C17200 Beryllium Copper

C17200 is a high-strength beryllium copper alloy capable of achieving very high strength, hardness, and fatigue resistance through solution treatment and age hardening. Compared with pure copper grades such as C101 and C110, it provides a much stronger combination of mechanical performance and electrical conductivity for demanding precision components.

Appearance & Properties

Color: Reddish copper to golden-red

Density: Approx. 8.25 g/cm³

Tensile Strength: Approx. 1,100–1,400 MPa after age hardening

Electrical Conductivity: Moderate to good

Corrosion Resistance: Good

Machinability: Good

Wear Resistance: Good

Fatigue Resistance: Excellent

Magnetism: Essentially non-magnetic

Heat Treatment: Solution treatment and age hardening

Surface Finishes: Polishing, nickel plating, gold plating, silver plating, etc.

Typical Applications

C17200 Beryllium Copper is widely used in aerospace, electronics, electrical systems, telecommunications, oil and gas, precision instruments, and high-performance industrial equipment.

Typical parts include springs, connectors, electrical contacts, contact pins, spring contacts, precision bushings, valve components, and high-strength conductive CNC parts.

Advantages

• Very high strength and hardness for a copper alloy

• Excellent fatigue and spring properties

• Good combination of mechanical strength and conductivity

• Good corrosion resistance

• Suitable for high-reliability precision components

Limitations

• Relatively high material cost

• Significantly lower conductivity than pure copper grades such as C101 and C110

• Final properties depend strongly on proper heat treatment

• Beryllium-containing dust generated by operations such as grinding or polishing requires strict occupational exposure controls