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Tin Lead Solder Wire Sn25Pb75 25 75


Tin Lead Solder Wire Sn25Pb75 25 75

Solder Wire 25 75

Tin Lead Solder Wire 25 75, known as Solder Wire Sn25Pb75, is a soldering material crafted with 25% tin (Sn) and 75% lead (Pb). This solder wire finds its strength in its lead-rich composition, making it an ideal choice for applications where robust and durable solder joints are essential. The high lead content contributes to the alloy's durability and dependable adhesion.


Specifications of Tin Lead Solder Wire Sn25Pb75 25 75:

Alloy Composition

25% Tin (Sn), 75% Lead (Pb)

Melting Point


Flux Type

Rosin based

Flux Content

2.0% as standard, or customized flux percentage

Wire Diameter

0.5mm to 3.2mm


100g/roll, 200g/roll, 500g/roll to 1kg/roll or customized weight


XF Solder or OEM service

*We also produce solid wire without flux core

Different Diameters of Solder Wire

Wide Choice of Diameters

Rosin Flux Core Tin Lead Solder Wire

Flux Cored

Different Weights of Solder Wire

Wide Choice of Weight


Feature of Tin Lead Solder Wire Sn25Pb75 25 75:

Heat Resistant

The melting point of solder wire 25 75 is higher than most of other leaded solder. It's suitable for components that need to withstand of higher working temperature.

Stable Quality

It keeps reasonable fluidity and wetting similar to other leaded solder, the solder joints will firmly bind the components.

2 in 1 Solution

The solder wire Sn30Pb70 is produced with a rosin flux core. Users don't need to prepare extra flux and can use this solder for their soldering work.

Cheap Price

It's produced with higher percentage of lead, that cut down the material cost of the solder wire a lot. It's a very affordable material for users.


Applications of Tin Lead Solder Wire Sn25Pb75 25 75:

General electronics or electrical devices manufacturing and repairing. As the cost for solder wire Sn25Pb75 is low, it's suitable for projects that have tight budget.


For industrial purpose such as radiator assembly, copper pipe plumbing joinery, and jewelry-making and other metal sheet joinery.

jewelry making with solder wire

Artificial Jewelry Making

Radiator soldering with solder wire

Radiator Soldering

Manual Soldering with solder wire

PCB Assembly


How to use Tin Lead Solder Wire Sn25Pb75 25 75?

When using soldering wire 25 75 for electronics assembly, we need to use soldering irons or soldering stations.


While for using this solder wire for metal joinery such as radiator assembly or jewelry soldering, we will use torch guns.


Precaution for using Tin Lead Solder Wire Sn25Pb75 25 75:

Use in a Well-Ventilated Area: Always solder in a well-ventilated space, such as a fume hood or near an open window, and use exhausting fan. Proper ventilation helps to dissipate harmful fumes and reduce the risk of inhaling lead vapors.


Wear Personal Protective Equipment (PPE): Consider wearing appropriate personal protective equipment, including safety glasses, gloves, and a lab coat or apron, to minimize skin and eye contact with solder and flux.


Avoid Ingestion and Hand-to-Mouth Contact: Never eat, drink, or smoke while working with leaded solder. Wash your hands thoroughly after handling solder and before eating or touching your face.



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