Solderability

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Solderability defines whether a solder can perform as intended in-service under normal fabrication methods or processes. The electronic industry has a consensus specification which provides guidelines for classifying, testing, marking, and packaging accepted solder compositions.

Some metals are easier to solder than others.

• Copper is very easy to solder as long as it is clean and you use flux.
• Lead also solders easily, but it is fairly easy to get the lead too hot so that it melts.
• Aluminium is problematic to solder as it oxidizes very quickly.
• Tin solders well, and is used as a coating on many electronic parts.
• Steel solders readily.
• Brass solders well.