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.