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Tin Lead Solder Wire Sn30Pb70 30 70


Tin Lead Solder Wire Sn30Pb70 30 70

Solder Wire 30 70

Tin Lead Solder Wire 30 70, scientifically known as solder wire Sn30Pb70, is a soldering material composed of 30% tin (Sn) and 70% lead (Pb). This solder wire is crafted to offer an affordable solder material but with reasonable solderability.


Specifications of Tin Lead Solder Wire Sn30Pb70 30 70

Alloy Composition

30% Tin (Sn), 70% 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

Many Diameters

Different Weights of Solder Wire

Various Weights

Rosin Flux Core Tin Lead Solder Wire

Flux Core

Features of Tin Lead Solder Wire Sn30Pb70 30 70:

Good Performance

It has a good fluidity, fast wetting property, and a rare occurrence of   oxidizing slag.

Higher Melting Point

It has a higher melting point and it's suitable for applications that requires more resistance to heat.


This solder wire 30 70 is pre-fluxed in the core, and users can conduct the soldering directly with it, there is no need to add extra flux.

Very Good Price

As this solder contains less tin and higher lead, its material cost is lower and make it affordable for most users.


Applications of Tin Lead Solder Wire Sn30Pb70 30 70:

It is used for electronics and electrical equipment manufacturing and repairing.


It is used for radiators end plate joinery.


It is used for copper plumbing system assembly.

Radiator soldering with solder wire

Radiator Manufacturing

jewelry making with solder wire

Jewelry Making

Manual Soldering with solder wire

PCB Soldering


How to use Tin Lead Solder Wire Sn30Pb70 30 70?

For general electronics and electrical soldering project, we can use soldering irons or soldering stations to do the soldering.


For plumbing and radiator assembly, we recommend to use solid solder wire without flux, and use torch gun to do the soldering and apply the compatible flux in separate.


Precaution for using Tin Lead Solder Wire Sn30Pb70 30 70:

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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