Q1: What is Incoloy 907 (UNS N19907)?
A1: Incoloy 907 (UNS N19907) is a nickel-iron-cobalt alloy with controlled thermal expansion, excellent strength, and high resistance to stress rupture. It is specifically designed for use in aerospace and turbine applications where dimensional stability and creep resistance are critical.
Q2: Why is Incoloy 907 suitable for gas turbine seals?
A2: Incoloy 907 has a low coefficient of thermal expansion and maintains high strength at elevated temperatures. This makes it ideal for gas turbine seals, where minimal thermal distortion and long-term durability are essential under extreme heat and pressure conditions.
Q3: What are the key properties of Incoloy 907 sheets and plates?
A3: Key properties include:
High yield and tensile strength
Excellent stress-rupture and creep resistance
Low thermal expansion
Good weldability and fabricability
These features ensure reliable performance in demanding turbine environments.
Q4: In what forms and standards are Incoloy 907 sheets/plates supplied?
A4: Incoloy 907 is typically supplied as hot-rolled or cold-rolled sheets and plates in compliance with standards such as ASTM B637. Custom dimensions and surface finishes can be provided based on application requirements.
Q5: How is the price of Incoloy 907 alloy sheet/plate determined?
A5: The price depends on factors such as thickness, width, and length of the plate, order quantity, processing requirements (heat treatment, surface finishing), and fluctuations in raw material costs, especially nickel and cobalt.
