Description / Abstract:
Purpose
This specification establishes testing methods and maximum
permissible limits for trace elements in nickel alloy castings.
Application
These products have been used typically for limited use to
achieve premium-quality material for highly-stressed rotating
parts, such as turbine blades, where control of trace elements is
required to maintain elevated-temperature tensile, stressrupture,
creep, and low-cycle fatigue properties, but usage is not limited
to such applications.
It is intended that this specification be invoked only for
selected applications by stipulation on drawings, purchase orders,
or other documentation supplementing the material specification or
in material specifications.