Nickel-Chromium-Molybdenum Alloy

Hastelloy B-2

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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 Plate/Sheet
    Thickness: 0.5mm-60mm
    Width: 500mm-2500mm
    Length: 1000mm-6000mm
  • Rod Rod
    Diameter: 6mm-400mm
    Length: 1000mm-6000mm
  • Tube Tube
    Outer Diameter: 6mm-273mm
    Wall Thickness: 0.5mm-20mm
    Length: ≤ 12000mm
  • Wire 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
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