June 2015 - Major Update to SS 303 in ASMD and AHAD*

SS303/303Se: A new updated and revised chapter has replaced the previous chapter in the ASMD.

June 2015 - Four Alloys Added to HPAD and AHAD* Alloy 80A is a wrought, age-hardenable nickel-base alloy strengthened by the addition of aluminum and titanium. Alloy 80A can be readily forged, formed and welded. It was developed for service up to 1500oF and exhibits oxidation resistance up to 1000oF. Initially used for turbine blades, the alloy has found use in many other applications such as mechanical joining of high temperature parts, exhaust valves and manifolds, springs for fuel elements and nuclear applications.

Hastelloy X is a nickel-base solid solution strengthened superalloy. It has good oxidation properties and moderate strength properties up to 1600oF. The alloy has excellent welding and brazing characteristics and can be cold and hot formed satisfactorily. Typical applications are gas turbine engine combustors, bolts, afterburner components, and structural components in the combustion and turbine sections. Due to its resistance to oxidizing, reducing, carburizing and nitriding atmospheres, it is also used for industrial furnace applications and also in applications in the petrochemical industry (retorts, catalyst support grids, baffles, tubing and dryers).

Alloy 625 Plus is a precipitation-hardenable, nickel-base alloy that provides high strength levels while maintaining corrosion resistance similar to Alloy 625 and superior to Alloy 718. The alloy is suitable for applications where severe corrosion environments are a concern, as in marine, deep sour-gas gas wells and a variety of refinery and chemical process industry applications.

SS303/303Se are nonmagnetic, wrought, austenitic type 18Cr-8Ni stainless steels with S added to 303 and Se added to 303Se to improve machinability and friction and wear properties. The 303 and 303Se grades have good corrosion resistance in most media as well as excellent oxidation resistance and good creep properties at elevated temperatures and at cryogenic temperatures as well.

*Note: Since the AHAD is a combination of the ASMD and HPAD, the updates listed above also apply to the AHAD.