Grade K Solder
Short Melting Range for General Applications
DKL Metals supplies Grade K solder alloy. This premium 60/40 tin-lead alloy suits electrical and metalworking tasks. Buy 60/40 Sn/Pb solder alloy online in the UK now. It’s
relatively low melting point allows it to be used at temperatures where damage to heat sensitive components
could be experienced It has often been used in the electrical and metal working industries.
Chemical Composition of Grade K 60/40 Solder Alloy
| Element | Percentage (% by weight) |
|---|---|
| Tin (Sn) | 59.0 – 60.0 |
| Lead (Pb) | Balance |
| Antimony (Sb) | 0.50 max |
| Copper (Cu) | 0.08 max |
| Zinc (Zn) | 0.003 max |
| Iron (Fe) | 0.02 max |
| Nickel (Ni) | – |
| Bismuth (Bi) | 0.10 max |
| Cadmium (Cd) | 0.005 max |
| Silver (Ag) | – |
| Gold (Au) | – |
| Arsenic (As) | 0.03 max |
| Aluminium (Al) | 0.001 max |
| Indium (In) | – |
| Phosphorus (P) | – |
Key Features of DKL Grade K Leaded Solder
- Narrow Melting Range Solder: Solidus hits 183°C. Liquidus reaches 188°C, providing a short 5°C plastic range. Ideal for many general soldering jobs where controlled cooling is possible.
- High Tensile Strength: Delivers 5.98 kg/mm² at 21°C. Shear strength offers 3.94 kg/mm² on steel.
- Excellent Flow Properties: Density measures 8.55 g/cm³. Wets copper, brass and mild steel easily.
- ISO Standards Compliance: Meets ISO 9453:2020 Alloy 103. Matches former BS219 Grade K specs.
Applications for Grade K 60/40 Tin Lead Solder
Grade K excels in electrical connections, also can be used for sheet metal work too. Pairs with DKL Activated Fluxes. Choose Alcohol Resin flux for brass and copper.
Packaging Options
We stock blowpipe strips (85g), tinmans sticks (250g, 125g), 1 kg bars, and chunks.
DKL Quality Assurance
DKL Metals ensures every batch of Grade K solder meets stringent quality control standards, maintaining precise chemical composition and performance testing. Our ISO-compliant manufacturing process guarantees consistency and reliability for your critical soldering and repair applications.
Learn More About DKL Blowpipe Solder UK
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