Incoloy 330 is a steel alloy that is high in nickel and chromium. It provides good resistance to carburization, oxidation, and nitridation. RA 330 is also easily welded using all conventional processes; it can be formed hot (between 1750-1200° F) and cold.
Available Forms of Incoloy 330 at Rooplaxmi Steels:
• Bar
• Sheet
• Plate
• Pipe & Tube (welded and seamless)
• Pipe Fittings
• Wire
Characteristics of Incoloy 330:
• Carburization resistant
• Good nitridation resistance
• Resists heat & oxidation
• Corrosion resistant
• Good strength
Incoloy 330 Chemical Composition, %:
Cr |
Ni |
C |
Mn |
P |
S |
Si |
Mo |
17.0-22.0 |
34.0-37.0 |
0.08 max |
2.00 max |
0.03 max |
0.03 max |
0.75-1.50 |
1.00-1.75 |
Cu |
Ti |
Fe |
Sn |
Pb |
1.00 max |
1.90-2.30 |
Balance |
0.025 |
0.005 max |
Application of Incoloy 330:
• Industrial heating furnaces
• Petrochemical furnace parts
• Perlite systems and equipment
• Boiler fixtures
• Gas turbine components
• Heat-treat furnace containers
• High temperature fans
• Salt pots
Machining and Fabrication with Incoloy 330:
Incoloy 330 is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly. Alloy 330’s rate of work hardening is comparable to austenitic stainless steels.
Incoloy 330 can be welded using conventional welding processes.
Incoloy 330 ASTM Specification:
Pipe Smls |
Pipe |
Tube |
Sheet / Plate |
Bar |
B535 |
B546, B710 |
B739 |
B536 |
B511, B512 |
Welding Wire Designations:
AWS A5.14 – ER330
Mechanical Properties of Incoloy 330:
At Room Temperature
Product form |
Condition |
Ultimate Tensile Strength (ksi) |
0.2 % Yield (ksi) |
Elongation (%) |
Bar |
Hot Finished and Annealed |
80-90 |
35-45 |
38-45 |
Plate |
Hot Rolled |
80-85 |
30-43 |
40-45 |
Sheet |
Cold Rolled |
80-90 |
32-42 |
35-45 |