| 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.
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