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Hastelloy B alloy

Designation:Hastelloy B alloy
Products Category:Hastelloy Series
Products description:
Equivalent designations
Equivalent designations
UNS N10001
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


Chemical composition

% Ni Mo Fe Co Cr C Mn Si P S V
min balance 26.0 4.0

0.20
max 30.0 6.0 2.5 1.00 0.050 1.00 1.00 0.040 0.030 0.40


Physical properties

Density 9.24 g/cm3
Melting range 1330-1380℃


Features: Hastelloy B has excellent resistance to reducing environments like sulfuric acid at moderate concentrations and other nonoxidizing acids. It also resists stress corrosion cracking induced by chlorides. Hastelloy B 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.