Hastelloy® G-30 is an improved version of nickel-chromium-iron-molybdenum-copper alloy G-3. With higher chromium, added cobalt and tungsten, the G-30 shows superior corrosion resistance over most other nickel and iron based alloys in commercial phosphoric acids as well as complex environments containing highly oxidizing acids. The resistance of the alloy to the formation of grain boundary precipitates in the heat-affected zone makes it suitable for use in most chemical process applications in the as-welded condition.
Hastelloy G30 Chemical Composition| Alloy | % | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | P | S | Cu | Nb+Ta |
| Hastelloy G30 | Min | balance | 28 | 13 | 4 | 1.5 | 1 | 0.3 | ||||||
| Max | 31.5 | 17 | 6 | 4 | 5 | 0.03 | 1.5 | 0.8 | 0.04 | 0.02 | 2.4 | 1.5 |
| Density | 8.22 g/cm³ |
| Melting point | 1370-1400 ℃ |
| Status |
Tensile strength Rm N/mm² |
Yield strength Rp 0. 2N/mm² |
Elongation As % |
Brinell hardness HB |
| Solution treatment | 586 | 241 | 30 | - |
| Sheet | Strip | Rod | Pipe |
| ASTM B582 | ASTM B581 ASTMSB 472 | ASTM B622,ASTM B619,ASTM B775,ASTM B626,ASTM B751,ASTM B366 | |
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm,Used for bolts,fastners and other spare parts
Supply in welding wire and spring wire in coil form and cut length.
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Standards size and customized dimension can be produced by us with small tolerance
Soft condition and hard condition with AB bright surface, width up to 1000mm
Hastelloy G30 materials in forms of Bolts,screws,flanges and other fasterners, according to clients specification.
Hastelloy G-30 offers superior corrosion resistance to commercial phosphoric acid and many complex environments containing strong oxidizing acids such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid.
It can prevent the formation of grain boundary precipitation in the welding heat affected zone, so that it can adapt to many kinds of chemical working conditions in the welding state.
• Phosphoric acid equipment • Pickling operations
• Sulphuric acid equipment • Petrochemical products
• Nitric acid equipment • Fertilizer production
• Nuclear fuel reprocessing • Pesticide production
• Nuclear waste disposal • Gold extraction