C51100 copper plate is a phosphor bronze alloy. Its production process and product advantages are as follows:

1. Production process

Alloy composition and smelting

C51100 is based on copper (remainder) and adds tin (3.5-4.5%), phosphorus (0.03-0.35%) and other elements. The atmosphere must be strictly controlled during smelting to avoid oxidation and ensure uniform composition.

Pressure processing

Cold processing: C51100 exhibits excellent plasticity in the cold state and can withstand high-precision cold rolling, drawing and other processes. It is suitable for the production of plates or wires as thin as 0.05mm.

Hot processing: Although it can be processed in the hot state (such as hot rolling at 750-780℃), due to its high phosphorus content, it is easy to become hot brittle during hot processing, and the temperature must be carefully controlled to avoid cracking.

Heat treatment

The annealing temperature range is 500-650℃, which is used to eliminate stress after cold processing or adjust the hardness of the material. Normalizing (N) and annealing (A) are common delivery states.

Surface treatment and customization

It can provide different appearance states such as pickling and polishing, and support non-standard customization (such as zero cutting, special size), with a width of up to 3000mm and a length of up to 6000mm.

2. Product advantages

Excellent mechanical properties

High strength and elasticity: tensile strength ≥410MPa, yield strength ≥350MPa, hardness up to HRC30-45, suitable for high-load scenarios such as springs and precision instruments.

Wear resistance: Due to the presence of tin and phosphorus, the wear resistance is better than that of ordinary copper alloys, suitable for friction parts such as bearings and gears.

Processing adaptability

Cold processing advantages: elongation δ10≥8%, suitable for stamping and bending of complex shapes.

Welding performance: easy to solder, braze and arc welding, but submerged arc welding and electroslag welding should be cautious.

Corrosion resistance and stability

Good corrosion resistance in the atmosphere and fresh water, a stable oxide layer can be formed on the surface, and long-term use does not require frequent maintenance.

Special functionality

Antimagnetic: Suitable for electromagnetic sensitive environments, such as detector rods and electronic components.

High temperature stability: Thermal conductivity 40-55W/m·K, high temperature resistance meets aerospace requirements.

Wide application areas

Including semiconductor lead frames, connectors, springs, bearings, chemical machinery parts, etc., covering high-tech industries such as electronics, machinery, and aviation.