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 | 27.0-32.0 | 1.0-3.0 | Max 0.01 | Max 1.0 | Max 0.1 | Max 3.0 | Max 0.01 | Max 0.03 | Max 0.2 | Max 0.2 | Max 0.5 | Max 0.2 | Max 0.2 |
Designations
UNS N10675
Specifications
Hastelloy B3 Bar: ASTM B335
Hastelloy B3 Forgings: ASTM B564
Hastelloy B3 Welded Tube: ASTM B626
Hastelloy B3 Seamless Tube: ASTM B622
Hastelloy B3 Sheet/Plate: ASTM B333
Physical Properties
Density：9.22 g/cm3
Melting Point: 1370°C-1418°C
Mechanical Properties
Tensile: Min 960 MPa
Yiled: Min 417 MPa
Elongation: Min 53%