UNS C46400

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Chemical Composition

The following table shows the chemical composition of UNS C46400 brass-copper alloys.

Element	Content (%)
Cu	60
Sn	0.75
Zn	39.25

Physical Properties

The physical properties of UNS C46400 brass-copper alloys are outlined in the following table.

Properties	Metric	Imperial
Density	8.41 g/cc	0.304 lb/in³
Melting point	888°C	1630°F

Mechanical Properties

The mechanical properties UNS C46400 brass-copper alloys are tabulated below.

Properties	Metric	Imperial
Tensile strength	379-607 MPa	55000-88000 psi
Yield strength (depending on temper)	172-455 MPa	24900-66000 psi
Elongation at break (in 431.8 mm)	50%	50%
Elastic modulus	117 GPa	17000 ksi
Poisson’s ratio	0.34	0.34
Machinability (UNS C36000 (free-cutting brass) = 100)	30	30
Shear modulus	39.0 GPa	5660 ksi

Thermal Properties

The thermal properties UNS C46400 brass-copper alloys are tabulated below.

Properties	Metric	Imperial
Thermal expansion co-efficient (@ 20-300°C/68-572°F)	21.2 µm/m°C	11.8 µin/in°F
Thermal conductivity (@20°C/68°F)	116 W/mK	805 BTU in/hr.ft².°F