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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.
Grade | C≤ | Mn≤ | P≤ | S≤ | Si≤ | Cr | Mo | Fe | Co≤ | Cu | Nb+Ti | W | Ni |
G30 | 0.03 | 1.5 | 0.04 | 0.02 | 0.8 | 28.0--31.5 | 4.0--6.0 | 13.0-17.0 | 5.0 | 1.0--2.4 | 0.3--1.5 | 1.5--4.0 | Remainder |
Mechanical properties | Tensile, min, MPa | Yield, min, MPa | Elongation, %(min) | Metric, g/cm³ | Melting Point |
Hastelloy G30 | 586 | 241 | 30 | 8.22 | 1350--1390℃ |
STANDARD | WERKSTOFF NR. | UNS |
Hastelloy G30 | 2.4603 | N06030 |
Hastelloy G30 ASTM Specification
Pipe &Tube Welded | Pipe&Tube Seamless | Sheet/Plate | Bar /Rod | Forging /Flange | Fittings |
ASTM A619 | ASTM B622 | ASTM B582 | ASTM B581/ B472 | ASTM A462 | ASTM B366/B462 |
Hastelloy G30 Application：
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
