Used in electronic, PCB board Lead-free soldering wire Sn99.3Cu0.7

Lead-free soldering wire
1. made of pure tin and copper from Yunnan Tin
2. advanced processing with high purity,little dross

Purpose: lead-free soldering wire(welding wire)

in high temperature for electronics industry
Physical properties:(wire solder )
(1) Liquid temperature: about 227
(2) Specific gravity: about 7.4
Alloy composition:
Tin (Sn)
Cuprum (Cu)
Plumbum (Pb)
Stibium (Sb)
Bismuth (Bi)
Zincum (Zn)
Ferrum (Fe)
Aluminum (Al)
Arsenic (As)
Cadmium (Cd)
99.3
0.7±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

Resin-cored welding wires of this series are made of the latest compound formula scaling powder with high technical content and manufactured with the most advanced automatic equipment. To cater to requirements of greater precision and more sophistication in recent years in the electronics industry, our company has developed several new high quality products.