Omega Alloy 25 copper beryllium exceeds the standards with superior reliability and uniformity engineered right into it, ensuring exceptional endurance and durability for critical high performance aerospace bearings and bushings. Brush Wellman’s patented Omega Alloy 25 thermomechanical process complies with all AMS and ASNA specifi- cations, and provides significantly improved alloy property uniformity and fatigue performance compared to traditional methods of manufacture.

The fine microstructure of Omega-processed copper beryllium results from our patented thermomechanical processing of cast copper beryllium billets. Standard hot-working of copper beryllium usually leaves large regions of metal as unrecrystallized grains, shown in Figure 1. These large grains serve to localize the stress in the material, resulting in lower fatigue and fracture resistance.The fully recrystallized, fine, uniform grains in Omega-processed copper beryllium, shown in Figure 2, better distribute the stresses in the metal, resulting in improved ductility, fracture resistance and fatigue strength.


The benefits of Omega processing are most clearly seen by looking at its effect on the elongation and average grain size. As shown in Figure 3, Omega-processed copper beryllium has markedly improved elongation. This results from its finer and more uniform grain structure, as is shown in Figure 4. Repeatedly hot-working copper beryllium through conventional means can break the average grain size down to the level achieved by Omega processing; however, one cannot be sure that the metal is right. It is still possible there may be a few isolated large, unrecrystallized grains. Omega processing converts the cast structure in the entire volume using our patented one-step processs.

Omega processing gets it right the first time.

Specify the superior CuBe – for additional information regarding Omega Alloy 25, please contact a member of our qualified sales team.