Cupro CNB CuCoNiBe is a versatile copper alloy suitable to be used as welding electrodes, permanent mould components etc.
Hard copper alloy with high thermal conductivity and high mechanical properties combined with good hardness and high temperature strength.
Cupro CNB CuCONiBe Cobalt Nickel Copper Beryllium Copper Alloys.
Electrical Industrial
Welding and Brazing Components Plunger tips, die casting
No fabrication process properties for this alloy.
| Elements | ||||||
|---|---|---|---|---|---|---|
| Cu(1,2) | Fe | Ni | Be | Co | Si | |
| (1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. |
||||||
| Min (%) | 0.8 | 0.4 | 0.8 | |||
| Max (%) | Rem | 0.2 | 1.3 | 0.7 | 1.3 | 0.2 |
| Form | Temper | Temper Code | Tensile Strength (ksi) |
Elongation (%) |
Rockwell B scale |
|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). | |||||
| Forgings | Hard and Precipitation Heat Treated | TH04 | 100 Min 120 Typ 140 Max |
10 Min 14 Max |
95 Min |
| Precipitation Hardened | TF00 | 100 Min 120 Typ 140 Max |
10 Min 14 Max |
95 Min | |
| Solution Heat Treated | TB00 | 100 Min 120 Typ 140 Max |
10 Min 14 Max |
95 Min | |
| Sheet, Strip, Roller Bar & Plate | Hard and Precipitation Heat Treated | TH04 | 100 Min 140 Max |
10 Min 14 Max |
95 Min |
| Precipitation Hardened | TF00 | 100 Min 120 Typ 140 Max |
10 Min 14 Max |
95 Min | |
| Solution Heat Treated | TB00 | 100 Min 120 Typ 140 Max |
10 Min 14 Max |
95 Min | |
| Melting Point – Liquidus°F | 1975 |
|---|---|
| Melting Point – Solidus°F | 1880 |
| Densitylb/cu in. at 68°F | 0.318 |
| Specific Gravity | 8.81 |
| Electrical Conductivity% IACS at 68°F | 45 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 135 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 9.8 |
| Modulus of Elasticity in Tensionksi | 19600 |
| Magnetic Permeability | 1 |
| Poisson’s Ratio | 0.3 |
| Soldering | Good |
|---|---|
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Fair |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Good |
No applicable specifications for this alloy.
