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| Form | ASTM |
| Rod | B 581 |
| Plate, sheet and strip | B 582 |
| 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 |
Chemical composition
| % | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | P | S | Cu | Nb+Ta |
| min | balance | 28.0 | 13.0 | 4.0 | 1.5 | 1.0 | 0.30 | ||||||
| max | 31.5 | 17.0 | 6.0 | 4.0 | 5.0 | 0.030 | 1.5 | 0.80 | 0.040 | 0.020 | 2.4 | 1.50 |
Physical properties
| Density | 8.22 g/cm3 |
| Melting range | 1370-1400℃ |
Features: Hastelloy G-30 is a high chromium nickel-base alloy which has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acid as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. It resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable for use in most chemical process environments in the as-welded condition.
Applications: Chemical processing involving phosphoric acid, sulfuric acid and nitric acid; nuclear fuel reprocessing; nuclear waste processing; pickling operations; petrochemical; fertilizer manufacture; pesticide manufacture; and gold ore extraction.
Note: Hastelloy and G-30 are registered trademarks of Haynes International, Inc.