General Description

Hastelloy B3 is nickel-molybdenum alloy which has the same excellent resistance to hydrochloric acid and other strongly reducing chemicals as Hastelloy B2, but with significantly better thermal stability, fabricability and SCC resistance.

Hastelloy B3 has been primarily used for their resistance to corrosion in nonoxidizing environments such as HCl.But it is is not recommended for use in the presence of ferric or cupric salts because these salts can cause premature failure.

Hastelloy B3 produced by NiWire is well suited for equipment handling hydrochloric acid in all concentrations and temperatures. Resistant to hydrogen chloride gas and sulfuric, acetic, and phosphoric acids. Principal high-temperature uses are those in which a low coefficient of thermal expansion is required.

Chemical Composition

Grade Ni% Cr% Mo% Fe% C% Mn% Si% Co% S% P% Cu% Ti% Al% Nb% V%
Hastelloy B3 Min 65.0 1.0-3.0 37.0-32.0 1.0-3.0 Max 0.01 Max 1.0 Max 0.10 Max 3.0 Max 0.01 Max 0.03 Max 0.2 Max 0.2 Max 0.5 Max 0.2 Max 0.2


Grade UNS
Hastelloy B3 N10675

Physical Properties

Grade Density Melting Point
Hastelloy B3 9.22 g/cm3 1370°C-1418°C

Mechanical Properties

Grade Tensile Strength Yield Strength 0.2% Elongation
Hastelloy B3 960 MPa 417 MPa 53.4%

Our Production Standard

ASTM Bar Forging Parts Welded Tube Seamless Tube Sheet/Plate
Hastelloy B3 ASTM B335 ASTM B564 ASTM B626 ASTM B622 ASTM B333

Size Range

Hastelloy B3 bar, rod, forging, plate, sheet, tube and other standard forms are available.

Email our sales for quotation!