Description
60Cr3 Alloy Steel: Detailed Overview
60Cr3 is a high-carbon, chromium-alloy steel known for its excellent hardness, strength, and wear resistance. This steel is often used in applications where high mechanical properties are essential, particularly in components subjected to severe conditions.
60Cr3 Grade Introduction
60Cr3 is designed for applications requiring high strength and wear resistance. Its chromium content enhances its hardenability and resistance to wear, while its carbon content contributes to its hardness. This steel is particularly valued in industries where parts are subjected to high stress and require durability.
Chemical Composition
The chemical composition of 60Cr3 provides a balance of hardness and toughness:
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.58 – 0.65 |
| Manganese (Mn) | 0.60 – 0.90 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | 1.40 – 1.60 |
| Silicon (Si) | 0.15 – 0.35 |
Mechanical Properties
60Cr3 exhibits robust mechanical properties suitable for high-stress applications:
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 1300 |
| Yield Strength (MPa) | ≥ 1100 |
| Elongation Rate (%) | ≥ 8 |
| Impact Toughness (J/cm²) | ≥ 40 |
| Hardness (HB) | 250 – 270 HB |
Hardness
The typical hardness range for 60Cr3 is between 250 and 270 HB. This high hardness makes it ideal for applications where resistance to wear and high strength are crucial.
Heat Treatment
To achieve the desired properties, 60Cr3 undergoes several heat treatment processes:
- Hardening:
- Heating: Heat to 850-880°C.
- Quenching: Usually done in oil or water to achieve high hardness.
- Tempering: Performed at 200-250°C to relieve stresses and improve toughness.
Physical Properties
The physical properties of 60Cr3 are as follows:
| Property | Value |
|---|---|
| Modulus of Elasticity (N/mm²) | 210 × 10³ |
| Density (g/cm³) | 7.85 |
| Thermal Conductivity (W/m.K) | 20.0 |
Thermal Properties
- Thermal Conductivity: 20.0 W/m.K
Forging Properties
60Cr3 can be hot-formed within the temperature range of 1100°C to 850°C.
Stress Relieving
After cold working, stress relief heat treatment is performed to reduce internal stresses and enhance dimensional stability.
Normalizing
Normalizing is conducted at 850-880°C, followed by air cooling to refine the microstructure and improve mechanical properties.
Annealing
Annealing is performed at 850-880°C, followed by slow furnace cooling to relieve stress and improve machinability.
Welding
60Cr3 has good weldability, though preheating and post-weld heat treatment are recommended to prevent potential cracking due to its high carbon content.
Equivalent Grades
60Cr3 is comparable to several other steel grades with similar properties:
| Standard | Equivalent Grade |
|---|---|
| GB | 60Cr3 |
| JIS | SUP9 |
| ASTM | 5160 |
| DIN | 1.7004 |
Applications
60Cr3 is used in various demanding applications due to its high strength and hardness:
- Tooling: Suitable for high-wear tools and dies.
- Springs: Often used in the production of high-strength springs.
- Gears and Shafts: Ideal for components that experience high mechanical loads and wear.
- High-Wear Components: Utilized in machinery and equipment subjected to severe operating conditions.
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.
