Nickel alloy INCOLOY® 330 – properties, applications and technical data
INCOLOY Alloy 330 is an austenitic nickel-iron-chromium alloy with good high-temperature strength and very good corrosion and oxidation resistance.
The alloy is developed for use in high-temperature environments where the material is exposed to oxidation, carburization and prolonged heat exposure.
The high levels of nickel and chromium provide very good resistance to oxidation and carburization, while silicon contributes to improved oxidation resistance.
Properties of INCOLOY Alloy 330
INCOLOY Alloy 330 is a solid solution-hardened austenitic alloy that cannot be hardened by heat treatment.
The material offers good strength and structural stability at elevated temperatures, making it well suited for industrial heating furnaces and other high-temperature applications.
- Type: austenitic nickel-iron-chromium alloy
- Alloy: Ni-Fe-Cr-Si
- Structure: austenitic alloy
- Designations: INCOLOY Alloy 330, Alloy 330, UNS N08330, Werkstoff 1.4886
- Typical composition: Ni ~34–37%, Cr ~17–20%, Si ~1–1.5%, Fe ~balance
Advantages
- Good oxidation resistance at high temperatures
- Good resistance to carburization
- Good strength at elevated temperatures
- Stable austenitic structure
- Suitable for long-term operation in heating furnaces and process equipment
Limitations
- Not hardenable by heat treatment
- Higher material cost than standard stainless steels
- Not intended for applications where maximum mechanical strength is more important than heat resistance
Common product forms for Alloy 330
- Round bar
- Sheet and strip
- Tubes and pipes
- Forgings
- Special dimensions according to drawing
Typical components manufactured in Alloy 330
- Industrial Furnaces
- Muffles
- Retorts
- Conveyor Systems
- Heat Treatment Baskets and Boxes
- High Temperature Process Fixtures
Corrosion and Oxidation Resistance
INCOLOY Alloy 330 offers very good resistance to oxidation and carburization at high temperatures.
The material is often used where prolonged exposure to hot process gases and heat would otherwise cause rapid material degradation.
Environments Where Alloy 330 Performs Well
- Heat Treatment Furnaces
- Carburizing Atmospheres
- Oxidizing high temperature environments
- Industrial process furnaces
Environments to avoid
- Applications where simpler heat-resistant materials are sufficient
- Environments where very high mechanical strength is required at lower temperatures
Technical data
| Yield strength (0.2%) |
~240 MPa |
| Tensile strength |
~550 MPa |
| Elongation |
~35 % |
| Density |
~7.9 g/cm³ |
| Modulus of Elasticity |
~200 GPa |
| Maximum recommended temperature |
Up to approximately 1100 °C depending on application |
With a global network of suppliers, we can offer INCOLOY Alloy 330 in technical dimensions for demanding industrial and high-temperature applications.
Contact us for price, availability and technical advice.
Supplier of Alloy 330 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys and advanced high-temperature materials, including heat-resistant alloys such as INCOLOY Alloy 330.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Special alloys from stock
- ASTM / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
