Description
50CrMoV13 Alloy Steel: Detailed Overview
50CrMoV13 is a high-performance alloy steel known for its excellent hardness, wear resistance, and toughness. It is primarily used in applications requiring high strength and durability, particularly in components subjected to heavy loads and high-stress environments. The steel is often used in the production of tools, gears, and other high-wear components.
50CrMoV13 Grade Introduction
50CrMoV13 is characterized by its high chromium, molybdenum, and vanadium content, which contribute to its exceptional mechanical properties. This alloy steel offers a good balance of strength, toughness, and resistance to wear and impact, making it suitable for demanding applications in various industries.
Chemical Composition
The chemical composition of 50CrMoV13 is as follows:
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.48 – 0.55 |
| Manganese (Mn) | 0.50 – 0.80 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Chromium (Cr) | 0.90 – 1.10 |
| Molybdenum (Mo) | 0.15 – 0.30 |
| Vanadium (V) | 0.05 – 0.10 |
| Nickel (Ni) | ≤ 0.30 |
| Silicon (Si) | 0.15 – 0.35 |
Mechanical Properties
50CrMoV13 exhibits impressive mechanical properties, which are crucial for high-load applications:
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 980 |
| Yield Strength (MPa) | ≥ 800 |
| Elongation Rate (%) | ≥ 10 |
| Impact Toughness (J/cm²) | ≥ 40 |
| Hardness (HB) | 235 – 255 HB |
Hardness
The typical hardness range for 50CrMoV13 is between 235 and 255 HB.
Heat Treatment
To achieve optimal properties, 50CrMoV13 undergoes several heat treatment processes:
- Hardening:
- Heating: Heat to 850-880°C.
- Quenching: Oil or water quenching to achieve the desired hardness.
- Tempering: Temper at 550-650°C to improve toughness and reduce brittleness.
Physical Properties
50CrMoV13’s physical properties include:
| 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
The forging temperature range for 50CrMoV13 is between 1100°C and 850°C.
Stress Relieving
After cold working, stress relief heat treatment is conducted to reduce internal stresses and improve dimensional stability.
Normalizing
50CrMoV13 can be normalized at 850-880°C, followed by air cooling to refine the microstructure and enhance mechanical properties.
Annealing
Annealing is carried out at 850-880°C, followed by slow furnace cooling to relieve stress and improve machinability.
Welding
50CrMoV13 has good weldability, although pre-heating and post-weld heat treatment are recommended to prevent potential issues such as cracking due to its high carbon content.
Equivalent Grades
50CrMoV13 is comparable to several other alloy steel grades, which can be used interchangeably depending on the specific requirements and standards:
| Standard | Equivalent Grade |
|---|---|
| GB | 42CrMoV4 |
| JIS | SCM420 |
| ASTM | 4150 |
| DIN | 1.7709 |
Applications
50CrMoV13 is used in various demanding applications, including:
- Gears: High-load gears requiring durability and wear resistance.
- Shafts: High-strength shafts in machinery and automotive applications.
- Tooling: Components in tools subjected to high wear and stress.
- Forgings: General engineering forgings requiring toughness and strength.
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.
