Alloy 330/Incoloy 330
Grade: Incoloy 330
Sheet/Plate: 0.3mm-150mm
Strip/Foil: 0.02mm-16mm
Pipe: 6mm*0.5mm-1200mm*100mm
Bar: Ф6mm – Ф600mm
Wire: Ф0.01mm – Ф6mm
Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.
Standard: ASTM/ASME/AMS
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Alloy 330 is a nickel-iron-chromium alloy developed for high temperature service. It combines excellent oxidation resistance, carburization resistance and thermal stability. The alloy maintains strength during prolonged exposure to elevated temperatures and is widely used in furnace and heat treatment equipment.
Chemical Composition (%)
| Element | Content |
| Ni | 34-37 |
| Cr | 17-20 |
| Fe | Balance |
| Si | 1-2 |
| Mn | ≤2 |
| C | ≤0.08 |
Common Standards
| Product Form | Standard |
| Plate/Sheet | ASTM B536 |
| Bar | ASTM B511 |
| Pipe/Tube | ASTM B515/B516 |
Mechanical Properties (Typical)
| Property | Value |
| Tensile Strength | ≥550 MPa |
| Yield Strength | ≥240 MPa |
| Elongation | ≥30% |
Application areas
- Industrial furnaces
- Heat treatment fixtures
- Petrochemical heaters
- Carburizing environments


Alloy 330 is a nickel-iron-chromium alloy developed for high temperature service. It combines excellent oxidation resistance, carburization resistance and thermal stability. The alloy maintains strength during prolonged exposure to elevated temperatures and is widely used in furnace and heat treatment equipment.
Chemical Composition (%)
| Element | Content |
| Ni | 34-37 |
| Cr | 17-20 |
| Fe | Balance |
| Si | 1-2 |
| Mn | ≤2 |
| C | ≤0.08 |
Common Standards
| Product Form | Standard |
| Plate/Sheet | ASTM B536 |
| Bar | ASTM B511 |
| Pipe/Tube | ASTM B515/B516 |
Mechanical Properties (Typical)
| Property | Value |
| Tensile Strength | ≥550 MPa |
| Yield Strength | ≥240 MPa |
| Elongation | ≥30% |
Application areas
- Industrial furnaces
- Heat treatment fixtures
- Petrochemical heaters
- Carburizing environments
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