Sep 26 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesThermal Properties Other DesignationsFabrication and Heat treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Introduction
UNS C62300 aluminium nickel bronze has high corrosion and acid resistance. It is available in the form of rod and flat products.
Chemical Composition
The chemical composition of UNS C62300 copper alloy is outlined in the following table.
| Element |
Content (%) |
| Cu |
87 |
| Fe |
3 |
| Al |
10 |
Physical Properties
The physical properties of UNS C62300 copper alloy are tabulated below.
| Properties |
Metric |
Imperial |
| Density |
7.65 g/cm3 |
0.276 lb/in3 |
| Melting point |
1040 - 1045°C |
1900 - 1913°F |
Mechanical Properties
The following table shows mechanical properties of UNS C62300 copper alloy.
| Properties |
Metric |
Imperial |
| Hardness, Rockwell B |
89 |
89 |
| Tensile strength, ultimate |
605 MPa |
87700 psi |
| Tensile strength, yield (depending on temper) |
305 MPa |
44200 psi |
| Elongation at break (in 50 mm, 15% reduction in area) |
15% |
15% |
| Modulus of elasticity |
115 GPa |
16700 ksi |
| Poisson’s ratio |
0.328 |
0.328 |
| Charpy impact (V-notch) |
25 - 40 J |
18.4 - 29.5 ft-lb |
| Charpy impact (@ 427 °C/ 801 °F, annealed) |
9 J |
6.64 ft-lb |
| Charpy impact (@ 538°C/ 1000°F, annealed) |
10 J |
7.38 ft-lb |
| Charpy impact (@ 20.0 °C/ 68.0 °F, cold finished) |
48 J |
35.4 ft-lb |
| Charpy impact (@ 204 °C/ 399 °F, cold finished) |
48 J |
35.4 ft-lb |
| Izod impact |
43 - 47 J |
31.7 - 34.7 ft-lb |
| Fatigue strength (@# of cycles 1.00e+8, reverse bending) |
200 MPa |
29000 psi |
| Machinability (based on 100% machinability for UNS C360000) |
50% |
50% |
| Shear modulus |
44 GPa |
6380 ksi |
Thermal Properties
The thermal properties of UNS C62300 copper alloy are outlined in the following table.
| Properties |
Metric |
Imperial |
| CTE, linear (@ 20.0 - 300°C/68.0 - 572°F) |
16.2 μm/m°C |
9.00 μin/in°F |
| Specific heat capacity |
0.375 J/g°C |
0.0896 BTU/lb°F |
| Thermal conductivity (@ 20.0°C/68.0°F) |
54.4 W/m-K |
378 BTU-in/hr-ft2°F |
| Solidus |
1040°C |
1900°F |
| Liquidus |
1045°C |
1913°F |
Other Designations
Other designations that are equivalent to UNS C62300 copper alloy include:
- ASME SB150
- ASTM B124
- ASTM B150
- ASTM B283
- MIL B-16166
- SAE J461
- SAE J463
Fabrication and Heat treatment
Machinability
The machinability of UNS C62300 copper alloy is about 50%.
Welding
UNS C62300 copper alloy can be welded by using various welding methods such as brazing, gas shielded arc welding, spot welding, coated metal arc welding, butt welding, and seam welding.
Forging
UNS C62300 copper alloy is forged at 705 to 871°C (1300 to 1600°F) The forgeability of UNS C62300 copper alloy is about 75%.
Hot Working
UNS C62300 copper alloy has good hot working capacity.
Cold Working
UNS C62300 copper alloy has good cold working capacity.
Annealing
UNS C62300 copper alloy is annealed at 594 to 649°C (1100 to 1200°F).
Applications
UNS C62300 copper alloy is mainly used in pump and valve components for industrial process streams, high strength fasteners, marine equipment, and pole line hardware.