BRASS

Synonym(s):Brass;Cu₃₄Zn₁₁

CAS NO.：63338-02-3
Empirical Formula: CuPbZn
Molecular Weight: 336.14
MDL number: MFCD00171255
EINECS: 215-270-7
Update Date: 2026-05-28 06:04:30

What is BRASS?

Definition

Any of a group of copper–zinc alloys containing up to 50% of zinc. The color of brass changes from red-gold to golden to silvery-white with increasing zinc content. Brasses are easy to work and resist corrosion well. Brasses with up to 35% zinc can be worked cold and are specially suited for rolling into sheets, drawing into wire, and making into tubes. Brasses with 35–46% zinc are harder and stronger but less ductile; they require hot working (e.g. forging). The properties of brass can be improved by the addition of other elements; lead improves its ability to be machined, while aluminum and tin increase its corrosion resistance.

Definition

A group of alloys consistingof copper and zinc. A typical yellowbrass might contain about 67% copperand 33% zinc.

Properties of BRASS

Melting point:	~870 °C(lit.)
Density	1.17 g/mL at 25 °C(lit.)
form	powder
color	Yellow
Merck	13,2694

Safety information for BRASS

Signal word	Warning
Pictogram(s)	Environment GHS09
GHS Hazard Statements	H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P273:Avoid release to the environment. P391:Collect spillage. Hazardous to the aquatic environment P501:Dispose of contents/container to..…