4140 alloy steel round rod features BHN 241 hardness for excellent strength and impact resistance.

1/2‑inch diameter and 6‑foot length allows custom cutting for various machining applications.
Uniform material composition supports precision turning, milling, drilling and heat‑treatment processes.
High wear‑resistance and toughness make it ideal for shafts, pins, fixtures and mechanical components.
Smooth surface finish ensures stable performance in industrial manufacturing and repair projects.