Used historically for specialized metalwork and coating applications.
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Category: Solder
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Silver-Bearing Solder
PCB assembly and repair, General electronics work where lead-free is required.
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Babbitt (Tin-Bearing)
Babbitt is a family of soft white bearing alloys (typically tin- or lead-based with antimony and copper). It’s used mainly for plain bearings and bearing linings. Babbitt is usually cast or poured as a lining onto a steel or bronze bearing shell.
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80-89% Sn Solder
Solder in the 80–89% tin range commonly includes high-tin alloys used for barrier coatings, electromagnetic (EMI) and radio-frequency (RF) shielding in capacitors and other electronic components. These compositions are also found in specialized solder applications requiring higher strength, improved corrosion resistance, or elevated temperature performance.
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70-79% Sn Solder
Solder in the 70–79% tin range commonly includes 70Sn/30Zn (tin-zinc) alloys used for aluminum-to-aluminum and aluminum-to-copper soldering applications. These materials are frequently used in capacitor spray wire, electronic components, and specialty applications requiring lower melting temperatures and high tensile strength compared to zinc-aluminum solders.
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50-59% Sn Solder
Older plumbing solder; used before lead-free requirements.
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60-69% Sn Solder
Solder in the 60–69% tin range is the standard in electronics assembly. These materials are commonly used in PCB manufacturing, circuit board repair, electrical components, and general electronics production.
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Solder Dross/Drippings
Solder drippings are molten solder that falls or splatters during soldering and then solidifies outside the intended joint. They are clean, usable solder metal, not oxidized waste, and typically result from excess solder, poor technique, or gravity on vertical surfaces.
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40-49% Sn Solder
Older electronic/mechanical solder; slower flow, higher melting point.
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20-39% Sn Solder
A traditional tin-lead solder alloy. It’s an older, reliable formulation that sits between soft solders and the harder lead-rich alloys. It delivers good flow with added strength from the higher lead content.