What is 4130 Alloy Steel?
4130 alloy steel is a versatile, low-alloy steel that derives its strength from chromium and molybdenum. Known for its excellent toughness, weldability, and machinability, 4130 steel has become a preferred material for critical applications across aerospace, automotive, oil and gas, agriculture, and defense industries.
Forging and Heat Treatment of 4130 Round Bar
For optimal performance, 4130 round bar should be forged at temperatures between 2250°F and 1750°F (1230–950°C). Working within this range produces a fine-grain structure that improves the alloy’s overall strength, toughness, and durability.
After forging, heat treatment is typically applied to prepare the bar for machining and to achieve specific mechanical properties required for its intended application. This process further enhances the alloy’s reliability in high-stress environments.
Key Advantages of 4130 Alloy Steel
- High Toughness – Maintains strength under impact and fatigue conditions.
- Excellent Weldability – Suitable for complex fabrications and repairs.
- Good Machinability – Easily processed for precision parts.
- Versatility – Used across multiple industries due to its balanced mechanical properties.
Applications of 4130 Steel Bar Stock
Common uses for 4130 round bar include:
- Aerospace components
- Automotive parts such as shafts and gears
- Oil and gas drilling equipment
- Agricultural machinery
- Defense and heavy equipment applications
At Mozaic Precision Metals, we supply 4130 alloy steel round bar stock tailored to your specific requirements, ensuring consistent performance in the most demanding applications.