Description / Abstract:
Form
This specification covers two types of 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 use of a free-machining grade of steel
and requiring hardness within the range of 40 to 50 HRC with
corrosion resistance and oxidation resistance up to 1000 °F (538
°C), but useful at the higher temperatures only when stresses are
moderately low, but usage is not limited to such applications.
Certain design and processing procedures may cause these products
to become susceptible to stress-corrosion cracking. ARP1110
recommends practices to minimize such conditions.
Classification
The steel compositions covered by this specification are
classified as follows:
Type 1 - 13Cr - 0.26Se (0.30 - 0.40C)
Type 2 - 13Cr - 0.25S (0.30 - 0.40C)
Unless a specific type is ordered, either Type 1 or Type 2 may
be supplied.