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Hastelloy B-2 is a wrought nickel-molybdenum alloy that can be used in the as welded condition. It is highly resistant to all concentrations and temperatures of hydrochloric acid. Also resistant to stress corrosion cracking and pitting. Because of the high molybdenum content the alloy is relatively expensive. The alloy is used mainly in chemical process equipment.
See Material Properties Below
| Chemical Range |
| Element |
Minimum |
Maximum |
| Carbon (C) |
-- |
0.02 |
| Chromium (Cr) |
-- |
1.0 |
| Cobalt (Co) |
1.0 |
-- |
| Iron (Fe) |
--
|
2.0 |
| Manganese (Mn) |
-- |
1.0 |
| Molybdenum (Mo) |
26.0 |
30.0 |
| Nickel (Ni) |
Balance
|
-- |
| Phosphorus (P) |
-- |
0.040 |
| Silicon (Si) |
-- |
.10 |
| Sulphur (S) |
-- |
0.030 |
| Typical Physical Data |
| Density |
0.33 lb /in3
|
| Melting Point |
2600 ºF |
Specific Heat
|
0.093 (Btu/lb ·
ºF) |
| Coefficient of Expansion |
5.7 (70-200 ºF , 10-6
in/in · ºF) |
| Thermal Conductivity |
85 (Btu · in/ft2
· h · ºF) |
| Electrical Resistivity |
825 (ohm·circ mil/ft)
|
| Applicable Specifications |
| Rod & Bar |
ASTM B335 |
| Sheet & Plate |
ASTM B333 |
Tube & Pipe
|
ASTM B622, ASTM B619 ASTM B626 |
| Forgings |
ASTM B564 |
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