Braze Alloys
Nicuman® 23 Technical Information
High-purity copper, manganese and nickel alloy for vacuum brazing
Key Benefits
- Higher strength than Ag-based alloys
- Higher application temperature
- Good ductility
Typical Applications
- Vacuum tubes
- Aerospace engines
- Cutting tools
Nominal Composition by Weight
- Copper (Cu): 67.5%
- Manganese (Mn): 23.5%
- Nickel (Ni): 9%
Forms Available
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Nicuman® 23 Thermal Properties |
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|---|---|---|
|
°C |
°F |
|
|
Liquidus |
955 |
1751 |
|
Solidus |
925 |
1697 |
|
Nicuman® 23 Physical Properties* |
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|---|---|---|---|---|
|
Metric |
Imperial |
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|
Thermal Conductivity (Calculated) |
8.9 |
W/(m*K) |
5.1 |
BTU/ft h °F |
|
Density |
7.9 |
Mg/m3 |
0.285 |
lb/in3 |
|
Yield Strength (0.2% offset) |
322 |
MPa |
46.8 |
x103 lb/in2 |
|
Tensile Strength |
590 |
MPa |
85.6 |
x103 lb/in2 |
|
Elongation (2in/50mm gage section) |
34 |
% |
||
|
Electrical Resistivity |
845 |
x10-9(ohm*m) |
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|
Electrical Conductivity |
6.5 |
x106/(ohm*m) |
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|
Recommended Brazing Temperatures |
975 – 1000 |
°C |
1787 – 1832 |
°F |
|
Recommended Brazing Atmospheres |
10-5 mm Hg, H2, or inert gas |
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* Please note that all values quoted are based on test pieces and may vary according to component design. These values are not guaranteed in any way and should only be treated as indicative values. They should be used for guidance only and for no other purpose whatsoever.