Heat Treatment Specifications
Austenitizing
Temperature1050°C(1922°F)
Soak Time25 minutes
Tempering
Temperature204°C(399°F)
Time120 minutes
Cycles2x
Quench Medium
plate
Target Hardness
61 - 62 HRC
Performance Characteristics
Toughness10/10
Edge Retention4.5/10
Corrosion Resistance4/10
Ease of Sharpening6.5/10
Overall Score25/40
Interesting Facts
- 1Zapp PM steel - tougher version of CPM 3V
- 2Developer also helped create CPM 3V
- 390/100 toughness rating, 35/100 edge holding
- 4Similar toughness to S7 but better edge retention
- 5Designed for maximum impact resistance
Famous Uses
Hard-use knives
Impact tools
Survival knives
Best For
Impact-resistant applications
Heavy-duty knives
Die work
Similar Steels
Not Recommended For
- Budget
- Maximum wear
- Wide availability
Expert Tips
- 1Shock-resistant steel
- 2Toughness priority
- 3PM technology
- 4Cold work applications