Sep 21 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Introduction
Architectural bronze develops a golden luster when used in leaded brass CuZn41Pb1Al. Architectural bronze alloys enhance the inside and outside appearances of buildings and last for a long time. They are available in many forms and are generally completed by waxing.
UNS C38000 alloys are a type of architectural bronze alloys that are low leaded. The following datasheet provides an overview of UNS C38000 alloys .
Chemical Composition
The chemical composition of UNS C38000 alloys is outlined in the following table.
|
Element |
Content (%) |
|
Al |
0.50 |
|
Cu |
55.0-60.0 |
|
Fe |
0.35 |
|
Pb |
1.5-2.50 |
|
Sn |
0.30 |
|
Zn |
36.35-43.5 |
Physical Properties
The following table shows the physical properties of UNS C38000 alloys.
|
Properties |
Metric |
Imperial |
|
Density |
8.40 g/cm3 |
0.303 lb/in³ |
Mechanical Properties
The mechanical properties of UNS C38000 alloys are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Hardness, Rockwell B |
130 |
130 |
|
Tensile strength |
420-460 MPa |
60900-66700 psi |
|
Yield strength (@strain 0.200%) |
228 MPa |
33100 psi |
|
Elongation at break (in 50 mm) |
20-25% |
20-25% |
|
Shear modulus (UNS C38500) |
37.0 GPa |
5370 ksi |
|
Impact test |
16.3 J |
12.0 ft-lb |
Thermal Properties
The thermal properties of UNS C38000 alloys are given in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient |
26.0 µm/m°C |
14.4 µin/in°F |
|
Thermal conductivity |
113 W/mK |
784 BTUin/hr.ft².°F |
Other Designations
Equivalent materials to UNS C38000 architectural bronze alloys are ASTM B455 alloys.