Incoloy 330 Round Bar (UNS N08330 / W.Nr. 1.4886)
Incoloy 330 Round Bar is a nickel–iron–chromium alloy specifically designed for excellent resistance to high-temperature oxidation, carburization, and thermal shock. With high nickel and chromium content, it performs reliably in prolonged service at elevated temperatures, making it ideal for heat-treating, furnace, and petrochemical applications.
Key Features
- Outstanding resistance to oxidation and carburization
- Excellent thermal shock and thermal cycling resistance
- Good strength at elevated temperatures
- Stable austenitic structure
- Good weldability and fabrication properties
- Reliable performance in severe furnace atmospheres
Equivalent Grades
| Standard | Equivalent |
|---|---|
| UNS | N08330 |
| DIN / EN | 1.4886 |
| ASTM | Incoloy 330 |
Sizes
- Diameter: 6 mm to 350 mm
- Length: Random, Cut Length, or as per customer requirement
Incoloy 330 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 34.0 – 37.0 |
| Chromium (Cr) | 17.0 – 20.0 |
| Iron (Fe) | Balance |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.5 |
UNS N08330 Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 550 MPa |
| Yield Strength (0.2%) | ≥ 240 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 90 HRB |
Alloy 330 Physical Properties
| Property | Value |
|---|---|
| Density | 7.9 g/cm³ |
| Melting Range | 1350 – 1400 °C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 11.5 W/m·K |
Types of Incoloy 330 Round Bar
- Hot Rolled Round Bar
- Cold Drawn Round Bar
- Forged Round Bar
- Precision Machined Bar
Applications
- Furnace fixtures and retorts
- Heat-treating equipment
- Petrochemical processing units
- Radiant tubes and muffles
- Thermal processing components
- Industrial heating systems
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