Equivalent designations
UNS N10665
DIN W. Nr. 2.4617
Introduction:
Stock Forms: Hollow bar,Round bar, Flat Bar, Hex Bar, Ring, Forgings. Pipes
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.