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。这些图表和可加工性、图表和热处理图表和图表。M238 VMR是一种淬火和回火的塑料模具钢，具有良好的清洁度，可获得最佳抛光性，是透镜模具的理想选择。由于添加了镍，钢块的整个横截面的硬度是一致的，即使是大尺寸的钢块。

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.M238 VMR is a hardened and tempered plastic mold steel with excellent cleanliness for best polishability, making it ideal for lens mold tooling. The hardness is consistent over the entire cross section of the steel block, even in large sizes, due to the addition of nickel.