牌號 | Pyrotool? Alloy 7 |
廠家 | Carpenter Technology Corporation |
分類 | Steel |
介紹 | Pyrotool alloy 7 is an austenitic precipitation hardenable nickel base alloy designed to display high tensile and yield properties at temperatures up to 1300°F (704°C). To achieve the best combination of hardness and toughness for tooling applications, Pyrotool alloy 7 is annealed and solution treated simultaneously at 1750°F (954°C) for one hour, then air cooled. It is then aged at 1325°F (718°C) for eight hours, slow cooled 100°F (38°C) per hour to 1150°F (621°C), held for eight hours and air cooled. Pyrotool alloy 7, when aged, attains a hardness of Rockwell C 40/44. Applications: Key uses for this grade have been: High-temperature tooling Extrusion dies Forging dies Rams Mandrels Holders Rings Dummy blocks Liners |
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