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1. Introduction to Hastelloy G-30 Materials
Hastelloy G-30 is a nickel-based high-temperature alloy composed of nickel, chromium, cobalt, tungsten and other elements, with a nickel content of about 37%. It is a high chromium content nickel-based alloy, which has excellent corrosion resistance than most other nickel-based and iron-based alloys for commercial phosphoric acid and mixed environments of many hyperoxidizing acid media such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid. G-30 alloy can prevent the formation of grain boundary precipitation in the welding heat-affected zone, so its welded products are suitable for various chemical treatment projects.
2. Chemical composition of Hastelloy G30
| Legierung | % | Unter | C | Cr | Fe | Mn | Und | Mo | Cu | Nb | P | S | Co | W |
| G-30 | Minimum | Marge | – | 28.5 | 13.0 | – | – | 4.0 | 1.0 | 0.30 | – | – | – | 1.5 |
| maximal | 0.03 | 31.5 | 17.0 | 1.5 | 0.8 | 6.0 | 2.4 | 1.50 | 0.04 | 0.02 | 5.0 | 4.0 |
3. Physical performance of Hastelloy G-30
| Dichte | 8,9 g/cm3 |
| Schmelzpunkt | 1350 ℃ |
Mindestwert der mechanischen Eigenschaften von Legierungen bei Raumtemperatur:
| Staat | Zugfestigkeit Rm N/mm | Streckgrenze RP0,2 N/mm | Dehnung A5 % |
| Fester Schmelzzustand | 524 | 200 | 62 |
4. Hastelloy G-30 material characteristics
For commercial phosphoric acid and mixed environments such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid, it has superior corrosion resistance than most other nickel-based and iron-based alloys.
G-30 alloy can prevent the formation of grain boundary precipitation in the welding heat-affected zone, so its welded products are suitable for various chemical treatment projects.
5. Hastelloy G-30 application field
Phosphoric acid equipment Sulfuric acid equipment Nitrate equipment
Nuclear fuel retreatment Nuclear waste treatment Pickling operation
Petrochemical products Fertilizer production Insecticides
Gold mine extraction
