Hastelloy B-2• • Trade name of Haynes International
W.NR 2.4617
UNS N10665
AWS 050
UNS N10665
AWS 050
Hastelloy B-2 is a Nickel base wrought alloy with
excellent resistance to
hydrochloric acid at all concentrations and temperatures.
B-2 also
withstands hydrogen chloride, sulphuric, hydrofluoric,
acetic and reagent grade phosphoric acids. This alloy also
has excellent resistance to stress corrosion cracking and to
knife line and heat affected zone attack.
Hastelloy B-2 is not recommended in the presence of ferric
or cupric salts.
Applications include:
- Chemical Processing
| Approximate Chemical Composition | |
| Ni | 69% |
| Mo | 28% |
| Fe | 2% max |
| Cr | 1% max |
| Co | 1% max |
| DENSITY | 9.22 g/cm3 | 0.333 lb/in3 |
| MELTING POINT | 1370oC | 2500oF |
| COEFFICIENT OF EXPANSION | 10.3 µm/m °C ( 20 - 100°C) |
5.7 x 10-6 in/in
°F ( 70 - 212°F) |
| MODULUS OF RIGIDITY | 84 kN/m2 | 12183 ksi |
| MODULUS OF ELASTICITY | 217 kN/m2 | 31474 ksi |
| CONDITION OF SUPPLY | HEAT TREATMENT (AFTER FORMING) |
| Annealed/Spring Temper | Stress relieve at 400oC - 450oC (750oF - 840oF) for 2 hours and air cool. |
| CONDITION |
APPROX TENSILE STRENGTH |
APPROX SERVICE TEMPERATURE |
||||
| Annealed | 900-1100 N/mm2 | 131-159 ksi | -200o to +400oC | -330o to +750oF | ||
| Spring Temper | 1400-1900 N/mm2 | 203-276 ksi | -200o to +400oC | -330o to +750oF | ||
| STANDARDS | |
| ASTM B335 | ASTM B619 |
