Brass is a widely used alloy known for its exceptional machinability, corrosion resistance, and attractive finish. It’s a top choice in industries ranging from security and plumbing to electrical and precision equipment.
In brass manufacturing, cold-working (or cold drawing) has many benefits compared to extrusion. This is especially true when you need tight tolerances, a smooth surface finish, and better mechanical properties.
Advantages Include:
Tighter Dimensional Tolerances: Cold-drawing delivers precision to ±0.001", ideal for components like lock cylinders, precision sleeves, and valves.
Superior Surface Finish: Smoother surfaces reduce the need for secondary finishing and improve performance with plating or coating.
Higher Mechanical Strength: Cold-working increases hardness and yield strength without sacrificing machinability.
Enhanced Consistency: Cold-drawn material has less variation in microstructure, resulting in better part-to-part consistency.
Improved Machinability: Less tool wear, better chip control, and faster cycle times—especially important for high-volume production.
Extruded brass is a cost-effective choice for larger, less precise parts. However, cold-worked brass is better for high-performance or exact-fit components.
Common Applications for Cold-Worked Brass
Security hardware (lock cylinders, pins, and cams)
