Hastelloy B3; Alloy B3;
HASTELLOY B-3 alloy (UNS N10675) is an excellent resistance alloy to hydrochloric acid at all concentrations and temperatures. It also withstands sulfuric, acetic, formic and phosphoric acids, and other nonoxidizing media. B-3 alloy has a special chemistry designed to achieve a level of thermal stability greatly superior to that of its predecessors, e.g. HASTELLOY B-2 alloy. B-3 alloy has excellent resistance to pitting corrosion, to stress-corrosion cracking and to knife-line and heat-affected zone attack.
Available Product Forms:
HASTELLOY B-3 alloy is available in the form of plate, sheet, strip, billet, bar, wire, pipe and tubing.
Specifications
Hastelloy B-3 is covered by the following specifications:
UNS N10675
Plate, Sheet, Strip: ASTM B333, ASME SB333,
Bar: ASTM B 335, ASME SB335, (DUAL CERTIFIED TO ASTM B564, ASME SB564 ON 3-1/2 DIA. AND UP)
Welded Pipe: ASTM B619, ASME SB619, CLASS I or II, (ABOVE 8 SCH 40) ASTM
B775, ASME SB775,
Seamless Pipe: ASTM B622, ASME SB622
Chemical Composition
Co: 2.5
Cr: 22
Mo. 13
W. 3
Fe 3
Si 0.08 Max
Mn 0.50 Max
C 0.010 Max
V 0.35 Max
