Description

Alloy 75 is a nickel-based alloy known for its exceptional corrosion resistance, high strength, and excellent thermal stability. It is primarily used in extreme environments where resistance to acid, alkali, and high-temperature oxidation is crucial.

Applications

Alloy 75 is widely used in chemical processing equipment, aerospace components, gas turbines, heat exchangers, and other applications where resistance to corrosion and high temperatures is required.

Blacksmith Applications

Alloy 75 is commonly used by blacksmiths for creating specialized tools such as high-temperature resistant tongs, forge welding dies, and other applications where strength, heat resistance, and corrosion resistance are essential.

Alloy 75 Forging Temperature

Forging should be done between 1900°F - 2100°F (1038°C to 1149°C), followed by air cooling or rapid quenching in water or oil.

Alloy 75 Heat Treatment

Alloy 75 Annealing Temperature

Annealing is typically performed at 1800°F (982°C) for a sufficient amount of time, followed by slow cooling in the furnace to relieve internal stresses and improve ductility.

Alloy 75 Normalizing Temperature

Normalizing can be carried out at 1800°F to 2000°F (982°C to 1093°C) for a proper soak time, followed by air cooling.

Alloy 75 Hardening Temperature

Alloy 75 does not undergo a traditional hardening process, as it is a precipitation-hardening alloy. Strengthening is achieved through a solution treatment followed by aging.

Alloy 75 Tempering Temperature

N/A

Machinability

Alloy 75 has a machinability rating of approximately 30, indicating it is a difficult-to-machine alloy. Specialized cutting tools and techniques should be employed for machining operations.

Weldability

Alloy 75 has good weldability. However, it is important to use appropriate filler materials and follow specific welding procedures to ensure proper joint integrity and maintain desired properties.