Hastelloy B / B-2(UNS N10665/W.Nr.2.4617)
Chemical Composition Wt.%
The minimum mechanical properties of the alloy at room temperature
Typical mechanical properties
Hastelloy B-2 is a face-centered cubic lattice structure. By controlling the iron and chromium content to a minimum, process brittleness is reduced, preventing precipitation of the Ni4Mo phase at 700-870 ° C.
Sheet, sheet, strip
1. Control of iron and chromium in the lowest content, preventing the formation of β-phase Ni4Mo.
Nickel-molybdenum alloy Hastelloy B-2 has very low carbon and low silicon content and lowers the precipitation of carbon and other impurity phases in the weld heat-affected zone, so that the weld is also sufficiently corrosion resistant. Alloy Hastelloy B-2 has good corrosion resistance in reducing media, such as hydrochloric acid solutions of various temperatures and concentrations. In the medium concentration of sulfuric acid solution (or contain a certain amount of chloride ion) also has good corrosion resistance. At the same time can also be used for acetic acid and phosphate environment. Alloy materials have the best corrosion resistance only in the proper metallurgical state and pure crystalline structure.
Hastelloy B-2 alloy has a wide range of applications in the chemical, petrochemical, energy manufacturing and pollution control areas, especially in the sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries.