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    Best Lead Solder Wire Suppliers China 2022


    Generally speaking in this article you learn about a lead solder wire suppliers. Solder is a metal alloy that fills the space between the soldering partners during soldering, creating both an electrical and mechanical connection. Since the largest proportion of the metal alloy is tin, this metal calls solder or solder.

    Lead Solder Wire Suppliers

    Leaded solder using in industry for many years

    The leaded solder is the classic solder. However, it has one major disadvantage, because leads are a toxics heavy metal. That is why it has hardly been uses in industry for years. In the hobby electronics and the rework / repair area it still uses today. This because leads solder has a low melting point and flows better.

    Today lead solder wire supplier’s divides solder into two important groups. Once, the leaded solder are the lead in free. Under these two categories there are various other alloys with different proportions and also the addition of other metals.

    QT-6337T – The classic among the soldering tins in the hobby sector

    Lead solder wire suppliers has classic soldering tin in the hobby sector. Below 183 °C this solder is solid and above 191 °C it is liquid. In the area in between it is more or less a "mash". A disadvantage of this solder is that cold solder joints are possible here if the solder joint is shaken during the transition from the liquid to the solid state or if a soldering partner moves.

    Nevertheless, this solder is our recommendation for anyone who wants to (learn to) solder as a hobby.

    Unfortunately, the lead solder wire suppliers are best to buy solder bar. That's why it's hard to get today and if it is, then at high prices compared to the solder. We would advise beginners not to use this solder.

     Solder consists of 63% tin and 37% lead

    This is small difference to the QT-6337T solder ensures that the solder is eutectic. Eutectic means that there is no transition between solid and liquid states. The solder suddenly becomes liquid when it reaches a temperature of 183 °C. Likewise, it immediately solidifies again when it falls below 350°F (183°C).

    It is precisely this property that makes this solder so popular in SMD rework or when repairing circuit boards with SMD components. A disadvantage compares to the lead solder wire suppliers Sn60Pb40 solder is, however, that it does not flow as well. Therefore, when working with the solder, it is also necessary to add more flux.

    There are also various other metals that can add to solder to achieve special properties. Let's take a look at the effect of these metals.

    Cu-Copper increase the service life of soldering

    Copper itself has a melting point of 1084.4 °C. Since many components in electronics base on copper, soldering tin with copper prevents the components and circuit boards from being alloyed into the solder. In addition, you can get soldering tips from lead solder wire suppliers.

    Unfortunately, we could not make this experience in practice, the copper soldering tips were more attacked and the service life reduces.

    The copper in the solder also increases the thermal conductivity of the solder, which can be an advantage, for example, when using components and the circuit board as a cooler. However, we believe that this small advantage is rather irrelevant in practice.

    Melting point of Lead Solder

    As well as, you can get any information about bismuth from lead solder wire suppliers. Lead Solder has a melting point of 271.3 °C. In the solder or together with tin, it significantly lowers the melting temperature of the solder. One possible application the so-calls rose’s metal, which is already liquid at 94 °C, More on that later in this article.

    Unfortunately, Rose's metal should only use to solder components in exceptional cases, since the connection is very unstable and breaks easily.

    Where Ag – Silver can we use?

    Silver lead solder wire suppliers can also mix into the solder as an additive of up to 0.5-5%. Essentially, the addition of silver prevents the silver from being alloyed with components. Silver uses especially in the SMD area to prevent oxidation of the contact surfaces.

    Lead Solder Wire Suppliers 2022

     In addition, silver slightly increases conductivity; it dampens signals a little less. In practice, however, the effect should be irrelevant.

    Gold soldering is very popular

    As with silver, the addition of gold prevents gold surfaces from being alloyed into the solder. Like silver, it also increases the conductivity of the solder joint. Soldering tin with gold is particularly popular in the audio sector and among audiophiles. In addition, we can buy soldering tin with gold from trusted lead solder wire suppliers.

    In the laboratory we could hardly measure any differences compared to other solders. But audiophiles still value it and think they hear a difference.

    Lead-free solder wire

    The main disadvantage of lead-free solder the increases melting temperature, and the flow properties of lead-free solder are not nearly as good as those containing lead. A big advantage is that the toxic lead is no longer contained in the solder. Depending on the alloy, the typical melting point is between 218 and 230 °C. According to the lead solder wire suppliers regulations, lead-containing solder may no longer be used in the industrial electronics sector since 2006/2007.

    The main component of lead-free solder is tin (Sn) with 90-100%. In addition, other metals are often added, such as silver (Ag), copper (Cu) or gold (Au).

    Our tip: If you want to solder lead-free, then you should not buy standard lead-free solder from the range of electronic mail-order companies, but fall back on reliable lead solder wire suppliers products.

    And I'm speaking from experience - we try many solders from many manufacturers before we found the right one for us.

    What thickness should my solder wire be?

    There are numerous coils with soldering wire of various strengths available on the market. Unfortunately, beginners tend to choose the happy medium when buying solder wire from lead solder wire suppliers.

    Thicknesses of 1mm are then often bought - because it is a "round number". Thicknesses of 0.25mm are then stamp out of ignorance as soldering wire for extremely fine work.

    If you have a thick solder wire, you often put too much solder on the soldering point and then often have to remove it again. So the dosage is much easier.

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