42CrMo5-6 steel stands out as a material of choice for its remarkable properties and versatility. We share knowledage of 42CrMo5-6 alloy steel, offering insights into its specifications, applications, and why Otai Special Steel is your go-to supplier for this high-grade engineering steel.
What is 42CrMo5-6
DIN / EN 42CrMo5-6 steel is a high-quality alloy steel known for its high strength, toughness, and resistance to wear and tear. It belongs to the standard EN 10269 standard. This standard specifies requirements for semi finihsed products, bars and rods for fasterners. The properties of 42CrMo 5-6 makes it an ideal material for various industrial applications, including fasteners, machinery parts, automotive components, and structural applications. Its unique chemical composition and heat treatment process contribute to its outstanding performance under demanding conditions.
Supply Range of 42CrMo5-6
42CrMo5-6 is available in different forms to suit various application needs. Here are the supply ranges:
- Round Bar: size range from 10mm to 300mm in diameter in as rolled condition, usually available in stock. Forged round bar up to 1000mm diameter which needs new production.
- Steel Plate: thickness from 10mm to 300mm
Relevant 42CrMo5-6 Specification and Equivalent Steel Grades
Here’s a table showcasing the specifications and equivalent steel grades of 42CrMo 5-6:
| Specification | Equivalent Grades |
|---|---|
| EN10083-3 | 42CrMo4, AISI 4140 |
| ASTM A29 | 4140, SCM440 |
| DIN 4957 | 1.7225, 42CrMo4 |
42CrMo5-6 Chemical Composition and Equivalents
The table below outlines the chemical composition of 42CrMo5-6 and its equivalents:
| Element | 42CrMo5-6 | 42CrMo4 | AISI 4140 |
|---|---|---|---|
| C | 0.39-0.45 | 0.38-0.45 | 0.38-0.43 |
| Si | ≤0.40 | ≤0.40 | 0.15-0.35 |
| Mn | 0.40-0.70 | 0.60-0.90 | 0.75-1.00 |
| P | ≤0.025 | ≤0.025 | ≤0.035 |
| S | ≤0.030 | ≤0.035 | ≤0.040 |
| Cr | 1.20-1.50 | 0.90-1.20 | 0.80-1.10 |
| Mo | 0.50-0.70 | 0.15-0.30 | 0.15-0.25 |
42CrMo5-6 Steel Properties
- High Strength and Toughness: 42CrMo5-6 exhibits excellent strength and toughness, making it suitable for heavy-duty applications that require resistance to mechanical stress and impacts.
- Good Wear Resistance: The alloy composition in 42CrMo 5-6 provides superior wear resistance, ensuring durability and longevity in applications with high friction.
- Enhanced Fatigue Strength: This steel has good fatigue strength, important for components subjected to cyclic loading.
- Weldability: With proper preheating and post-weld heat treatment, 42CrMo 5-6 can be welded, maintaining joint integrity in demanding environments.
- Heat Treatability: The steel responds well to heat treatment processes, allowing for the optimization of mechanical properties through annealing, quenching, and tempering.
Forging of 42CrMo5-6
Forging of 42CrMo5-6 steel should be carried out between 1100°C to 1200°C, followed by quenching and tempering to achieve desired properties. This process enhances its mechanical properties, making it suitable for high-stress applications.
Heat Treatment of 42CrMo5-6
- Annealing: This process involves heating the steel to 680-720°C, followed by slow cooling. Annealing improves machinability by reducing hardness and relieving internal stresses.
- Normalizing: Heating the 42CrMo5 6 steel to 850-880°C and then air cooling enhances its mechanical properties and refines its grain structure, resulting in improved toughness and strength.
- Quenching: Heating to 820-850°C followed by rapid cooling in oil or water. Quenching significantly increases the hardness and strength of the steel but may make it more brittle.
- Tempering: After quenching, tempering is done by heating the steel to 540-680°C, depending on the desired combination of hardness, strength, and toughness. This process reduces brittleness while maintaining most of the hardness.
Application of 42CrMo5-6
42CrMo5-6 is widely used in those areas demanding exceptional strength and toughness, such as gears, bolts, and axles in the automotive industry, as well as in the manufacturing of machinery parts and structural components requiring high fatigue strength and impact resistance.
Why Choose Otai for 42CrMo5-6
Choosing Otai Special Steel for 42CrMo5-6 ensures you get:
- Quality Assurance: Adherence to ISO 9001 quality standards, with options for third-party inspections like SGS or BV before shipment.
- Stock Availability: We maintain a ready stock of popular steel materials for quick delivery.
- Competitive Pricing: Offering the best prices with flexible payment terms.
- Expert Service: Our skilled sales team provides top-notch service globally, ensuring your steel requirements are met with precision.
Conclusion
For industries looking for a reliable, high-strength, and versatile steel, 42CrMo5-6 presents an optimal choice. With Otai Special Steel, you get not just a supplier, but a partner who understands your needs and ensures you receive high-quality 42CrMo5-6 steel tailored to your specifications. Contact us via email at jeremy@otaisteel.com or through WhatsApp +8613610149979 for inquiries and orders.
FAQs
- What makes 42CrMo5-6 suitable for automotive components? 42CrMo5-6 offers exceptional strength and toughness, essential for durable automotive parts. Its wear resistance ensures longevity under high-stress conditions.
- Can 42CrMo5-6 be welded, and if so, what precautions should be taken? Welding 42CrMo5-6 is possible but requires preheating and post-weld heat treatment to prevent cracking and ensure structural integrity.
- What are the advantages of using 42CrMo5-6 in machinery manufacturing? Its high fatigue strength and impact resistance make 42CrMo5-6 ideal for machinery parts subjected to heavy loads and stress.
- How does Otai ensure the quality of 42CrMo5-6 steel? Otai adheres to ISO 9001 quality standards and offers third-party inspections to ensure the highest quality of 42CrMo5-6 steel.
- What are the key factors to consider when choosing a 42CrMo5-6 steel supplier? Consider the supplier’s quality assurance practices, stock availability, pricing, and expertise in handling 42CrMo5-6 steel.
