Name:Solder Wire 55/45 (Sn55Pb45)
Name:Tin Lead Solder Wire 55/45
Alloy:Tin Lead
Core:Rosin Flux 2.2% or solid core without flux
Wire diameter:0.2mm to 3.2mm

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  • Solder Wire 55/45 (Sn55Pb45)

Product Description

Tin Lead Solder Wire 55/45 (Sn55Pb45)

Tin Lead Solder Wire 55/45 is made with a no clean rosin flux core at nominal 2.0%. The number 55/45 means that the tin content is 55% by weight and lead content is 45% by weight respectively, it's also written as Sn55Pb45. It's a handy solder wire for manual soldering either for electrical parts manufacturing or repairs. This solder wire 55/45 is available in diversified wire diameter, such as 0.6mm, 0.8mm, 1mm upto 3.2mm optional. It's important to choose the proper wire diameter, so that you don't need to solder one joint twice, nor soldering excessive amount of solder onto the joint. Also this solder wire 55/45 (Sn55Pb45) is available in solid core without rosin flux too. 

We accept both big orders and small orders. Big order will be delivered by sea, small order will be delivered by courier service.

Whatsapp / Wechat: 008613450770997 ; Email: or , or fill in the Contact Form in the bottom of this page.

Features of Tin Lead Solder Wire 55/45

1. The solder wire 55/45 (Sn55Pb45) has a melting point 183-203℃, it's a mid-range temperature solder wire . 

2. High tin content with good electrical conductivity.

3. Good wetting & liquidity properties.

4. Fast melting and easy soldering, the wire is already cored with rosin flux so no need to use external flux. The flux is evenly and well distributed inside the wire.

5. No splashing and very little smoke release during soldering.  

solder joint

Applications of Tin Lead Solder Wire 55/45

This tin-lead alloy 55/45 (Sn55Pb45) is with a wide melting range. It's suitable to be used for automotive, radiator, general purpose soldering, electrical applications. It's prohibited to use for portable water pipes due to it's lead containing. 

solder wire application

Packing of Tin Lead Solder Wire 55/45:

1. The solder wire 55/45 (Sn55/Pb45) comes in diversified wire diameter and generally weight of each spool is to be nominated by client, namely make to order. Standard options we have 100g/spool, 200g/spool, 500g/spool, 1000g/spool (max) at the moment.

2. Small size spool is generally packed at 20pcs/box (such as 100g/spool, 200g/spool). Big size spool is generally packed 10pcs/box (such as 500g/spool, 1000g/spool).

3. Boxes will eventually be put into cartons making it better protected from damage during transportation.

4. Seaworthy plastic pallet will be used to place the cartons and whole pallet fully wrapped with pvc film.

solder wire packing

Notices for using & storage of Tin Lead Solder Wire 55/45:

1. Heat up the area of the components that need to be soldered first and afterwards heat the solder wire and join them together, don't apply the solder wire directly onto the soldering iron tip.

2. Read and follow the TDS & MSDS before using.

3. Storage: 55/45 rosin cored solder wire (Sn55Pb45) must be stored in a dry, non-corrosive environment between 10°C-40°C. 

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