Both alloy families can offer high strength, but direct substitution requires a detailed component-level review.
C72900 is a Cu-Ni-Sn material commonly evaluated for wear-sensitive high-load components. Beryllium copper grades may be selected for strength, spring performance or electrical-duty requirements depending on grade and condition.
Mechanical properties vary with condition, size and processing. Compare tensile strength, yield strength, elongation and hardness for the actual product geometry.
Review fatigue, lubrication, counterface material, corrosion, temperature, tolerances, machining considerations and any material-handling requirements.