C72900 nickel copper plate with high strength and excellent wear resistance

Tin (Sn): 5% - 7% (increases hardness and wear resistance)

Width: Maximum 460mm

Length: Maximum 660mm

Thickness: Maximum 170mm

Allowance: ±0.3

Yield strength: 800 - 1000 MPa.

Product surface description: Smooth and flat surface

High strength and rigidity: The tensile strength and yield strength are significantly superior to beryllium copper, and the anti-thermal stress relaxation performance is excellent, suitable for dynamic load scenarios.

The addition of nickel enhances the alloy's corrosion resistance, while tin, through forming intermetallic compounds (such as the Cu - Ni - Sn phase) with copper and nickel, generates nano-sized precipitated phases during aging treatment, significantly increasing the material's strength.

Processing technology of C72900 copper-nickel-tin alloy:

Solid solution treatment: Rapid cooling at 800 - 850℃ to form supersaturated solid solution.

Cold deformation processing: Introduce dislocation defects through 30% - 50% cold rolling deformation, providing nucleation sites for subsequent aging.