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In the demanding world of electronics manufacturing, the quality of your solder joint directly determines the reliability, performance, and longevity of every circuit board you produce. Whether you're a professional PCB assembly house, a contract manufacturer, or an electronics repair specialist, the choice of soldering materials is one of the most critical decisions you'll make. Today, we're introducing our premium Tin Solder Pb40Sn60 – a versatile, high-performance soldering solution designed to meet the rigorous demands of modern electronics production.
This Tin Solder 60% composition offers the perfect balance of wettability, mechanical strength, and thermal stability, making it an indispensable material for through-hole and surface-mount applications alike. Available in convenient coil packaging options of 100g, 200g, 500g, and 1kg, with a standard diameter of 1.2mm, this Tin Solder with Resin Core ensures consistent, repeatable results across thousands of solder joints. Let's dive deep into why this product should be your go-to choice for Tin Solder for PCB Assembly.
The Tin Solder Pb40Sn60 alloy consists of 60% tin (Sn) and 40% lead (Pb), a ratio that has become the gold standard in the electronics industry. This Tin Solder 60% formulation is widely recognized for its near-eutectic properties, which translate into:
Low melting point (approximately 183-190°C) – reducing thermal stress on sensitive components
Excellent fluidity – enabling superior wetting and capillary action
Narrow plastic range – allowing for faster solidification and reduced cold-joint formation
Superior tensile strength – ensuring mechanical robustness in finished assemblies
This Tin Solder Sn60 composition is not merely a random choice; it's the result of decades of metallurgical refinement to achieve optimal performance in automated and manual soldering processes. When you choose our Tin Solder Pb40Sn60, you're selecting an alloy that has been proven across millions of assemblies worldwide.
What sets this Tin Solder with Resin Core apart from solid wire options is the integrated flux system. The resin core, precisely formulated for electronics applications, delivers multiple benefits:
Instant activation at soldering temperatures
Effective oxide removal from both the solder and the base metals
Excellent spreading on copper, tin-lead, and other common PCB finishes
Non-corrosive residue that can be left in place or easily cleaned
Consistent performance throughout the entire coil length
Our Tin Solder with Resin Core is engineered to provide just the right amount of flux activity – aggressive enough to handle moderately oxidized surfaces, yet mild enough to prevent residue-related issues in sensitive circuits. This makes our Tin Solder 60% ideal for both new PCB assembly and rework operations.
Understanding that different production volumes require different packaging, we offer our Tin Solder 60% in four convenient coil sizes:
| Package Size | Ideal For | Coil Weight | Approximate Length |
|---|---|---|---|
| Tin Solder 60% 100g | Prototyping, small repairs, hobbyist use | 100 grams | ~15-18 meters |
| Tin Solder 60% 200g | Medium-volume production, service shops | 200 grams | ~30-36 meters |
| Tin Solder 60% 500g | High-mix production lines, maintenance departments | 500 grams | ~75-90 meters |
| Tin Solder 60% 1kg | Mass production, continuous assembly lines | 1 kilogram | ~150-180 meters |
Each spool of Tin Solder Pb40Sn60 is wound with precision to ensure smooth, tangle-free feeding through both manual soldering irons and automated soldering robots. The Tin Solder 60% 1kg option is particularly popular among high-volume manufacturers who require consistent quality across thousands of assemblies per shift.
Our Tin Solder 60% 1.2mm diameter represents the optimal balance for general electronics assembly. At 1.2mm, this Tin Solder for PCB Assembly offers:
Sufficient volume for through-hole component leads (0.6-1.0mm diameter holes)
Fine enough for most surface-mount components (1206, 0805, and some 0603 packages)
Manageable feed rate for both manual and automated applications
Reduced splatter compared to larger diameters
Excellent heat transfer characteristics
The Tin Solder 60% 1.2mm diameter is the most commonly requested size for PCB assembly operations, striking the perfect compromise between feeding control and deposition volume. Whether you're soldering connectors, ICs, capacitors, or resistors, this diameter gives you the versatility to handle the vast majority of assembly tasks.
Superior wetting is the hallmark of quality Tin Solder for PCB Assembly. Our Tin Solder Pb40Sn60 exhibits exceptional wetting characteristics due to the precise alloy composition and the high-quality resin core. When tested against industry standards, our Tin Solder 60% demonstrates:
Wetting time of less than 2 seconds at 250°C (per J-STD-003)
Spreading factor exceeding 85% on copper substrates
Zero bridging when properly applied
Excellent fillet formation with consistent concave profiles
These properties make our Tin Solder with Resin Core particularly effective for fine-pitch components where controlled flow is essential to prevent shorts and opens.
The mechanical integrity of solder joints created with our Tin Solder Sn60 has been validated through extensive testing:
Tensile strength: 45-50 MPa (exceeding most assembly requirements)
Shear strength: 30-35 MPa (ensuring joint durability)
Creep resistance: Minimal deformation under load at operating temperatures
Thermal cycling performance: Withstands 1000+ cycles from -40°C to +125°C without failure
These characteristics ensure that assemblies produced with our Tin Solder 60% maintain their electrical and mechanical integrity throughout the product's intended lifespan.
Our Tin Solder for PCB Assembly demonstrates excellent compatibility with common PCB surface finishes:
| PCB Finish | Compatibility | Performance Notes |
|---|---|---|
| HASL (Hot Air Solder Leveling) | Excellent | Ideal for standard assemblies |
| ENIG (Electroless Nickel Immersion Gold) | Excellent | Superior wetting, low defect rate |
| OSP (Organic Solderability Preservative) | Very Good | Requires proper preheating |
| Immersion Silver | Excellent | Perfect for high-frequency applications |
| Immersion Tin | Good | May require careful temperature control |
The versatility of our Tin Solder Pb40Sn60 across these finishes makes it a universal choice for assembly operations handling diverse PCB types.
To achieve optimal results with our Tin Solder with Resin Core, we recommend the following parameters:
Hand Soldering:
Iron temperature: 300-350°C (adjust based on component sensitivity)
Tip selection: Chisel or conical, appropriately sized for the pad
Dwell time: 2-4 seconds per joint
Feed rate: 10-15 mm of solder per joint
Wave Soldering:
Solder pot temperature: 250-260°C
Conveyor speed: 1.2-1.8 m/min
Preheat zone: 90-110°C for 60-90 seconds
Flux application: Controlled, compatible with the resin core
Automated Selective Soldering:
Temperature: 280-310°C
Solder dwell: 1-3 seconds
Nitrogen assist: Recommended for improved wetting
When using our Tin Solder 60% 1.2mm, these parameters ensure consistent, high-quality joints with minimal defects.
To maintain the quality of your Tin Solder for PCB Assembly, follow these handling guidelines:
Store in a cool, dry environment (15-25°C, <40% RH)
Avoid exposure to direct sunlight or heat sources
Keep the spool in its original packaging until use
Handle with clean, powder-free gloves to prevent contamination
Inspect the resin core for consistency before each use
Proper handling of our Tin Solder with Resin Core ensures that the flux remains active and the alloy remains free from oxidation, delivering consistent results throughout the entire coil.
Each batch of our Tin Solder Pb40Sn60 is produced under strict quality control protocols that meet or exceed:
IPC J-STD-006 – Requirements for electronic grade solder alloys
RoHS compliance (exemptions applied for leaded alloys)
REACH regulations
ISO 9001:2015 certified manufacturing processes
Our Tin Solder 60% undergoes rigorous testing at every production stage:
| Test Parameter | Method | Acceptance Criteria |
|---|---|---|
| Alloy Composition | XRF Spectroscopy | Sn: 59.5-60.5%, Pb: 39.5-40.5% |
| Flux Content | Gravimetric Analysis | 2.0-2.5% by weight |
| Halide Content | Ion Chromatography | <0.05% |
| Copper Contamination | ICP-OES | <0.02% |
| Solderability | Wetting Balance Test | ≤2 seconds wetting time |
| Sphericity | Optical Inspection | No irregular shapes in flux |
Every coil of our Tin Solder 60% 100g, Tin Solder 60% 200g, Tin Solder 60% 500g, and Tin Solder 60% 1kg comes with:
Batch-specific certificates of compliance
Full traceability from raw material to finished product
Material Safety Data Sheets (MSDS)
Technical data sheets with complete specifications
Shelf-life recommendations (typically 24 months from manufacture)
This commitment to quality assurance ensures that whether you're purchasing Tin Solder 60% 100g for a prototype or Tin Solder 60% 1kg for full-scale production, you receive a product that performs exactly as expected.
The true cost of solder isn't just the purchase price—it's the total cost of assembly, including rework and scrap. Our Tin Solder for PCB Assembly helps reduce overall costs by:
Minimizing cold joints through superior wetting
Reducing voiding via controlled outgassing
Eliminating flux-related failures with its clean-residue formulation
Decreasing tip cleaning frequency due to reduced dross formation
Enabling faster throughput with optimized melting characteristics
Manufacturers using our Tin Solder Pb40Sn60 report defect rate reductions of 30-50% compared to lower-grade solders, translating to significant savings in rework labor and material costs.
One of the greatest economic advantages of our Tin Solder 60% is its versatility. The same Tin Solder 60% 1.2mm that works for through-hole components also performs excellently for:
Surface-mount component soldering
Wire-to-board terminations
Connector and header assembly
Rework and touch-up operations
Prototyping and development
This versatility allows manufacturers to standardize on a single Tin Solder with Resin Core product across multiple production areas, reducing inventory complexity and simplifying training requirements.
A: These terms refer to the same alloy composition. Tin Solder 60% indicates that the alloy contains 60% tin by weight, while Tin Solder Pb40Sn60 specifies the exact composition: 40% lead and 60% tin. Both designations describe our product, with Tin Solder Sn60 being another equivalent naming convention. The tin-lead ratio of 60/40 is considered near-eutectic, providing optimal soldering characteristics for electronics assembly.
A: Our Tin Solder with Resin Core is specifically designed for leaded soldering processes. While the flux system is compatible with some lead-free finishes, the alloy itself contains lead and should not be used where lead-free assemblies are required by regulation or customer specification. For lead-free requirements, we offer complementary products with SAC (Sn-Ag-Cu) alloys.
A: When stored under recommended conditions (15-25°C, <40% RH), our Tin Solder 60% coils remain usable for up to 24 months from the date of manufacture. The Tin Solder with Resin Core retains its flux activation potential throughout this period. We recommend using a FIFO (First-In-First-Out) inventory system to ensure you're always using the freshest material.
A: Yes, our Tin Solder for PCB Assembly is fully compatible with ceramic capacitors. However, as with any soldering operation involving ceramic components, care should be taken to avoid thermal shock. We recommend preheating the PCB to 80-100°C and limiting dwell time to 2-3 seconds when hand-soldering ceramic components with our Tin Solder 60% 1.2mm.
A: The difference lies in the coil size and packaging configuration. Our Tin Solder 60% 500g comes in a standard spool suitable for most bench-top and automated feeders, while the Tin Solder 60% 1kg is typically provided on a larger spool designed for high-volume automated soldering systems. Both contain the same high-quality Tin Solder Pb40Sn60 alloy and Tin Solder with Resin Core formulation.
A: While Tin Solder Sn60 (60/40) and Sn63Pb37 (63/37) are both popular tin-lead alloys, the Sn63 has a truly eutectic composition with a single melting point (183°C), whereas our Tin Solder Pb40Sn60 has a slightly wider plastic range (183-190°C). This makes our Tin Solder 60% slightly more forgiving in manual soldering applications, as it provides a longer working time before solidification. Both alloys produce excellent joints; the choice often comes down to personal preference and specific application requirements.
A: Our Tin Solder with Resin Core features a mildly activated rosin flux that contains less than 0.05% halides by weight. While not strictly "halide-free," the halide content is low enough that residues are non-corrosive under normal conditions. For applications requiring halide-free flux, we offer specialized variants – please consult our technical team for recommendations.
A: For our Tin Solder 60% 1.2mm, we recommend a soldering iron tip temperature between 300°C and 350°C. The exact temperature depends on factors such as:
Component thermal mass
PCB copper thickness
Board surface finish
Soldering speed
Starting at 320°C and adjusting based on visual inspection of joint quality is a good practice. Higher temperatures can degrade the Tin Solder with Resin Core flux prematurely, while lower temperatures may result in poor wetting.
A: Yes, our Tin Solder for PCB Assembly can be applied using hot-air rework systems. The Tin Solder Pb40Sn60 alloy responds well to hot-air heating, and the Tin Solder with Resin Core activates properly when the joint reaches the appropriate temperature. We recommend using solder paste for surface-mount component placement and our Tin Solder 60% for touch-up and through-hole repairs.
A: The residue from our Tin Solder with Resin Core is non-corrosive and can typically be left in place, especially for non-critical applications. If cleaning is required, the residue can be easily removed using:
Isopropyl alcohol (IPA)
Specialized flux removers
Ultrasonic cleaning systems (with appropriate solutions)
For assemblies requiring high insulation resistance (e.g., high-voltage applications), we recommend cleaning with IPA and a soft brush followed by a rinse with deionized water.
A: The Tin Solder 60% 200g coil provides approximately 30-36 meters of solder wire at 1.2mm diameter. Assuming an average consumption of 5-10 mm per through-hole joint, this would cover 3000-7000 typical joints. For 1000 boards with an average of 5 joints per board, the Tin Solder 60% 200g would be more than sufficient. However, for high-density assemblies, we recommend the Tin Solder 60% 500g or Tin Solder 60% 1kg options to ensure uninterrupted production.
A: Our Tin Solder Pb40Sn60 is compatible with most lead-free PCB finishes, but it's important to note that mixing leaded and lead-free materials can create contamination concerns. The primary issue is that lead can contaminate lead-free solder baths, changing their melting characteristics and potentially compromising the integrity of subsequent lead-free assemblies. Therefore, we recommend using dedicated equipment for Tin Solder for PCB Assembly if your facility processes both leaded and lead-free products.
Every coil of our Tin Solder with Resin Core undergoes multiple quality checkpoints. From raw material verification to final packaging inspection, we maintain rigorous control over:
Alloy purity (trace element analysis)
Flux activity (wetting balance testing)
Wire diameter consistency (laser measurement)
Coil winding integrity (automated inspection)
Packaging robustness (drop and seal testing)
This commitment to quality means that when you purchase Tin Solder Sn60 from us, you receive a product that performs identically coil after coil, batch after batch.
Choosing our Tin Solder for PCB Assembly gives you access to our team of soldering specialists who can assist with:
Process optimization
Joint quality troubleshooting
Equipment compatibility guidance
Custom packaging requirements
Regulatory compliance questions
We understand that every assembly operation is unique, and our experts are ready to help you get the most from our Tin Solder 60% products.
We source our tin and lead from suppliers committed to:
Responsible mining practices
Conflict-free material sourcing
Environmental stewardship
Fair labor practices
This ensures that our Tin Solder Pb40Sn60 not only meets your technical requirements but also aligns with your corporate social responsibility goals.
| Product Description | Item Code | Packaging Type | Quantity per Box |
|---|---|---|---|
| Tin Solder 60% 100g | TS60-100-RC-12 | Plastic spool in sealed bag | 20 spools |
| Tin Solder 60% 200g | TS60-200-RC-12 | Plastic spool in sealed bag | 20 spools |
| Tin Solder 60% 500g | TS60-500-RC-12 | Plastic spool in sealed bag | 10 spools |
| Tin Solder 60% 1kg | TS60-1000-RC-12 | Plastic spool in sealed bag | 10 spools |
All versions feature our premium Tin Solder with Resin Core and the standard Tin Solder 60% 1.2mm diameter. For custom diameters or packaging, please contact our sales team.
Our Tin Solder for PCB Assembly products are:
Available from stock for standard quantities
Custom orders typically ship within 5-7 business days
Emergency shipments available upon request
Global shipping to over 80 countries
In the competitive world of electronics manufacturing, the quality of your Tin Solder for PCB Assembly directly impacts product reliability, production efficiency, and overall profitability. Our Tin Solder Pb40Sn60 with its Tin Solder 60% alloy composition, Tin Solder with Resin Core flux system, and available packaging options from Tin Solder 60% 100g to Tin Solder 60% 1kg with Tin Solder 60% 1.2mm diameter represents the ideal solution for professionals who demand consistent, reliable, and cost-effective soldering results.
Whether you're performing precision repairs, prototyping new designs, or operating a high-volume assembly line, our Tin Solder Sn60 delivers the performance you need. The combination of proven alloy chemistry, high-quality resin core, meticulous manufacturing standards, and comprehensive technical support makes our Tin Solder for PCB Assembly the smart choice for electronics professionals worldwide.
We invite you to experience the difference that genuine quality makes. Order your Tin Solder 60% today – in whatever quantity you need – and discover why thousands of manufacturers trust our products for their most critical assemblies. For bulk inquiries, custom specifications, or technical consultation, our team is ready to assist.
Choose reliability. Choose performance. Choose our Tin Solder Pb40Sn60 for your PCB assembly needs.
Contact us:
Email: xfsolder@163.com or xfsolder@gmail.com
WhatsApp/Wechat: +8613450770997
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