 |
The Leading Supplier of |
| PRECISION SEMI-FINISHED METALS | |
|
The Leading Supplier of |
| PRECISION SEMI-FINISHED METALS | |
CuCoNiBe AVINS |
Designation |
CuCoNiBe Ident. symbol: CuCo2Be RWMA (USA): class 3 |
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| Standards |
EN: 1652, 12163, 12166, 12167 |
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| Guaranteed
Composition |
Co 0.8 - 1.3 Be 0.4 - 0.7 Ni 0.8 - 1.3 Fe max. 0.1 Al max. 0.1 Si max. 0.2 Cu remainder | |
| Main
technology characteristics |
CuCoNiBe is a precipitation hardening Cu-alloy. In comparison with CuCoBe, Nickel replaces part of the Cobalt which improves the technological properties. In the heat treated normal condition, the material possesses considerable hardness and thermal stability. In addition, CuCoNiBe has good electrical and thermal conductivity. Special production processes allow special hardness and conductivity values to be achieved. | |
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Physical Properties |
Specific weight | 8.8 g/cm³ |
| Specific heat | 0.4 J/g K | |
| Thermal conductivity (heat treated) | 220 - 250 W/mK | |
| Thermal expansion coefficient (68-572 °F) | 17.2 x 10-6 / K | |
| Electrical conductivity (solution heat treated, quenched) | 22 % IACS, 12 m/Ωmm² | |
| Electrical conductivity (heat treated) | 43 % IACS, > 25 m/Ωmm² | |
| Melting interval | 1832 - 1886 °F | |
| Mechanical Properties | Condition | Solution heat treated quenched TB 00 / H 065 | Hot formed heat-treated TF 00 / H220 | Hot formed special heat-treated H260 | Cold formed heat-treated TH 02 / H 270 |
| Hardness HB | 65 - 95 | > 220 | > 260 | > 270 | |
| Tensile strength [KSI] | > 36 | > 94 | > 109 | > 116 | |
| Yield strength Rp0.2 [KSI] | > 20 | > 73 | > 87 | > 102 | |
| Elongation A5 [%] | > 25 | > 8 | > 8 | > 5 | |
| Modulus of Elasticity [KSI] | ≈ 20000 | ≈ 20000 | ≈ 20000 | ||
| Softening temperature °F | 896 | 896 | 896 |
| Processing instruction |
Hot forming: |
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CuCoNiBe is suitable
for hot forming at about 1650 - 1300 °F. A highly oxidizing furnace
atmosphere is to be avoided. After hot forming, rapid cooling is recommended.
Cold forming: |
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CuCoNiBe is suitable
for cold forming. Intermediate annealing for softening can be carried
out at approx. 1470 °F with subsequent rapid cooling.
Heat treatment: |
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To achieve optimum properties, CuCoNiBe should be solution heat-treated and fast quenched in water.
This is followed by age hardening.
Solution heat treatment: |
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| 1650 - 1760 °F. 15 - 60 minutes. Quenching in water. | |
| Hardness measurement control: max. 100 HB | |
| Conductivity control: approx.
12 m/Ωmm²
Age hardening: |
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| 860 - 930 °F 1 - 5 hours. Air
cooling. NOT IN WATER.
Machining and processing |
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| It is recommended that this type
of machining (e.g. turning, milling, drilling) be carried out in the age
hardened condition. If drilling, using a larger angle or
twist is recommended. Allow for sufficient cooling time. Solder Capability: |
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CuCoBe can be soft soldered in the age hardened condition. However, the
maximum temperature during soldering cannot exceed 750°F. Hard
soldering with a silver solder with a low melting point is also
possible. Nevertheless, a loss of hardness is to be expected even with
limited soldering. Gas-shielded and resistance welding are also
possible, though preferably in a solution heat-treated condition. Allow
for good aeration and ventilation as well as welding smoke
extraction. Clean metallic surfaces are required for all soldering.
> Material Safety Data Sheet, Issue 01.05.97 (acc. to EC-Directive 93/112/EC)
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| Application |
CuCoNiBe is used for electrodes, brackets, and shafts for spot, seam,
butt and projection welding for materials with high strength and greater
electrical resistance as well as cast steel. It can also be
used as cooling inserts in molds, molds for non-ferrous metals,
inserts in steel tools requiring a fast cooling speed, and molds
for plastics, leather and wood imitations as well as for nozzles and
needles for hot channel systems, sealing heads, and die-casting
pistons.
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| Details of the properties or application of materials are for descriptive purposes only. Confirmation of suitability with regard to specific properties or application require written agreement. | |
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