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Chemical Composition & Physical Properties
Grade
|
Chemical Composition (mass fraction) %
|
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Cu+Ag
|
P
|
Ag
|
Bi2)
|
Sb2)
|
As2)
|
Fe
|
Ni
|
Pb
|
Sn
|
S
|
Zn
|
O
|
|
TU2
|
99.95
|
0.002
|
- |
0.001
|
0.002
|
0.002
|
0.004
|
0.002
|
0.004
|
0.002
|
0.004
|
0.003
|
0.003
|
Grade
|
Condition
|
Tensile Test
|
Hardness Test
|
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Thickness/mm
|
Tensile Rm/
(N/mm2) |
Elongation after fracture %
|
HV
|
HRB
|
||
TU2 | M | ≥ 0.2 | ≥195 | ≥30 | ≤70 | - |
Y4
|
215~275
|
≥25
|
60~90
|
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Y2
|
245~345
|
≥8
|
80~110
|
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Y
|
295~380
|
≥30
|
90~120
|
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T
|
≥350
|
- |
≥110
|