EU environmental standards RoHS 2.0 request that the lead(Pb) content is less than 1000ppm.Based on this requirment, KINKOU has developed a low-lead C17300 and its cutting performance is as same as C17300.Kinkou also provide lead-free copper alloy C17200. The cutting performance of this C17200 is also good.
1. Chemical Composition of low lead C17300
|
Model |
Be |
Ni+Co |
Ni+Co+Fe |
Pb |
Cu |
|
C17300 |
1.8-2.0 |
≥0.20 |
≤0.6 |
＜0.1 |
Remnant |
2. Physical And Mechanical Properties of low lead 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 |
|||
Post time: Jan-12-2021