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Chemical Composition & Physical Properties
Grade
Chemical Composition (mass fraction) %
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
Thickness/mm
Tensile Rm/

(N/mm2)
Elongation after fracture %
HV
HRB
TU2 M ≥ 0.2 ≥195 ≥30 ≤70 -
Y4
215~275
≥25
60~90
Y2
245~345
≥8
80~110
Y
295~380
≥30
90~120
T
≥350
- ≥110