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。Circle-C是一种高钴钨钢，具有不同寻常的红色硬度，特别适用于高产量刀具。

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.Circle-C is a high cobalt-tungsten steel having unusual red-hardness, and is particularly adapted for high production cutting tools.