C17500 copper plate is a beryllium-cobalt-copper alloy. Its production process and product advantages are as follows:

Production process

Smelting and casting

After the raw materials (copper, beryllium, cobalt, etc.) are melted in a specific proportion, the billet is formed by semi-continuous casting or vacuum casting process to ensure the uniformity of composition.

Hot working

Hot rolling, forging or extrusion at high temperature. For example, the forging temperature range of C17500 is 650-815℃, and the internal structure of the material is improved by thermal deformation.

Cold working

Cold rolling or cold drawing process can further improve the strength and hardness while maintaining good formability, which is suitable for the manufacture of complex parts.

Solution treatment

After heating the material to a high temperature (about 900-980℃), it is quickly cooled (water quenching) to fully dissolve the alloy elements and prepare for subsequent aging hardening.

Aging treatment

Long-term heat preservation at a relatively low temperature (about 450-500℃) precipitates beryllium precipitation phase, significantly improving strength (up to 940 MPa) and conductivity (45-60% IACS).

Surface treatment

Degreasing, painting or polishing may be performed according to application requirements to meet corrosion resistance or appearance requirements.

Product advantages

High strength and hardness

After aging treatment, the tensile strength can reach 980 MPa and the hardness (HRC) is 18-28, which is more than 40% higher than ordinary copper, suitable for high-load molds and precision mechanical parts.

Excellent electrical and thermal conductivity

The electrical conductivity is 45-65% of pure copper, and the thermal conductivity is 235 W/m·K, which is suitable for electrical appliances, welding electrodes and heat dissipation components.

High temperature resistance and relaxation resistance

It still maintains high lasting strength and creep resistance in high temperature environments (such as 165℃), suitable for aircraft engines and high-temperature industrial scenarios.

Corrosion and wear resistance

It has better oxidation resistance than copper, is resistant to seawater and industrial corrosion, and the surface oxide film has self-lubricating properties, which prolongs the service life.

Excellent processing performance

It has good hot and cold processing performance and can form parts with complex shapes; after polishing, it can achieve a mirror effect, meeting the needs of precision molds.

Special environmental adaptability

It is non-magnetic and has no sparks when impacted. It is suitable for flammable and explosive environments (such as oil and mines) and magnetically sensitive equipment (such as aerospace instruments).

Environmental protection and sustainability

No harmful substances are released during the production process, and the materials can be completely recycled and reused.

Application areas

Mold manufacturing: injection mold inserts, hot runner nozzles, which can simplify cooling design and shorten production cycles.

Electronic and electrical appliances: resistance welding electrodes, connectors, spring switches, which are both conductive and wear-resistant.

Aerospace: high-temperature structural parts and non-magnetic components to meet the needs of harsh environments.