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  • Hastelloy B-2 sheet/bar/pipe
  • Hastelloy B-2 sheet/bar/pipe

Hastelloy B-2 sheet/bar/pipe

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Specification, Chemical & Mechanical Performance

Equivalent designations
UNS N10665
DIN W. Nr. 2.4617
Form ASTM
Rod B 335
Plate, sheet and strip B 333, B 906
Seamless pipe and tube B 622
Welded pipe B 619, B 775
Welded tube B 626, B 751
Welding fitting B 366
Forged or rolled pipe flange and forged fitting B 462
Billet and bar for reforging B 472
Forging B 564


Chemical composition

% Ni Mo Fe Cr Co C Mn Si P S
min balance 26.0                
max 30.0 2.0 1.00 1.00 0.020 1.00 0.10 0.040 0.030


Physical properties

Density 9.22 g/cm3
Melting range 1330-1380℃

Features: Hastelloy B-2 has outstanding resistance to hydrochloric acid at all concentrations and temperatures. It also has significant resistance to reducing environments like sulfuric, phosphoric, acetic acids and other nonoxidizing media. Hastelloy B-2 has excellent resistance to pitting corrosion, stress corrosion cracking, and knife line and weld heat-affected zone attack. Hastelloy B-2 has poor resistance to oxidizing environments, therefore, it should not be used where ferric or cupric salts are present as these salts may cause rapid corrosion failure.

Applications: Equipment handling reducing chemical environments; and chemical process industry involving hydrochloric, sulfuric, phosphoric and acetic acids.

Note: Hastelloy is a registered trademark of Haynes International, Inc.
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