| 摘要 |
PROBLEM TO BE SOLVED: To provide a Sn-base plated steel sheet superior in solderability and whiskering property, for a material used for household electrical appliances or electronic components, which is jointed by soldering. SOLUTION: The Sn-base plated steel sheet superior in solderability and the whiskering property, and the manufacturing method, comprise a Sn-Fe alloy layer containing 0.2-2 g/m2 as Sn, as an underlayer of at least one side of the steel sheet, and a Sn-Ag alloy layer containing 1-30 g/m2 as Sn, as the top layer.
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