Haynes RA330 UNS N08330 alloy designed specifically for the heat treat industry

RA330 is an alloy designed specifically for the heat treat industry. To this day, RA330 outperforms the generic version made only to UNS N08330. In addition to meeting the requirements of UNS N08330, A-one Alloy has tighter chemistry restrictions and proprietary heat treatments to produce an optimum product. Even the weld wire, RA330-04, has increased levels of manganese to avoid hot cracking. When buying a heat resistant alloy, insist on quality, insist it is RA330.

RA330 alloy 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 2100°F (1148°C) are enhanced by a nominal 1.25% silicon addition. RA330 alloy finds wide application in high temperature industrial environments where good resistance to the combined effects of carburization and thermal cycling are required.  RA330 alloy remains fully austenitic at all temperatures and is not subject to embrittlement from sigma formation.

AMS 5592, AMS 5716
ASME SB 511, ASME SB 535, ASME SB 536, ASME SB 710
ASTM B 511, ASTM B 512, ASTM B 535, ASTM B 536, ASTM B 546, ASTM B 710, ASTM B 739
EN 10095
UNS N08330
Werkstoff 1.4886

Common Trade Names

Incoloy Alloy 330, Alloy 330, UNS N08330

Features

• Oxidation resistance to 2100°F (1148°C)
• Resistant to carburization and nitriding
• Resistance to thermal shock
• Good strength at elevated temperature
• Metallurgical stability

Applications

• Muffles
•  
• Corrugated Boxes
• Retorts
• Bar Baskets
• Radiant Tubes