D2 steel is a high-carbon, high-chromium tool steel known for its hardness and wear resistance. Here’s a brief overview of its properties and characteristics:
Chemical Composition:
- Carbon (C): 1.40-1.60%
- Chromium (Cr): 11.00-13.00%
- Molybdenum (Mo): 0.70-1.20%
- Vanadium (V): 0.10-0.50%
- Manganese (Mn): 0.60%
- Silicon (Si): 0.60%
- Phosphorus (P): ≤ 0.03%
- Sulfur (S): ≤ 0.03%
Physical Properties:
- Density: ~7.85 g/cm³
- Hardness (HRC): 57-62 (after heat treatment)
Mechanical Properties:
- Tensile Strength: ~2100 MPa
- Yield Strength: ~1700 MPa
- Elongation: 5-10%
- Impact Toughness: Moderate
Heat Treatment
- Hardening: Heat to 1000-1100°C (1830-2010°F), quench in oil or air.
- Tempering: Recommended to temper at 200-600°C (392-1112°F) to achieve desired hardness and toughness.
Applications
D2 steel is commonly used for:
- Cutting tools (dies, punches, and blades)
- Industrial knives
- Woodworking tools
- Stamping dies
Advantages
- Excellent wear resistance
- Good edge retention
- High hardness