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。AISI T4型是在传统的18%钨-4%铬-1%钒（AISI T1型）工具钢中添加5%钴制成的。钴溶解在铁素体中，强化钢基体，而其他合金元素形成碳化物。因此，钴会增加热硬度或红色硬度，从而使刀具在高温下保持更高的硬度。 T4型建议用于使用重型车床、刨床和镗刀的中拱切削，或刀具切削点温度大幅升高的情况。它非常适用于切割坚硬的砂砾材料，如铸铁或其他研磨材料，以及高速切割有色金属合金。

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.AISI Type T4 is made by adding 5% cobalt to the conventional 18% tungsten-4% chromium-1% vanadium (AISI Type T1) tool steel. The cobalt dissolves in the ferrite and strengthens the matrix of the steel whereas the other alloying elements form carbides. Thus the cobalt increases the hot or red hardness, thereby enabling the tool to maintain a higher hardness at elevated temperatures. Type T4 is recommended for hogging cuts with heavy-duty lathe, planer and boring tools, or where the temperature of the cutting point of the tool is increased greatly. It is well adapted for cutting hard, gritty materials such as cast iron or other abrasive materials and for cutting nonferrous alloys at high speeds.