Solder bar: Characteristics, composition, and application 


In the process of soldering metals, the solder bar is a commonly used material besides solder paste and solder wire. Let’s learn more about the composition and identification characteristics of this material in the article below!

Learn about solder bar 

Identifying characteristics 

Solder bars have some identifying characteristics as follows:

Solid-body, hard

Long cylindrical bar shape

Silver gray

There is a percentage of the product’s composition on the surface


The main ingredient to make soldering iron is Tin (Sn). Besides, the product is also mixed with some other metals such as Lead (Pb), Silver (Ag), Copper (Cu), Nickel (Ni), Germanium (Ge), and Bismuth (Bi),… Which, the Tin content will account for 80-90% of the product volume.

solder bar


Tin solder bars on the market today are classified into two main types: Lead-free solder bars and lead-containing solder bars.

Solder bar contains lead: In the composition is mainly composed of 2 metals, Tin (Sn) and Lead (Pb) with different ratios such as 63/37, 60/40,…

Lead-free solder bar: Still has the main ingredient is Tin, but the lead element has been replaced by other metals such as Silver (Ag), Copper (Cu), Germanium (Ge), Nickel (Ni), Bismuth ( Bi),…with many different ratios.


Solder bar has very high applicability. It is used to manufacture PCBA electronic board assembly by wave soldering and dip soldering.

Besides, solder bar is also used for the production of electrical equipment used to solder the ends of wires and cables connected to the equipment.

In addition, tin bars are also used in the jewelry industry, copper plating, copper casting, …

solder bar

Prestigious, quality brands of solder bar 

There are many different brands of solder bar on the market today. But the most prestigious and quality are the following brands:

Electroloy solder bar 

Electroloy is a brand of soldering iron from Malaysia, headquartered in Singapore. The solder bar products from this brand have a variety of types, meeting ISO standards to provide a full composition analysis table.

Besides, it also meets safety standards such as halogen-free (there is no halogen in the components of solder and flux core), and European RoHS standard (product does not contain harmful substances) for lead-free solder.

Solderindo solder bar 

Solderindo is a solder bar brand from Indonesia. This is a company specializing in the production of high-quality, green technology welding consumables. All solder products from this brand are manufactured according to IPC standards, complying with European safety standards such as halogen-free, halide-free, and RoHS,…

solder bar

TH solder bar

TH soldering iron is produced by TH Electronic Technology Co., Ltd (abbreviated Thetech Co., LTD). This is a product line made from high-tech refined materials, manufactured according to IPC J-STD-006 process and compliant with RoHS – European safety standards.

Because it is produced in Vietnam, the TH solder tin bar is the cheapest on the market today. Because it does not cost import and customs. But the quality is still guaranteed like solder tins imported from abroad.

Address to buy in bulk genuine solder bars with good price 

If customers need to buy solder bars in bulk but don’t know where to buy them, they can come to Thetech! We are a company specializing in providing solder bars from many different brands, with full papers of origin and quality control, helping customers feel secure when buying products.

solder bar

When contacting to order, Thetech will assist you with packaging and shipping. Commitment to home delivery, on time as agreed.

Above are the identification characteristics, composition, and application of solder bar. Hopefully, through this article, you have learned more about this material. If you have any questions, do not hesitate to contact Thetech for answers!

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