Hastelloy B2 Alloy
| Chemical Analysis | |
|---|---|
| C | Carbon 0.02 max |
| Mn | Manganese 1.00 max |
| Si | Silicon 0.10 max |
| Cr | Chromium 1.00 max |
| S | Sulfur 0.03 max |
P | Phosphorus 0.04 max |
| Co | Cobalt 1.00 max |
| Fe | Iron 2.00 max |
| Mo | Molybdenum 26.00 – 30.00 |
| Ni | Nickel balance |
General characteristics of Hastelloy B2 Alloy
This is a nickel-molybdenum alloy that is particularly suited to handling reducing acids at high concentrations and temperatures. It may be used in the as-welded condition since it is not susceptible to grain-boundary carbide precipitation following welding. The alloy should not be used in the presence of oxidizing media.
Applications
This alloy finds its main uses in the chemical manufacturing industries, particularly in the production of acetic acid, herbicides, insecticides, ethylene glycol and ethyl benzene. It is also used in the production of high-octane gasoline.
Forging
The material should be heated to around 2250ºF (1230ºC) and held for a soak time. Forging may be carried out down to around 1600ºF (870ºC).
Heat treatment
The alloy should be solution annealed at 1950ºF (1040ºC) and rapidly quenched.
Machinability
The alloy work hardens rapidly. Machines should be rigid and powerful, and the tool and workpiece should be held rigid. Tools should be maintained sharp at all times.
Weldability
This alloy may be welded by the gas-metal-arc, gas-tungsten-arc and shielded-metal-arc processes. Parts may normally be used in the as-welded condition, but a post-weld anneal will result in optimum corrosion resistance.
It should be noted that Hastelloy B3 Alloy, at 0.01 C max, has a lower tendency to carbide precipitation than does Alloy B2.
To Send a Request for Quote, please Click Here, call 973.276.5000, or fax (973) 276 – 5050
