Kester
Solder Wire: Kester .031" 24-6337-0027 Sn63Pb37 3.3%/44
Solder Wire: Kester .031" 24-6337-0027 Sn63Pb37 3.3%/44
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Kester 24-6337-0027 Sn63Pb37 Solder Wire, 1 lb Spool (.031" Diameter) Rosin
Key Features:
- Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
- Diameter: .031" (0.8 mm)
- Weight: 1 lb (approximately 454 grams)
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Package Type: Spool (SPL)
- Flux Core: 3.3% 44 Rosin Activated Flux
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Melting Point: 183° C 361° F
Eutectic solder melts and solidifies at the same temperature.
.031" Diameter suitable for medium sized soldering jobs. Rosin Flux must be cleaned after use.
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Size Guide
Product measurements
| .010" (0.25 mm) |
Ultra fine sized diameter useful for |
| .015" (0.4 mm) |
Very fine sized diameter useful for precision soldering and jobs requiring small amounts of solder. |
| .020" (0.5 mm) |
Fine sized diameter used for through hole and and surface mount work. Delivers a Controlled amount of solder. |
| .025" (0.6 mm) |
Ideal for standard circuit board components where precision is needed but not ultra-fine work. |
| .031" (0.8 mm) |
Ideal for fixing circuit boards, replacing components, and general rework. Popular for Arduino, Raspberry Pi, and DIY projects. It's a versatile diameter, often called the "sweet spot" for electronics. |
| .040" (1.0 mm) |
Perfect for surface-mount devices (SMDs) and medium components where precision is key but more solder is needed. |
| .050" (1.27 mm) |
Used for various tasks where a balance of flow and control is required, like general electrical repairs. |
| .062" (1.5 mm) |
medium-thickness wire ideal for general electronics, larger through-hole components, appliance repair, automotive work, and crafts like stained glass |
| .093" (2.36 mm) |
versatile, medium-to-thick wire used for general and heavier-duty electrical, electronics, automotive, and HVAC repairs/manufacturing. |
Size guide text
Perfect for what i needed it for. Plus the tips were the right size.
The Best!
I like your product but wish it was packaged better. I purchased 3 rolls of solder and one of them was broken. Still usable but does not easily spool off of my solder stand.
Hi Daniel,
Thanks for the review! We're sorry to hear about the broken spool, I do usually try to add enough packing to make sure the items are secure so this feedback is a much appreciated note to be extra dilligent in shipments moving forward! We will make sure this doesn't happen again.
Concorde Solder team
This company is on top of their game. Good prices, huge selection, great communication.