Hastelloy B-2

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Hastelloy B-2

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 can be used in the as-welded condition because it resists the formation of grain-boundary carbide precipitates in the weld heat-affected zone. hastelloy2

This nickel alloy provides excellent resistance to hydrochloric acid at all concentrations and temperatures. In additions, Hastelloy B2 has excellent resistance to pitting, stress corrosion cracking and to knife-line and heat-affected zone attack. Alloy B2 provides resistance to pure sulfuric acid and a number of non-oxidizing acids.

In what form is Hastelloy B-2 Available at Micrometals

    • Round Bar

Chemical Composition, %

Ni Mo Fe C Co Cr Mn Si
Balance 26.0-30.0 2.0 max .02 max 1.0 max 1.0 max 1.0 max .10 max
P S
.040 max .030 max

ASTM Specifications

Pipe Smls Pipe Welded Tube Smls Tube Welded Sheet/Plate Bar Forging Fitting
B622 B619 B622 B626 B333 B335 B564 B366

Mechanical Properties

Representative Tensile Properties, sheet

Product Tensile Min. (ksi) .2% Yield Min. (ksi) Elongation Min.
Rod & Bar 110 51 40
Sheet/Plate 110 51 40
Welded Pipe & Tube 110 51 40
Seamless Pipe & Tube 110 45 40