Form:This specification covers a precipitation hardenable ~ corrosion-resistant steel in the form of bars@ wire@ forgings@ flash welded rings@ extrusions@ and stock for forging@ flash welded rings@ or extruding. Application: Primarily for partb requiring corrosion resistance and high strength up to 600??(315?? with good ductility and strength in the transverse direction in large section sizes. Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking; ARP 1110 recommends practices to minimize such conditions.