Nickel-Chromium-Molybdenum Alloy
Hastelloy C-4
Hastelloy C-4 is an austenitic, low-carbon nickel-molybdenum-chromium alloy that exhibits excellent stability at temperatures ranging from 650°C to 1040°C. This composition enhances its resistance to intergranular corrosion, ensuring superior performance in harsh environments. Under appropriate manufacturing conditions, it can effectively prevent blade line corrosion sensitivity and weld heat-affected zone corrosion.
Applications
- Flue gas desulfurization systems
- Pickling and acid regeneration plants
- Acetic acid and agricultural chemicals production
- Titanium dioxide production (chlorination process)
- Electrolytic plating
Specifications
Plate/Sheet
- Thickness: 0.5mm-60mm
- Width: 500mm-2500mm
- Length: 1000mm-6000mm
Rod
- Diameter: 6mm-400mm
- Length: 1000mm-6000mm
Tube
- Outer Diameter: 6mm-273mm
- Wall Thickness: 0.5mm-20mm
- Length: ≤ 12000mm
Wire
- Diameter: 0.1mm-10mm
- Delivery Forms: Coiled wire or straight wire
Chemical Composition
| Min. | Max. | |
| Nickel (Ni) | Rest | Rest |
| Chromium (Cr) | 14 | 18 |
| Molybdenum (Mo) | 14 | 17 |
| Iron (Fe) | 3 | |
| Cobalt (Co) | 2 | |
| Carbon (C) | 0.015 | |
| Manganese (Mn) | 1 | |
| Silicon (Si) | 0.08 | |
| Phosphorus (P) | 0.04 | |
| Sulfur (S) | 0.03 | |
| Titanium (Ti) | 0.7 |
Physical & Mechanical Properties
| Grades | Density (g/cm³) | Melting Point (°C) |
| C-4 | 8.64 | 1350-1380°C |