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Hastelloy B2

Hastelloy B2 is a solid solution strengthened, nickel-molybdenum alloy, with significant resistance to reducing environments like hydrogen chloride gas, and sulfuric, acetic and phosphoric acids. Molybdenum is the primary alloying element which provides significant corrosion resistance to reducing environments. This nickel steel alloy (Hastelloy B2) can be used in the as-welded condition because it resists the formation of grain-boundary carbide precipitates in the weld heat-affected zone.


Standard Hastelloy B2
UNS N10665
Werkstoff Nr. 2.4617

Mechanical & Physical Properties

Density 9.2 g/cm3
Melting Point 1370 °C (2500 °F )
Tensile Strength Psi-1,10,000 ,MPa-760
Yield Strength (0.2%Offset) Psi-51000 ,MPa-350
Elongation 40 %

Chemical Composition

  Hastelloy B2
Ni Bal
Mo 26-30
Fe 2.0 max
C 0.02 max
Co 1.0 max
Cr 1.0 max
Mn 1.0 max
Si 0.1 max
P 0.04 max
S 0.03 max


Petrochemical Industry
Chemical Industry
Fabrication Industry

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