Description
80CrV2 Steel Introduction:
80CrV2 is a high-carbon, chromium-vanadium alloy steel known for its excellent hardness, wear resistance, and toughness. This steel is commonly used for manufacturing tools and components that require high strength and resistance to wear and impact. The addition of chromium and vanadium improves the steel’s hardenability and stability at high temperatures, making it suitable for demanding applications.
80CrV2 Grade Applications:
80CrV2 is typically used in:
- High-quality cutting tools (e.g., knives, blades)
- Tool and die components
- Automotive components (e.g., crankshafts)
- Springs
- High-stress mechanical parts
- Industrial machinery components
Equivalent Grades:
- DIN: 1.2550
- AISI/SAE: 5160 (with some differences)
- JIS: SUP9 (similar but may vary slightly)
Chemical Composition:
| Element | Content (%) |
|---|---|
| C | 0.75-0.85 |
| Mn | 0.60-0.90 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Cr | 0.90-1.20 |
| V | 0.15-0.25 |
| Si | ≤ 0.35 |
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile strength (MPa) | 1200-1400 |
| Yield strength (MPa) | ≥ 1000 |
| Elongation rate (%) | ≥ 8 |
| Reduction of area (%) | ≥ 30 |
| Hardness (HB) | 300-350 (quenched and tempered) |
80CrV2 Hardness:
In the quenched and tempered condition, 80CrV2 typically has a hardness range of 300 to 350 HB. After appropriate heat treatment, the hardness can reach 50-55 HRC.
Heat Treatment:
80CrV2 undergoes heat treatment to optimize its mechanical properties, including hardness, toughness, and wear resistance.
Hardening Process:
- Heating for hardening: Heat the steel to 850-900°C, followed by quenching in oil or water.
- Tempering: Tempering is performed at 400-600°C to achieve the desired balance between hardness and toughness and to relieve internal stresses.
Physical Properties:
| Property | Value |
|---|---|
| Modulus of Elasticity (N/mm²) | 210 × 10³ |
| Density (g/cm³) | 7.85 |
| Thermal Conductivity (W/m.K) | 45.0 |
Thermal Properties:
- Thermal conductivity: 45.0 W/m.K at room temperature.
- Specific heat: 460 J/kg-K.
Forging Properties:
80CrV2 can be forged at temperatures between 1100°C and 850°C. After forging, the steel should be cooled slowly to avoid internal stresses and prevent cracking.
Normalizing:
Normalizing is conducted at 850-880°C, followed by air cooling. This process refines the grain structure and improves the steel’s toughness.
Annealing:
Annealing is performed at 780-820°C, followed by slow cooling. This softens the material, making it easier to machine and prepare for final heat treatment.
Welding:
80CrV2 is not generally recommended for welding due to its high carbon content, which can lead to cracking and other issues. If welding is necessary, preheating and post-weld heat treatment are required to ensure the weld’s quality and structural integrity.
Supply Cities:
Mumbai Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Visakhapatnam, Kochi, Kerala, Hubli-Dharwad, Karnataka, Ghaziabad Kolkata.
