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。PEERLESS-A是一种低碳中钨热加工钢，具有优异的红色硬度。它用于工具运行暗红色加热的应用中。它符合AISI H21型、SAE H21型。

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.PEERLESS-A is a low carbon, medium tungsten hot work steel which possesses excellent red hardness. It is used in those applications where the tool operates a dull red heat. It conforms to AISI Type H21, SAE Type H21.