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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 | 2.50 | 1.00 | 0.05 | 1.00 | 1.00 | 0.04 | 0.03 | 0.40 |
Product Types and Standard:
| 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 |
Physical Properties:
| Density | 9.22 g/cm3 |
| Melting range | 1370-1418℃ |
Features: Hastelloy B-3 has outstanding resistance to hydrochloric acid at all concentrations and temperatures. It also resists sulfuric, phosphoric, formic, acetic acids and other non-oxidizing media. It has excellent resistance to pitting corrosion, stress corrosion cracking, and knife line and weld heat-affected zone attack. Hastelloy B-3 has greater thermal stability than Hastelloy B-2.
Applications: Hastelloy B-3 is suitable for the applications where Hastelloy B-2 is required. Like Hastelloy B-2, Hastelloy B-3 should not be used in the presence of ferric or cupric salts as these salts may cause rapid corrosion.
