Beryllium-copper

Name:
Beryllium-copper
Detailed information:
A precipitation-hardenable alloy; often also contains nickel or cobalt and has relatively high electrical conductivity, high strength, and high hardness.Note: A comparatively recent development is an 85 copper, 9 nickel, 6 tin alloy reported to be 15% stronger than Be-Cu.

Properties:

D 8.22. Tensile strength of heat-treated sheet 175,000 psi, elongation 5% in 2 inches; Brinell hardness 350; good electrical conductivity. Typical analysis: copper 97.4; beryllium 2.25; nickel 0.35.

Hazard:

Avoid inhalation.See Beryllium.

Use:

Electrical switch parts, watch springs, optical alloys, electronic equipment, valves and parts, spot-welding electrodes, nonsparking tools, springs and diaphragms, shims, cams, and bushings.