Form:

This specification covers a premium aircraft-quality, corrosion-resistant steel in the form of sheet, strip, and plate.

Application:

These products have been used typically for parts requiring corrosion resistance approximating that of 18-8 type steels and strength exceeding that of 12Cr martensitic-type steels up to 700 °F (371 °C), but usage is not limited to such applications. This steel can be used in the solution heat treated condition and can be precipitation heat treated to tensile strengths as high as 180 ksi (1241 MPa).

This steel is relatively immune to stress-corrosion cracking; however, reference should be made to ARP1110 for recommended practices to minimize such conditions.