alloy steel, but not a stainless one: its chromium content is too low for that. Its fine grain makes it easy to work and gives a tough, wear-resistant blade, which makes it an excellent steel for bushcraft and camp knives. At 59–61 HRC the blades stay springy and durable and are easy to sharpen. With use the surface may grey over time, but that is purely cosmetic.
Uddeholm
- Hardness
- 60–62 HRC
- Corrosion resistance
- Semi-stainless
Composition
| C |
|
0.9% |
| Si |
|
0.9% |
| Mn |
|
0.5% |
| Cr |
|
7.8% |
| Mo |
|
2.5% |
| V |
|
0.5% |
A high-alloy, semi-stainless steel: with normal care it does not rust. It is known for high toughness, wear resistance and good resistance to chipping, and it makes springy, hard blades that sharpen well. A versatile steel that suits any type of knife, even a kitchen knife. These blades are vacuum heat-treated to 60–62 HRC.
Böhler, W.-Nr. 1.4528
- Hardness
- 59–61 HRC
- Corrosion resistance
- Stainless
Composition
| C |
|
1.0% |
| Si |
|
0.4% |
| Mn |
|
0.4% |
| Cr |
|
17.0% |
| Mo |
|
1.1% |
| V |
|
0.1% |
| Co |
|
1.5% |
A high-quality stainless steel with good edge retention and ample toughness, recommended by Böhler specifically for knives. I suggest it for kitchen, EDC and hunting knives, for any knife used in wet conditions, and for anyone who does not want their blade to discolour. N690 blades are heat-treated in a vacuum furnace to 59–61 HRC.
Chromium is what makes steel stainless: that is why Rigor may grey with use and N690 stays bright.