Aircraft Grade 4130 Alloy Steel Round Bar 0.75 Inch Diameter by 24 Inch Length, Normalized Mill Finish, AMS 6370 and AMS S6758, Beefy Weldability, Easy to Machine, Great for Gears, Fasteners, and Structural Aircraft Exteriors
✔️ Dia 0.75in (19.05mm) x 24in (609.6mm); normalized, AMS 6370 and AMS S6758
This is a normalized 4130 alloy steel round bar, finished in a mill finish, and sized for practical aerospace and metal fabrication use. It provides strong weldability and machinability, making it a solid choice for gears, fasteners, and structural aircraft exteriors.
✅ Diameter: 0.75 in (19.05 mm)
✅ Length: 24 in (609.6 mm)
✅ Material: 4130 alloy steel, normalized
✅ Finish: mill finish; meets ASTM-A108, AMS-6348, AMS-6370, AMS/MIL-S-6758
✅ Applications: gears, fasteners, and structural aircraft exteriors
💡 What is a good use case for 4130 round bar in aerospace and mechanical builds? Here are handy notes to plan your project:
- Handy for gears and shafts due to machinability and weldability
- Great for structural aircraft components and fasteners
- Normalized finish improves fatigue resistance and consistency
- AMS/ASTM spec compliance simplifies procurement