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Welcome to XF SOLDER, your premier Chinese factory and leading global exporter of high-quality soldering materials. With years of expertise in metallurgy and flux chemistry, we pride ourselves on delivering consistency, reliability, and performance. Today, we are proud to present our flagship product: Tin Solder 40% Pb60Sn40 Sn40 with Flux in Reels. Engineered specifically for the demanding needs of electrical work, this solder wire offers the perfect balance between melting point, wetting ability, and joint strength.
Whether you are an electronics manufacturer, a maintenance contractor, or a hobbyist, our Tin Solder Pb60Sn40 ensures flawless connections every time. Read on to discover why XF SOLDER is the trusted name in soldering solutions worldwide.
The Tin Solder 40% (also known as Tin Solder Pb60Sn40 or Sn40) is a lead-based alloy where 40% of the composition is Tin (Sn) and 60% is Lead (Pb). This specific ratio is celebrated in the industry for its wide plastic range, making it exceptionally forgiving during manual and automated soldering processes.
Key Specifications:
Alloy: Sn40/Pb60 (Tin 40%, Lead 60%)
Flux Type: Activated Rosin (RMA) – non-corrosive, halogen-free
Flux Content: 2.0% – 3.0% (standard)
Melting Point: Approx. 190°C – 230°C (Eutectic-like performance)
Diameters Available: 1.6mm and 1.8mm
Reel Weights: 100g, 150g, 200g, 250g, 500g
When you select Tin Solder Sn40 for Electrical Work, you are choosing a material that offers superior conductivity and long-term reliability. The lead content provides ductility, which prevents cracking from thermal expansion and vibration—common issues in electrical panels and power circuits. The 40% tin ensures excellent wettability, allowing the solder to flow smoothly into tight spaces.
XF SOLDER understands that different projects require different quantities. That is why we offer our Tin Solder Sn40 with Flux in a comprehensive range of reel weights and diameters to suit any production scale.
Tin Solder Sn40 1.6mm: The 1.6mm diameter is the industry standard for general-purpose electrical wiring. It fits perfectly with most soldering iron tips and provides a balanced feed rate for precise control.
Tin Solder Sn40 1.8mm: The 1.8mm diameter is specifically designed for heavier applications. It allows for faster heat transfer and greater solder volume delivery, making it ideal for large gauge wires and terminal connections in power distribution.
We produce Tin Solder Sn40 with Flux in the following reel sizes to maximize efficiency and reduce waste:
Tin Solder Sn40 with Flux 100gr: Perfect for occasional repairs and small-scale lab work. The 100g spool is lightweight and easy to handle.
Tin Solder Sn40 with Flux 150gr: A slightly larger option for maintenance personnel who require portability without frequent spool changes.
Tin Solder Sn40 with Flux 200gr: The 200gr offering is a popular choice for medium-sized production runs.
Tin Solder Sn40 with Flux 250gr: An excellent balance of capacity and ergonomics, often used in assembly lines.
Tin Solder Sn40 with Flux 500gr: The 500gr heavy-duty reel is built for high-volume manufacturing. It reduces downtime caused by spool replacement, ensuring continuous workflow.
As a dedicated Chinese factory and exporter, XF SOLDER operates under strict ISO 9001 standards. Every batch of Tin Solder Pb60Sn40 with Flux undergoes rigorous testing to guarantee:
Alloy Purity: We use 99.99% pure tin and lead to ensure minimal impurities.
Flux Consistency: Our flux core is homogeneously distributed to prevent spattering and void formation.
Excellent Solderability: Our product meets IPC J-STD-004 requirements.
Many users often wonder why flux is essential. Our Tin Solder Sn40 with Flux contains a high-quality rosin flux that chemically removes oxidation from the surfaces being joined. This ensures a metallurgical bond rather than just a "tack" weld. For Electrical Work, this is critical because a poor bond leads to high resistance, heat generation, and eventual failure. Our flux leaves a clear, non-conductive residue that can be left in place or easily cleaned with isopropyl alcohol.
Our Tin Solder 40% is versatile but shines brightest in specific domains:
General Wiring: Connecting switches, outlets, and junction boxes.
Automotive Electrical Systems: Repairing harnesses and sensors.
Power Supply Assembly: Soldering transformers and capacitors to boards.
DIY Electronics: Building audio equipment and prototypes.
To get the best results from your Tin Solder Pb60Sn40, follow these professional tips:
Temperature: Set your iron to 320°C – 350°C.
Tip Maintenance: Keep the tip tinned to ensure efficient heat transfer.
Feed the Solder: Apply the Tin Solder Sn40 with Flux to the joint, not the iron, to allow the flux to activate properly.
Here we address common queries regarding our Tin Solder 40% Pb60Sn40 product line.
Q1: What is the difference between Sn40 and Sn60Pb40 solder?
A: While Sn60Pb40 is a near-eutectic alloy, Tin Solder Pb60Sn40 (Sn40) has a slightly wider plastic range. This means it stays in a "slushy" state longer before solidifying. For Electrical Work, this is advantageous because it gives you more time to adjust components before the joint cools. It is also more cost-effective for heavy-duty soldering where extreme precision is less critical.
Q2: Is your Tin Solder Sn40 with Flux safe for use on sensitive electronics?
A: Absolutely. Our activated rosin flux is specifically formulated to be non-corrosive and halide-free. We recommend it for both sensitive electronics and general Electrical Work. However, for ultra-fine SMD (Surface Mount Device) work, you might prefer a thinner diameter, though our Tin Solder Sn40 1.6mm works perfectly for through-hole components.
Q3: Which weight reel should I choose?
A: It depends on your usage frequency. For occasional repairs, the Tin Solder Sn40 with Flux 100gr is ideal and cost-effective. For daily workshop use, we recommend the Tin Solder Sn40 with Flux 250gr or Tin Solder Sn40 with Flux 500gr to minimize re-ordering. The 500gr reel is our best-seller among export clients due to its high value.
Q4: Why do you offer both 1.6mm and 1.8mm diameters?
A: The Tin Solder Sn40 1.6mm is the universal standard for most applications. However, the Tin Solder Sn40 1.8mm is specifically offered for larger gauge wires (e.g., 12 AWG and above) and terminals where you need to fill a large joint quickly. The thicker wire feeds more solder per second, speeding up heavy Electrical Work.
Q5: Does the flux core contain lead?
A: No. The "Pb" in Tin Solder Pb60Sn40 refers to the alloy composition. The flux core is strictly organic materials (rosin) and activators. It is lead-free and safe for handling, though standard hygiene practices (washing hands after soldering) are always recommended.
Q6: What is the shelf life of your Tin Solder Sn40 with Flux?
A: When stored in a cool, dry place (below 25°C and away from direct sunlight), our Tin Solder Sn40 with Flux 250gr and other sizes have a shelf life of 24 months. The flux remains active for the entire duration if the seal is kept intact.
Q7: Do you provide custom packaging or labeling?
A: Yes! As a direct Chinese factory and exporter, XF SOLDER specializes in OEM/ODM services. We can spool the Tin Solder Sn40 with Flux into custom-colored reels or apply your brand label for bulk orders. Please contact our sales team to discuss your requirements.
Q8: How do I clean the residue after using Tin Solder Sn40 for Electrical Work?
A: The residue left by our Tin Solder Sn40 with Flux is non-conductive and can be left on the board if aesthetics are not a concern. For applications requiring high insulation resistance, you can clean the residue easily using a brush and isopropyl alcohol (IPA). The residue dissolves quickly due to the rosin base.
XF SOLDER is not just a distributor; we are the manufacturer. This distinction provides our global customers with distinct advantages:
Competitive Pricing: By eliminating middlemen, we offer the best rates for Tin Solder 40% without compromising quality.
Consistent Supply: Our production capacity ensures that whether you need 100gr or 500gr spools, we maintain sufficient inventory.
Quality Control: From ingot melting to wire drawing and flux filling, we control every step of the process for our Tin Solder Pb60Sn40.
Global Logistics: We have extensive experience exporting to North America, Europe, and Southeast Asia. We handle all necessary export documentation, ensuring your Tin Solder Sn40 with Flux arrives on time.
In summary, the Tin Solder 40% Pb60Sn40 Sn40 with Flux in Reels from XF SOLDER represents the ideal union of quality, versatility, and value. Whether you are selecting the Tin Solder Sn40 with Flux 150gr for a mobile repair kit or the Tin Solder Sn40 with Flux 500gr for an assembly plant, you are choosing a product that guarantees strong, reliable connections.
Do not settle for inferior alloys that compromise your Electrical Work. Choose the professionalism that comes from a dedicated Chinese factory.
Contact XF SOLDER Today:
Email: xfsolder@163.com or xfsolder@gmail.com
Website: www.xfsolders.com
WhatsApp/Wechat: +8613450770997
Request your sample of Tin Solder Sn40 1.6mm or Tin Solder Sn40 1.8mm now and experience the XF SOLDER difference.
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