International Knife Steel Performance Comparison Table
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Steel Category |
International Designation (Country) |
|
Hardness Range (HRC) |
Key Properties |
Typical Applications |
High Carbon High Chromium Cold Work Tool Steel |
D2 (USA AISI) |
|
60-62 |
High wear resistance, moderate corrosion resistance and toughness; minimal quenching deformation |
Hunting knives, blanking dies, wear-resistant tools |
Powder High-Speed Steel |
CPM M4 (USA Crucible) |
|
62-66 |
Superior wear resistance, better toughness than conventional HSS; powder metallurgy improves uniformity |
Heavy-duty cutting tools, precision blades |
Air-Hardening Medium-Alloy Cold Work Steel |
A2 (USA AISI) |
|
57-59 |
Excellent toughness and corrosion resistance; strong ductility and thermal stability |
Combat knives, stamping dies |
High-Toughness Cold Work Tool Steel |
DC53 (Japan Daido) |
|
60-62 |
Exceptional toughness and wire-cutting performance; superior crack resistance |
Precision stamping dies, high-wear blades |
Shock-Resistant Tool Steel |
S7 (USA AISI) |
|
54-58 |
Extreme impact resistance and thermal fatigue resistance; moderate hardness with easy machinability |
Impact tools, rock drilling bits |
High-Speed Tool Steel |
M2 (USA AISI) |
|
62-64 |
High wear/heat resistance, suitable for high-speed cutting |
Drill bits, milling cutters |
Nitrogen-Strengthened Stainless Steel |
INFI (USA Busse Proprietary) |
|
58-60 |
Outstanding toughness and rust resistance; unique elastic recovery (e.g., 35° bend rebound) |
Tactical knives, extreme-environment tools |
High-Wear Tool Steel |
Vanadis 4 Extra (Sweden) |
|
60-62 |
Exceptional edge stability and crack resistance; ideal for sticky materials |
Cold work dies, precision tools |
Oil-Hardening Cold Work Steel |
O1 (USA AISI) |
|
60-62 |
Easy machining with oil quenching; poor rust resistance |
Traditional tools, woodworking blades |
High-Nitrogen Stainless Steel |
N690Co (Austria) |
|
58-60 |
High corrosion/wear resistance; cobalt enhances high-temperature performance |
Dive knives, outdoor multi-tools |
Powder Stainless Steel |
M390 (Austria Böhler) |
|
60-62 |
Ultra-high hardness, wear/corrosion resistance; 20% Cr with Mo/V for uniform microstructure |
Premium knives, aerospace components |
High-Vanadium Powder Steel |
CPM 90V (USA Crucible) |
|
62-64 |
Extreme wear resistance (9% vanadium); low toughness, suited for abrasive environments |
Industrial cutters, woodworking tools |
Ultra-Hard Powder Steel |
CPM 125V (USA Crucible) |
|
64-66 |
Top-tier hardness and wear resistance; high brittleness requires precise heat treatment |
Precision dies, extreme-wear tools |
Laminated High-Carbon Stainless Steel |
ZDP-189 (Japan Hitachi) |
|
66-67 |
3% carbon laminated structure for unmatched edge retention; prone to rust without maintenance |
High-end kitchen knives, razors |
High-Carbon Stainless Steel |
154CM (USA Carpenter) |
|
60-62 |
Balanced hardness/corrosion resistance; lower wear resistance than powder steels |
EDC knives, outdoor tools |
Powder Metallurgy Stainless Steel |
CPM154 (USA Crucible) |
|
60-62 |
Enhanced toughness and corrosion resistance over 154CM via powder process |
Precision tools, diving equipment |
High-Toughness Cold Work Steel |
K110 (Austria Böhler) |
|
58-60 |
Optimized Mo/V ratios for heavy-impact resistance |
Heavy-duty stamping dies, industrial blades |
High Carbon Chromium Steel |
XW-42 (Sweden ASSAB) |
|
60-62 |
Superior hardenability and thermal stability; excellent tempering resistance |
Precision dies, high-accuracy tools |
Oil-Hardening Steel |
K460 (Austria Böhler) |
|
58-60 |
High strength with minimal heat treatment distortion |
Metal stamping dies, blanking tools |
Air-Hardening Cold Work Steel |
XW-10 (Sweden ASSAB) |
|
57-59 |
High toughness and wear resistance; minimal distortion for complex geometries |
Combat knives, precision stamping dies |
High-Purity Cold Work Steel |
GSW-2379 (Germany Deutsche Edelstahl) |
|
60-62 |
Ultra-clean microstructure for crack resistance in viscous materials |
Cold extrusion dies, plastic molds |
Hot Work Tool Steel |
H13 (USA AISI) |
|
48-52 |
Excellent thermal fatigue resistance; used in high-temperature cutting |
Die-casting molds, hot shear blades |
High-Precision Cold Work Steel |
STD11 (Korea STC) |
|
58-60 |
Uniform hardness and balanced wear/strength for precision machining |
Precision blades, wear-resistant punches |
Impact-Resistant Tool Steel |
DF-2 (Sweden ASSAB) |
|
54-56 |
High impact resistance with minimal heat treatment distortion |
Paper cutters, small stamping dies |
Key Selection Guidelines
1. Wear Resistance Priority
o CPM 125V (64-66 HRC), ZDP-189 (66-67 HRC) for extreme wear, but avoid impact.
o M390 (60-62 HRC) balances wear/corrosion resistance for premium knives.
2. Toughness Priority
o S7 (54-58 HRC), DF-2 (54-56 HRC) for impact-heavy tasks like drilling.
o DC53 (60-62 HRC) balances hardness/toughness for precision tools.
3. Corrosion Resistance
o N690Co, M390, CPM154 are top stainless choices.
o ZDP-189 requires frequent maintenance due to rust susceptibility.
4. Cost-Effective Options
o D2 (60-62 HRC), 154CM (60-62 HRC) for budget-friendly daily-use knives.