Sep 13 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal properties
Other Designations
Introduction
Copper casting alloy UNS C87300 is a cast alloy of copper and silicon. Brasses have attractive color and can be shaped according to the architects’ need.
The following datasheet provides chemical composition and properties of UNS C87300 alloy.
Chemical Composition
The chemical composition of UNS C87300 alloy is given in the following table.
|
Element |
Content (%) |
|
Cu |
94.0 |
|
Zn |
0.25 |
|
Pb |
0.20 |
|
Fe |
0.20 |
|
Mn |
0.80 - 1.50 |
|
Si |
3.50 - 4.50 |
Physical Properties
The following table details the physical properties of UNS C87300 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
8.36 g/cm3 |
0.302 lb/in³ |
Mechanical Properties
The mechanical properties of UNS C87300 alloy are shown in the following table.
|
Properties |
Metric |
Imperial |
|
Compressive strength |
125 MPa |
18100 psi |
|
Izod impact |
45.0 J |
33.2 ft.lb |
|
Hardness, Brinell |
85 |
85 |
|
Tensile strength |
380 MPa |
55100 psi |
|
Yield strength |
170 MPa |
24700 psi |
|
Elongation at break |
30.00% |
30.00% |
|
Machinability |
50 |
50 |
Thermal properties
The following table discusses the thermal properties of UNS C87300 alloy.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-260°C/68-500°F) |
19.6 µm/m°C |
10.9 µin/in°F |
|
Thermal conductivity( @20°C/68°F) |
28.0 W/mK |
194 BTUin/hr.ft².°F |
Other Designations
Equivalent designations to UNS C87300 alloy include:
-
ASTM B271
-
ASTM B30
-
ASTM B584
-
ASTM B763
-
MIL C-11866
-
QQ C390
-
SAE J461
-
SAE J462