Hastelloy B2 Characteristic Properties and application notes
Alloy B2,Hastelloy B2,UNS N10665, W.Nr. 2.4617 Wire 20m*0.5mm
Hastelloy B2 Properties and Notes:
Hastelloy B2 / UNS N10665/ W.Nr. 2.4617 is a solid solution strengthened, nickel-molybdenum alloy, typically used in extreme reducing conditions. B2 has significantly low carbon, silicon and iron compared to its' predecessor, Alloy B(UNS N10001), making the alloy less susceptible to decreased corrosion resistance in the weld zone, in the as-welded condition. Controlling other alloying elements such as iron and chromium solved other issues concerning fabricability. Stringent chemistry control along with years of development has resulted in the alloy used now, both in alloy B2 and alloy B3. now, alloy B2 with restricted chemistry can be used in the welded condition and is less susceptible to SCC under many conditions. As always, care must taken in selecting the right alloy for the desired application.
Hastelloy B2 should not be used at temperatures between 1000℉ and 1600℉ as the alloy forms secondary phases that could decrease the ductility of the material.
