Lead-free solder wire( SnCu3.0 0.3mm )

Solder wire are characterized by
1quick fusion, good wettability
2.excellent expansibility
3.Cores full bright firm welding






Shape & tolerance:lead-free solder wire(welding wire)
Appearance: lucent, no dirt on surface
Weight: 15KG/box or so
Features: made of pure tin and pure copper from Yunnan Tin Industry Co., Ltd., advanced processing with high purity .
Purpose: leadless soldering in high temperature for electronics industry
Physical properties:
(1) Liquid temperature: about 227
(2) Specific gravity: about 7.4
Alloy composition:(wave soldering alloy)
Tin (Sn)
Cuprum (Cu)
Plumbum (Pb)
Stibium (Sb)
Bismuth (Bi)
Zincum (Zn)
Ferrum (Fe)
Aluminum (Al)
Arsenic (As)
Cadmium (Cd)
97
3.0±0.2
<0.1
<0.02
<0.01
<0.02
<0.02
<0.02
<0.03
<0.02
Physical properties
Spec.(colophony content) Melting point Specific gravity (g/cm2)
1.1% 227 7.38
2.2% 227 7.34
3.3% 227 7.40


Lead-free solder wire is suitable for the static dip soldering and welding wire soldering and hand-holding dip slodering.Solder wire is widely used on electronic industry.