CUBE2-UNS.C17200 BERYLLIUM COPPER RODS DIA.12MM 15MM 20MM 25MM 30MM
Introduction of CuBe2-UNS.C17200 Grade Mateial:
- Chemical Coposition of CuBe2:
Be: 1.80-2.00; Ni + Co: 0.20 Min; Ni +Co +Fe: 0.60 Max; Al: 0.20
Max; Si: 0.20 Max; Cu: Balance
- Other properties of CuBe2:
High hardness |
| High explosion resistance |
| Good corrosion resistance |
| High electrical conductivity |
| Excellent heat dissipation performance |
| High yield limit and fatigue limit |
- Corrosion Resistance of CuBe2:
The alloy has high chemical stability in the atmosphere, fresh
water and sea water, has a small intergranular corrosion tendency
and is resistant to impact corrosion. It also has good corrosion
resistance in media such as dilute hydrochloric acid, acetic acid
and phosphoric acid, but the corrosion speed is faster in wet
ammonia, nitric acid and chromate solutions.
- Common application of CuBe2:
As Cube2 beryllium copper is easy to process and with its cooling
effect, it is used in various fields:
| Electromic and electrical equipment |
| Aerospace |
| Automobile manufacturing |
| Hot runner cooling systems |
| Communication preparation equipment |
| Instrumentation |
| High electronics |
| Plastic and optical molds |
| Mold cores |
| Punches |
Material Standard of CuBe2:
| DIN | ASTM | RWMA |
| w.nr.2.1247 | C17200 | Class IV |
Technical parameters of CuBe2:
| Density | 8.36g/cm³ |
| Hardness | 36-46HRC |
| Tempere | TB00, TF00, TH04, TD04 |
| Thermal Expansion Coefficient | 17.5×10-6m/m℃ |
| Thermal Conductivity | 105W/m℃ |
| Melting Point(solidus) | 870℃ |
Product Photos:
CuBe2-UNS.C17200 Grade Mateial Aging
The aging of the parts should be carried out in a special fixture
to prevent warping, deformation and ensure the dimensional accuracy
of the parts. When bright treatment is required, a controlled
atmosphere or vacuum furnace should be used. When the surface
quality is not high or surface oxides are to be removed in
subsequent processes, neutral salt furnaces or air circulation
furnaces are allowed.
Surface treatment process
Soak in aqueous sodium hydroxide solution
Surface finish
To loosen the oxide film, then pre-corrode in aqueous hydrochloric
acid solution, and finally perform bright treatment in a mixture of
sulfuric acid and nitric acid.
Passivation treatment
Weakly corrode in dilute sulfuric acid solution first, then
impregnate in a mixture of tyrosine (90g/L) and sulfuric acid
(30g/L) at room temperature.
Machining and Grinding Performance The machinability of the alloy
is 20% of that of the free-cutting brass HPb63-3.
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