---- Sn-Bi58焊锡丝产品规格：
|
Product Grade No.
|
Diameter (mm)
|
Packing specification ( g/Roll)
|
|
YTW502-1.2
|
1.2
|
500
|
|
YTW502-1.0
|
1.0
|
500
|
|
YTW502-0.8
|
0.8
|
500
|
|
YTW502-0.6
|
0.6
|
200 or 500
|
|
YTW502-0.5
|
0.5
|
50 or 100 or 200
|
|
YTW502-0.4
|
0.4
|
50 or 100
|
|
YTW502-0.3
|
0.3
|
50 or 100
|
---- Sn-Bi58焊锡丝的成分：
|
Element
|
Sn
|
Pb
|
Cd
|
Cr6+
|
Bi
|
|
Content（wt%）
|
42.0±0.5
|
﹤0.1
|
﹤0.01
|
﹤0.01
|
Bal
|
---- Sn-Bi58焊锡丝的性能：
|
Diameter (mm)
|
Expansion rate (%)
|
Tensile strength (MPa)
|
Fracture elongation (%)
|
|
1.2
|
70～80
|
50～70
|
≥60
|
|
1.0
|
70～80
|
50～70
|
≥60
|
|
0.8
|
70～80
|
50～70
|
≥60
|
|
0.6
|
70～80
|
50～70
|
≥40
|
|
0.5
|
70～80
|
50～70
|
≥40
|
|
0.4
|
70～80
|
50～70
|
≥30
|
|
0.3
|
70～80
|
50～70
|
≥30
|