Brass is an alloy composed of copper and zinc, possessing the following characteristics:

It is typically golden yellow in color, with a bright luster similar to gold. Some high-copper-content brasses (such as H96) are even closer in color to 

low-purity gold.

Density: Approximately 8.4-8.9 g/cm³, slightly lower than pure copper but higher than most common metals.

Hardness and Strength: Higher than pure copper in both hardness and strength.

Electrical and Thermal Conductivity: Good electrical and thermal conductivity, but lower than pure copper, suitable for general electrical and heat 

exchange applications.

Corrosion Resistance: Good corrosion resistance in air, fresh water, and seawater.

Surface Treatment: Surface gloss and corrosion resistance can be improved through processes such as polishing and electroplating.