Production process and product advantages of C24000 copper plate:

1. Production process

Smelting and casting

C24000 brass is smelted in an industrial frequency cored induction furnace lined with silica sand. The volatilization of zinc at high temperature helps the melt to degas and deoxidize naturally. A small amount of phosphor copper is added before casting to improve fluidity. The casting temperature is 1100-1160℃.

Rolling and processing

Hot rolling: The ingot after melting and casting is milled and hot rolled after heating to ensure the uniformity and initial shaping of the material.

Cold rolling and annealing: The plate after hot rolling enters the cold rolling stage, and then annealing (450-680℃) is used to eliminate internal stress, restore plasticity, and remove the surface oxide layer with pickling.

Finishing rolling and finishing: After multiple cold rolling and annealing, the plate enters the finishing rolling stage (intermediate rolling and fine rolling), and finally forms a finished product through leveling, shearing and other processes.

Surface treatment (optional)

Some products may be post-treated by washing, degreasing, painting (primer and topcoat) and drying to enhance corrosion resistance or aesthetics.

2. Product advantages

Excellent corrosion resistance

Performs well in the atmosphere, fresh water and seawater, with corrosion rates of 0.0001-0.00075 mm/a, 0.0025-0.025 mm/a and 0.0075-0.1 mm/a respectively.

However, it is sensitive to oxidizing acids, hydrated sulfides and stress corrosion, and needs to be annealed (200-300℃) to eliminate the stress after cold work hardening.

Excellent mechanical properties

Tensile strength covers 270-480 MPa (different heat treatment states), elongation can reach 38% (R270 state), hardness ranges from 55-155 HV, suitable for scenes with high strength and ductility requirements.

Carrying large current and high voltage, high temperature resistance (above 90℃) and pressure resistance (4000V without breakdown), it is suitable for industrial control, military industry and other fields.

Good processing performance

Excellent cold forming performance (the deformation between two annealings can reach 90%), and good hot forming performance (750-870℃).

It can be welded (excellent brazing and soldering performance), stamped, engraved and other processing, with high surface finish.

Wide range of application fields

Mainly used for instrument housing, waveguide, corrosion-resistant conduit, metal filter, as well as papermaking net, thin-walled tube, and building supplies.

It also has important applications in decoration (such as coinage, jewelry), electronic components, and musical instrument manufacturing.