Refers to a tin-lead alloy used for pewter ware or as a soldering material. The reading しろめ is most common; はくろう and びゃくろう are technical or Sino-Japanese readings.
This vase is made of pewter.
Use solder for joining pipes.
Standard kanji spelling for pewter/solder; also read はくろう or びゃくろう in technical contexts.
Alternate kanji spelling; may be confused with 白目 (しろめ) meaning 'white of the eye'.
Mixed kanji-kana spelling; less common.
Composed of 白 (white) and 鑞 (solder/pewter). The exact historical derivation is uncertain; the spelling is conventionally associated with the tin-lead alloy.