Free Cutting Beryllium Copper Rod
Free Cutting Beryllium Copper Rod,
Copper C17300,
The product has been classified as the high-tech products (new material category) in Jiangsu Province since 2013. It adopts the short process technology (6 patents) with independent intellectual property rights, which initially developed the high-intensity high-conductivity free-cutting high precision beryllium copper rod and closured domestic dependence status quo of importing the superior high-intensity high-conductivity free-cutting high precision beryllium copper rod. Currently, there are six clients ranking in Top 10 Manufacturers of Global Radio-frequency Connector.
1. Chemical Composition of C17300
|
Model |
Be |
Ni+Co |
Ni+Co+Fe |
Pb |
Cu |
|
C17300 |
1.8-2.0 |
≥0.20 |
≤0.6 |
0.2-0.6 |
Remnant |
2. Physical And Mechanical Properties of C17300
|
State |
Heat Treatment |
Diameter (mm) |
Tensile Strength(MPa) |
Yield Strength(MPa） |
Elongation 4xD(%) |
Hardness |
Electrical Conductivity (IACS,%) |
|
|
HV0.5 |
HRB or HRC |
|||||||
|
TB00 |
775℃~800℃ |
All |
410-590 |
＞140 |
＞20 |
159-162 |
B45-B85 |
15-19 |
|
TD04 |
775℃~800℃ Solution+Cold Process Hardening |
8-20 |
620-860 |
＞520 |
＞8 |
175-257 |
B88-B102 |
15-19 |
|
0.6-8 |
620-900 |
＞520 |
＞8 |
175-260 |
B88-B103 |
|||
|
TH04 |
315℃x1~2hr |
8-20 |
1140-1380 |
＞930 |
＞20 |
345-406 |
C27-C44 |
23-28 |
|
0.6-8 |
1210-1450 |
＞1000 |
＞4 |
354-415 |
C38-C45 |
|||
3. Cutting Performance of C17300
Equivalent to 65% of the machinability of brass C3600
4. Application Fields of C17300
It’s mainly used in coaxial connector,probe,communication,military aerospaceCopper beryllium alloys feature high strength and good thermal and electrical properties. Two main types of copper beryllium alloys are high conductivity alloys and high strength alloys. The high conductivity alloys have 0.2-0.7% of beryllium and high cobalt and nickel contents. The wrought high strength alloys consist of 1.6 to 2.0% of beryllium and nearly 0.3% of cobalt. While, the cast high-strength alloys contain up to 2.7% of beryllium. The UNS designations of the cast alloys are C82000 to C82800 and that of wrought alloys are C17200 to C17400. The copper beryllium alloys can be precipitation hardened or age hardened to improve its strength. The tensile strength of C17300 alloys is over 1380 MPa (200 ksi).
