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

Sizes and Availability:
330 is available from stock in a greater variety of items and product forms than any other heat resisting alloy composition. Refer to current stock list for details. special shapes, sizes or quantities may be mill produced promptly.

Welding:
330 is readily welded using 330-04 weld fillers of matching composition. 330-04DO lime type electrodes are available from stock in popular sizes. 330-04 bare welding wire is available in straight length for GTA welding or spooled for GMA welding.
For best results, do not preheat, keep interpass temperature low and use reinforced bead contours.