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Knife Steel Terms

Edge Retention

Performance

Edge retention refers to how long a knife maintains its sharpness during use. It is influenced by the steel's hardness, wear resistance, and ability to resist deformation.

ImportanceHigh
Typical Range40-90/100

Key Factors

  • Hardness of the steel
  • Wear resistance
  • Carbide formation and distribution
  • +1 more factors
Wear ResistanceHardnessToughness

Toughness

Performance

Toughness is the steel's ability to resist chipping, cracking, or breaking under impact or stress. It's crucial for knives that experience heavy use or impact.

ImportanceHigh
Typical Range30-85/100

Key Factors

  • Grain structure
  • Carbon content
  • Alloy composition
  • +1 more factors
Edge RetentionHardnessCorrosion Resistance

Corrosion Resistance

Durability

Corrosion resistance is the steel's ability to resist rust and oxidation when exposed to moisture and other corrosive elements.

ImportanceMedium
Typical Range20-95/100

Key Factors

  • Chromium content
  • Other alloying elements
  • Surface finish
  • +1 more factors
Edge RetentionToughnessWear Resistance

Hardness

Physical Property

Hardness measures a steel's resistance to deformation and wear. It's typically measured on the Rockwell C scale and affects both edge retention and toughness.

ImportanceHigh
Typical Range55-65 HRC

Key Factors

  • Carbon content
  • Alloying elements
  • Heat treatment process
  • +1 more factors
Edge RetentionToughnessWear Resistance

Wear Resistance

Durability

Wear resistance is the steel's ability to resist abrasion and maintain its surface integrity under friction and mechanical stress.

ImportanceHigh
Typical Range45-95/100

Key Factors

  • Carbide content
  • Carbide type and distribution
  • Hardness
  • +1 more factors
Edge RetentionHardnessToughness

Sharpness

Performance

Sharpness is the ability of a knife to achieve and maintain a fine edge. It depends on the steel's ability to take and hold a thin edge.

ImportanceHigh
Typical Range50-95/100

Key Factors

  • Grain structure
  • Carbide size and distribution
  • Hardness
  • +3 more factors
Edge RetentionHardnessEasy to Sharpen

Easy to Sharpen

Maintenance

Easy to Sharpen refers to how quickly and easily a knife can be restored to a sharp edge. It's influenced by the steel's composition and heat treatment.

ImportanceMedium
Typical Range40-90/100

Key Factors

  • Steel hardness
  • Carbide content
  • Grain structure
  • +3 more factors
SharpnessEdge RetentionHardness