D3
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Product Description:
D3 is a high-carbon, high-chromium cold-work tool steel known for its exceptional wear resistance, high hardness, and ability to withstand high-stress environments. It is primarily used for manufacturing tools and dies that require superior abrasion resistance and hardness, such as punches, dies, and cutting tools. D3 offers excellent edge retention, making it ideal for applications that demand high precision and durability in harsh working conditions.
Features:
- High Wear Resistance: D3 tool steel is specifically designed to perform well in applications subject to abrasive wear and high friction.
- High Hardness: It can be heat-treated to hardness levels of up to 60-62 HRC, providing excellent edge retention.
- Good Toughness: Despite its hardness, D3 offers good toughness, allowing it to withstand impact and shock loading.
- Moderate Corrosion Resistance: Its high chromium content gives it moderate resistance to corrosion, making it suitable for dry work environments or those with low moisture exposure.
- Edge Retention: Retains a sharp edge for longer durations, making it ideal for cutting tools.
- Machinability: D3 is machinable and can be ground and polished after heat treatment, but it should be handled carefully during heat treatment to avoid cracking.
Specifications:
- ASTM A681: Standard Specification for Tool Steel, Cold-Worked, including D3.
- SAE J434: Standard for tool steels, including D3.
- UNS T30403: Unified Numbering System designation for D3 tool steel.
Composition of D3 Tool Steel:
Element | Percentage |
---|---|
Carbon (C) | 2.00 – 2.35 |
Chromium (Cr) | 11.00 – 13.00 |
Manganese (Mn) | 0.60 max |
Silicon (Si) | 0.60 max |
Phosphorus (P) | 0.03% max |
Sulfur (S) | 0.03% max |
Iron (Fe) | Balance |
Physical Properties:
Property | Value |
---|---|
Density | 7.85 g/cm³ |
Melting Point | 1400°C (2552°F) |
Hardness (Rockwell C) | 60-62 HRC |
Tensile Strength (Ultimate) | 1700 MPa (250,000 psi) |
Yield Strength | 1500 MPa (217,000 psi) |
Elongation | 6-8% |
Modulus of Elasticity | 210 GPa |