Sep 18 2012
Topics Covered
IntroductionPhysical PropertiesMechanical PropertiesThermal PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working Annealing
Introduction
Copper can be formed into alloys more freely than most metals. It can also be combined with a broad range of alloying elements. There are 400 types of copper alloys with different properties that are suitable for various applications, manufacturing processes, and environments.
UNS C46500 alloys are a type of brass-copper alloys. It is also known as naval brass and arsenical brass. These alloys have good corrosion resistance, hot workability, and hot forgeability. The following datasheet will provide details about UNS C46500 brass-copper alloys.
Physical Properties
The physical properties of UNS C46500 brass-copper alloys are outlined in the following table.
| Properties |
Metric |
Imperial |
| Density |
8.41 g/cm3 |
0.304 lb/in³ |
Mechanical Properties
The mechanical properties UNS C46500 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% |
| Machinability (UNS C36000 (free-cutting brass) = 100) |
30 |
30 |
| Shear modulus |
39.0 GPa |
5660 ksi |
Thermal Properties
The thermal properties UNS C46500 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 |
Other Designations
Equivalent materials to UNS C46500 brass-copper alloys are:
- ASME SB171
- ASTM B171
- ASTM B432
- SAE J461
- SAE J463
Fabrication and Heat Treatment
Machinability
The machinability rate of UNS C46500 brass-copper alloys are 30.
Welding
Soldering, brazing, oxyacetylene welding, gas shielded arc welding, spot welding, seam welding and butt welding are considered as suitable welding processes, whereas coated metal arc welding is not recommended for UNS C46500 alloys.
Forging
The hot forgeability rating of UNS C46500 is 90 with the preferred hot working temperature being between 649 and 816°C (1200 and 1500°F).
Hot Working
The hot working capacity of UNS C46500 alloys is excellent.
Cold Working
The cold working capacity of UNS C46500 alloys is fair.
Annealing
The annealing temperature of UNS C46500 alloys is between and 427 and 593°C (800 and 1100°F).