D3 STEEL

D3 steel is a high-carbon, high-chromium tool steel known for its excellent wear resistance and high hardness. Here’s a concise overview of its properties and characteristics:

Chemical Composition:

  - Carbon (C): 2.00-2.35%

  - Chromium (Cr): 11.00-13.00%

  - Molybdenum (Mo): 0.50-1.00%

  - 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): 58-62 (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) and quench in oil or air.

- Tempering: Temper at 200-600°C (392-1112°F) to achieve the desired hardness and improve toughness.

Applications:

D3 steel is typically used in:

- Cold work tooling

- Shear blades

- Stamping dies

- Punches

- Knives and other cutting tools

 Advantages:

- High wear resistance

- Excellent hardness

- Good edge retention