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Collection: 63/37 Solder – Kester Sn63Pb37 Solder Wire

Shop 63/37 solder wire for electronics assembly, PCB work, repair, and general soldering applications. Also known as Sn63Pb37, 63/37 solder contains 63% tin and 37% lead and is a popular choice for electronics work. Our selection includes Kester solder in multiple wire diameters, flux formulations, and spool sizes, making it easy to choose the right solder for your application. Browse Kester 63/37 rosin core solder and find the diameter and flux type that best fits your work.

Solder Wire: Kester .031" 24-6337-0027 Sn63Pb37 3.3%/44

Solder Wire: Kester .031" 24-6337-0027 Sn63Pb37 3.3%/44

4 total reviews

Regular price $49.55 USD

Regular price Sale price $49.55 USD
Unit price per
Solder Wire: Kester .031" 24-6337-9710 Sn63Pb37 3.3%/285

Solder Wire: Kester .031" 24-6337-9710 Sn63Pb37 3.3%/285

1 total reviews

Regular price $45.85 USD

Regular price Sale price $45.85 USD
Unit price per
Solder Wire: Kester .031" 24-6337-8800 Sn63Pb37 1.1%/245

Solder Wire: Kester .031" 24-6337-8800 Sn63Pb37 1.1%/245

Regular price $48.92 USD

Regular price Sale price $48.92 USD
Unit price per
Solder Wire: Kester .040" 24-6337-0039 Sn63Pb37 3.3%/44

Solder Wire: Kester .040" 24-6337-0039 Sn63Pb37 3.3%/44

Regular price $36.70 USD

Regular price Sale price $36.70 USD
Unit price per
Solder Wire: Kester .025" 24-6337-0018 Sn63Pb37 3.3%/44

Solder Wire: Kester .025" 24-6337-0018 Sn63Pb37 3.3%/44

1 total reviews

Regular price $49.19 USD

Regular price Sale price $49.19 USD
Unit price per
Solder Wire: Kester .031" 24-6337-8801 Sn63Pb37 2.2%/245

Solder Wire: Kester .031" 24-6337-8801 Sn63Pb37 2.2%/245

1 total reviews

Regular price $42.15 USD

Regular price Sale price $42.15 USD
Unit price per
Solder Wire: Kester .020" 24-6337-0010 Sn63Pb37 3.3%/44

Solder Wire: Kester .020" 24-6337-0010 Sn63Pb37 3.3%/44

1 total reviews

Regular price $57.49 USD

Regular price Sale price $57.49 USD
Unit price per
Solder Wire: Kester .015" 24-6337-8806 Sn63Pb37 1.1%/245

Solder Wire: Kester .015" 24-6337-8806 Sn63Pb37 1.1%/245

Regular price $68.10 USD

Regular price Sale price $68.10 USD
Unit price per
Solder Wire: Kester .020" 24-6337-8807 Sn63Pb37 1.1%/245

Solder Wire: Kester .020" 24-6337-8807 Sn63Pb37 1.1%/245

Regular price $57.22 USD

Regular price Sale price $57.22 USD
Unit price per
Solder Wire: Kester .062" 24-6337-0061 Sn63Pb37 3.3%/44

Solder Wire: Kester .062" 24-6337-0061 Sn63Pb37 3.3%/44

Regular price $44.89 USD

Regular price Sale price $44.89 USD
Unit price per
Solder Wire: Kester .020" 24-6337-6401 Sn63Pb37 3.3%/331

Solder Wire: Kester .020" 24-6337-6401 Sn63Pb37 3.3%/331

Regular price $57.76 USD

Regular price Sale price $57.76 USD
Unit price per
Solder Wire: Kester .015" 24-6337-0007 Sn63Pb37 3.3%/44

Solder Wire: Kester .015" 24-6337-0007 Sn63Pb37 3.3%/44

Regular price $78.11 USD

Regular price Sale price $78.11 USD
Unit price per
Solder Wire: Kester .010" 24-6337-9756 Sn63Pb37 3.3%/285

Solder Wire: Kester .010" 24-6337-9756 Sn63Pb37 3.3%/285

Regular price $97.01 USD

Regular price Sale price $97.01 USD
Unit price per
Solder Wire: Kester .031" 24-6337-9713 Sn63Pb37 2.2%/285

Solder Wire: Kester .031" 24-6337-9713 Sn63Pb37 2.2%/285

Regular price $54.87 USD

Regular price Sale price $54.87 USD
Unit price per
Solder Wire: Kester .031" 24-6337-6403 Sn63Pb37 3.3%/331

Solder Wire: Kester .031" 24-6337-6403 Sn63Pb37 3.3%/331

Regular price $48.14 USD

Regular price Sale price $48.14 USD
Unit price per
Solder Wire Kester .050" 24-6337-8814 Sn63Pb37 1.1%/245

Solder Wire Kester .050" 24-6337-8814 Sn63Pb37 1.1%/245

Regular price $45.44 USD

Regular price Sale price $45.44 USD
Unit price per