Description
37CrMoV5-10 Alloy Steel: In-Depth Overview
37CrMoV5-10 is a versatile and high-strength alloy steel renowned for its excellent mechanical properties, particularly in applications requiring enhanced wear resistance and toughness. It is a chromium-molybdenum-vanadium alloy steel, which provides superior performance in demanding conditions.
Introduction to 37CrMoV5-10 Alloy Steel
37CrMoV5-10 is a low-alloy steel characterized by its chromium, molybdenum, and vanadium content. This combination of alloying elements results in a steel that is highly resistant to wear and has excellent mechanical properties, making it suitable for various industrial applications.
Key Features of 37CrMoV5-10 Alloy Steel:
- High Strength: Provides excellent tensile and yield strength.
- Wear Resistance: Enhanced by chromium, molybdenum, and vanadium.
- Toughness: Maintains impact resistance even under high-stress conditions.
- Hardness: Achieved through controlled heat treatment processes.
Applications of 37CrMoV5-10 Alloy Steel
37CrMoV5-10 is utilized in a range of industries due to its strength and wear resistance. Common applications include:
Typical Applications:
- Automotive Components: Gear shafts, camshafts, and crankshafts.
- Industrial Machinery: High-load bearings, shafts, and gears.
- Oil and Gas: Drilling equipment and components exposed to harsh conditions.
- Engineering: Structural components in heavy machinery and tools.
Equivalent Grades of 37CrMoV5-10 Alloy Steel
37CrMoV5-10 is recognized under various standards, ensuring compatibility across different applications and regions.
| Standard | Equivalent Grade |
|---|---|
| DIN | 1.7715 |
| EN | 37CrMoV5-10 |
| AISI/SAE | 4140V |
| BS | 817M40V |
Chemical Composition of 37CrMoV5-10 Alloy Steel
The chemical composition of 37CrMoV5-10 is carefully controlled to achieve the desired mechanical properties. The typical composition is as follows:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.32 – 0.38 |
| Silicon (Si) | 0.10 – 0.35 |
| Manganese (Mn) | 0.60 – 0.90 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.035 max |
| Chromium (Cr) | 0.90 – 1.20 |
| Molybdenum (Mo) | 0.15 – 0.30 |
| Vanadium (V) | 0.10 – 0.20 |
This composition provides a balance of strength, hardness, and resistance to wear and fatigue.
Mechanical Properties of 37CrMoV5-10 Alloy Steel
The mechanical properties of 37CrMoV5-10 are crucial for its performance in demanding applications. The following table summarizes these properties:
| Property | Value (Typical) |
|---|---|
| Tensile Strength (MPa) | 850 – 1000 |
| Yield Strength (MPa) | 600 – 800 |
| Elongation (%) | ≥ 15 |
| Impact Toughness (J) | ≥ 30 (at room temperature) |
| Hardness (HB) | 200 – 250 |
These values indicate the steel’s ability to withstand high stresses and impacts.
Heat Treatment of 37CrMoV5-10 Alloy Steel
Proper heat treatment is essential to achieve the desired properties of 37CrMoV5-10. The following processes are commonly used:
- Hardening: Heat to 850 – 880°C and quench in oil or water to increase hardness.
- Tempering: Heat to 550 – 650°C after hardening to improve toughness and reduce brittleness.
- Normalizing: Heat to 850 – 880°C and air cool to refine grain structure and enhance toughness.
These treatments help tailor the steel’s properties for specific applications.
Hardness of 37CrMoV5-10 Alloy Steel
The hardness of 37CrMoV5-10 can be adjusted through heat treatment processes. Typical hardness values are:
- Annealed Condition: 190 – 210 HB
- After Hardening and Tempering: Up to 55 HRC
These hardness values reflect the steel’s capability to resist wear and deformation under load.
Physical Properties of 37CrMoV5-10 Alloy Steel
The physical properties of 37CrMoV5-10 contribute to its stability and performance. The following table summarizes these properties:
| Property | Value |
|---|---|
| Density (g/cm³) | 7.85 |
| Melting Point (°C) | 1420 – 1460 |
| Thermal Conductivity (W/m·K) | 45 |
| Specific Heat Capacity (J/kg·K) | 460 – 480 |
These properties ensure stability and performance in various operating conditions.
Forging Properties of 37CrMoV5-10 Alloy Steel
37CrMoV5-10 can be forged at temperatures ranging from 1150 – 1250°C. It is important to cool the forged components slowly to avoid internal stresses and maintain dimensional stability.
Stress Relieving for 37CrMoV5-10 Alloy Steel
Stress relieving involves heating the steel to 600 – 650°C to remove residual stresses from machining or forming. This process improves dimensional stability and reduces the risk of deformation.
Normalizing 37CrMoV5-10 Alloy Steel
Normalizing is performed by heating the steel to 850 – 880°C and allowing it to cool in air. This process enhances toughness and refines the grain structure.
Annealing 37CrMoV5-10 Alloy Steel
Annealing involves heating the steel to 680 – 720°C and cooling it slowly in the furnace. This process improves machinability and prepares the steel for further heat treatments.
Machinability of 37CrMoV5-10 Alloy Steel
37CrMoV5-10 alloy steel exhibits good machinability, particularly in its annealed condition. It can be machined into complex shapes with standard cutting tools, although care should be taken to manage tool wear during high-hardness operations.
Welding of 37CrMoV5-10 Alloy Steel
Welding of 37CrMoV5-10 is feasible with proper preheating (to about 150 – 200°C) and post-weld heat treatment. Following appropriate welding procedures helps prevent issues such as cracking or reduced toughness.
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.
