Nickel-Chromium-Molybdenum Alloy
Hastelloy B-2
Hastelloy B-2 is a versatile corrosion-resistant alloy known for its exceptional resistance to both oxidative and reductive environments. It offers outstanding protection against uniform corrosion in a wide range of acids, particularly hydrochloric acid, sulfuric acid, and hydrofluoric acid, across various temperature ranges. It also resists pitting, crevice corrosion, and stress corrosion cracking in chloride and halide solutions.
Applications
- Reactors, heat exchangers, and towers in the chemical industry
- Pharmaceutical reactors and dryers
- Components in flue gas desulfurization systems
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 |
| Molybdenum (Mo) | 26 | 30 |
| Iron (Fe) | 2 | |
| Chromium (Cr) | 1 | |
| Cobalt (Co) | 1 | |
| Carbon (C) | 0.02 | |
| Manganese (Mn) | 1 | |
| Vanadium (V) | 0.2 | 0.4 |
| Silicon (Si) | 0.1 | |
| Phosphorus (P) | 0.04 | |
| Sulfur (S) | 0.03 |
Physical & Mechanical Properties
| Grades | Density (g/cm³) | Melting Point (°C) |
| B-2 | 9.2 | 1330-1380°C |
Minimum mechanical properties of the alloy at room temperature
| Surface Condition | Solid Solution Strengthened |
| Tensile Strength (Rm N/mm²) | 745 |
| Yield Strength (Rp 0.2N/mm²) | 325 |
| Elongation at Break A5 (%) | 40 |
| Brinell Hardness (HB) | ≥250 |