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。伯利恒57HW是一种含9%钨的热作业工具钢，具有优异的红色硬度和耐磨性，在高温下具有相对较好的抗冲击性。它对应于AISI H21型热作业工具钢。

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.BETHLEHEM 57HW is the 9% tungsten type of hot-work tool steel, having excellent red-hardness and abrasion resistance compared with relatively good shock resistance for high operating temperatures. It corresponds to AISI Type H21 hot work tool steel.