Description / Abstract:
Form:
This specification covers two types of free-machining, corrosion
and heat-resistant steel in the form of bars, wire, forgings, and
forging stock.
Application:
These products have been used typically for parts on which the
amount of machining warrants the use of a free-machining grade of
steel, requiring corrosion resistance similar to the 18-8 type of
steel, and which will be subjected to high temperatures during
fabrication or in service, but usage is not limited to such
applications.
This steel is not intended for parts to be brazed at
temperatures higher than 1350°F (732°C), or to be fusion
welded.
Classification:
The steels covered by this specification are classified as
follows:
Type 1 18Cr - 10.5Ni - 0.26S - 0.60Cb
Type 2 18Cr - 10.5Ni - 0.14P - 0.25Se - 0.60Cb
Unless a specific type is specified, either type may be
supplied.