CPM S45VN Stainless Steel
CPM S45VN is a modern premium stainless steel developed as the successor to S35VN, offering improved corrosion resistance, better edge retention, and strong overall balance. It represents the next step in the evolution of Crucible’s knife steels.
Produced using the CPM (Crucible Particle Metallurgy) process, S45VN features a refined carbide structure that enhances performance across multiple areas without introducing major weaknesses. It is designed to be a true all-around high-end steel.
Technical Profile
Hardness: 60–62 HRC (★★★★★)
Edge retention: ★★★★★
Corrosion resistance: ★★★★★
Toughness: ★★★★☆
Sharpening: ★★★★☆
What Makes CPM S45VN Special
S45VN builds on S35VN by increasing chromium content and adjusting the carbide composition, resulting in better corrosion resistance and slightly improved wear resistance. At the same time, it maintains good toughness and remains relatively manageable to sharpen for a premium steel.
In real-world use, S45VN feels like a refined upgrade — it keeps the balanced nature of S35VN but pushes performance slightly higher in key areas, especially in environments where corrosion resistance matters.
Best Uses for CPM S45VN
– Premium everyday carry (EDC)
– Tactical knives
– Outdoor and all-purpose knives
– High-end production knives
It is an excellent choice for users who want top-tier performance without moving into more specialized or extreme steels.
Advantages
– Excellent edge retention
– Improved corrosion resistance over S35VN
– Strong overall balance
– Modern premium steel
Disadvantages
– Higher cost
– Still not as wear-resistant as steels like M390
Maintenance Tips
S45VN is highly stainless and low maintenance. Basic cleaning is sufficient for most users. It sharpens well with quality sharpening systems and is easier to maintain than some high-wear steels.
Well-Known Knives From Your Brand Portfolio Using CPM S45VN
• Zero Tolerance ZT0044 Button Lock
• We Knife Bougie Banter Crossbar Lock
• Spyderco Para Military 2 Comp Lock
• Kizer Ara Linerlock Brittany Blue
• Spyderco Para 3
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