LF2220NC Cored Solder Wire
Lead-Free, No-Clean Cored Wire for Rework
The LF2220NC Cored Solder Wire is a premium halide-free no-clean solder wire (REL0 classified) designed specifically for high-quality lead-free hand soldering and repair operations. Manufactured in partnership with Balver Zinn, its unique activation system ensures fast wetting on even difficult or oxidised surfaces, leaving minimal, clear, non-tacky residues.
Halide-Free & Low Corrosion (REL0)
This formulation meets the most stringent environmental and quality standards, classified as REL0 per J-STD-004 and EN 61190-1-1. It provides a guaranteed low corrosion risk, making it ideal for sensitive electronic assemblies.
Optimised for Rework & Hand Soldering
The activator system in the LF2220NC is perfectly balanced for manual rework and touch-up applications. It improves wetting and flow behaviour, even on boards that were previously soldered with tin/lead processes.
Wide Diameter Range & Flux Options
Available in a comprehensive range of diameters, from ultra-fine 0.35mm solder wire up to 3.5mm for heavier applications. Standard flux content is 2.2%, with a leaner 1.4% option also available upon request.
Top-Selling Alloys for LF2220NC
| Alloy Variant | Composition | Melting Point | Tensile Strength* |
|---|---|---|---|
| SN100C® | SnCu0.7Ni | 227°C | 32 |
| SN97C (SAC305) | SnAg3.0Cu0.5 | 208°C – 219°C | 50 |
| SN96C (SAC387) | SnAg3.8Cu0.7 | 217°C | 52 |
Packaging: Supplied on 250g, 500g, and 1kg reels. Minimum shelf life is 2 years when stored correctly at room temperature in a clean, dry environment.
Our Partnership with Balver Zinn
DKL Metals Ltd is the exclusive UK partner for Balver Zinn solder products, a global leader in lead-free solder technology. The LF2220NC wire is a licensed product within our extensive, high-performance range, meeting all relevant RoHS and REACH compliance standards. View the technical data sheet directly from the Balver Zinn website.
LF2220NC Cored Solder Wire FAQ
What is the full range of available alloys and properties?
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LF2220NC can be supplied in the following lead-free alloy configurations:
| Alloy | Composition | Melting Point (°C) | Tensile (Mpa) | Strain (%) |
|---|---|---|---|---|
| SN100C | SnCu0.7Ni | 227 | 32 | 48 |
| SN96C | SnAg3.8Cu0.7 | 217 | 52 | 27 |
| SN97C | SnAg3.0Cu0.5 | 208-219 | 50 | 32 |
| SnAg4 | Sn96Ag4 | 221 | 46 | 33 |
| SNSb5 | Sn95Sb5 | 230-240 | 46 | 38 |
| SnCu3 | Sn97Cu3 | 230-250 | 55 | 22 |
| SnCu0.7 | Sn99.3Cu0.7 | 227 | 32 | 48 |
| BiSn42 | Bi58Sn42 | 138 (Low Temp) | 75 | 33 |
Is the LF2220NC suitable for automated soldering?
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This wire is primarily formulated for hand soldering and manual rework applications. For high-heat automated processes, the LF3135NC product is often recommended due to its specific activator temperature profile.
How is the flux classified, and is it halide-free?
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The flux is classified as REL0 (EN 61190-1-1) or REL0 (J-STD-004). Yes, it is a genuine halide-free, no-clean rosin-based formulation designed for low corrosion risk applications.
What is the shelf life of this wire?
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When stored in a clean, dry environment at room temperature, LF2220NC cored solder wires have a minimum shelf life of 2 years from the manufacturing date.