What are the differences between lead-free solder wire and conventional environmentally friendly solder wire?

Lead-free solder wireWhat are the differences between it and conventional environmentally friendly solder wire? Nowadays, the electronics industry is developing at an increasingly rapid pace, so the products of this industry are also indispensable. Tin wire is a kind of wire with conductive function, and it is used in many electrical appliances. So many people will ask, what are the differences and distinctions between lead-free and environmentally friendly products, and which one is better to choose? This situation still depends on your own products and needs. Below, the editor of JJY, a solder paste manufacturer, can explain it to you:

Leaded solder wire has a low melting point but is not environmentally friendly, while lead-free solder wire is the opposite. In terms of price, the lead-containing ones are cheaper while the lead-free ones are more expensive. this2The main difference lies in the lead content. On the market, the main types are tin-copper, tin-silver, tin-copper-nickel, tin-bismuth at low temperatures, and tin-antimony at high temperatures. Different alloys also have different content ratios.

The differences between leaded soldering and lead-free soldering are as follows:

1Judging from the luster and color of the tin's appearance:

The surface of leaded solder appears bright white.

Lead-free solder is light yellow.

2Classified by the composition of metal alloys:

Leaded solder contains two main metallic elements, tin and lead (such as:Sn63Pb37,Sn50Pb50Etc.

Lead-free solder is basically lead-free (EU.ROHSThe standard is that the lead content is less than1000PPMThe Japanese standard is less than500PPMLead-free solder usually contains metal elements such as tin, silver or copper.

3Classified by usage:

Leaded solder is used for soldering lead-containing products, and the tools and components it uses are all lead-containing.

Lead-free solder is used for soldering lead-free products exported to Europe, America and other countries. The tools and components it uses must be lead-free.

4If you distinguish them by rubbing with your hand: lead-containing ones will leave black marks on your hand, while lead-free ones will leave light yellow marks, because lead-free ones usually contain copper metal.

As mentioned above, the two differences mentioned above are what I have shared with you. You can take a look at them. They play a very important role in electronics and many other products. Therefore, when it comes to products, you should pay more attention. You can learn more about the functions and roles of the products. If you still have any questions, Welcome all partners to consult Shenzhen JJY Industrial Technology Co., LTD. Let's learn and grow together! Of the JJY brandSolder wireSolder paste and solder rods, always looking forward to our partners coming to take them away together.