RA330 is an austenitic heat and corrosion resisting alloy offering an exceptional combination of strength and resistance to carburization, oxidation and thermal shock. Carburization and oxidation resistance to 2200°F are enhanced by a nominal 1.25% silicon addition. RA330 finds wide applications in high temperature industrial environments where good resistance to the combined effects of carburization and thermal cycling is a prime requisite. RA 330 remains fully austenitic at all temperatures and is not subject to embrittlement from sigma formation.