查看样本合金摘要数据表（PDF）自1952年以来，合金摘要一直是世界各地使用的金属和合金材料性能数据的主要参考。以图表、图表和表格为特色，这些表格给出了有关成分或特性、物理和机械性能、热处理和可加工性的事实和数字。BELMONT合金2451和2491是铋基共晶低熔点合金，用于模具和生产辅助工具；2451在117华氏度下熔化，2491在136华氏度下熔化。它们为工程师提供了易于浇注的材料，一旦冻结即可使用。这些合金可以很容易地回收，并且可以多次循环使用。 它们的主要用途是在研磨玻璃、塑料透镜和光学元件时挡住透镜。

View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.BELMONT ALLOYS 2451 and 2491 are bismuth-base, eutectic, low-melting alloys that are used for tooling and production aids; 2451 melts at 117 F and 2491 at 136 F. They provide the engineer with easily castable material that is ready for use as soon as it freezes. The alloys can be recovered easily and recycled into new uses any number of times. Their major use is for lens blocking when grinding glass and plastic lenses and optical components.