Hastelloy Alloy G30 UNS N06030 is a highly corrosion-resistant nickel-chromium-molybdenum alloy that is commonly used in the chemical processing, oil and gas, and waste treatment industries. This alloy G30 has superior resistance to both oxidizing and reducing acids, including nitric acid, sulfuric acid, phosphoric acid, hydrochloric acid, and acetic acid.
Hastelloy G30 Chemical Composition
The chemical composition of Hastelloy G30 consists of nickel, chromium, molybdenum, and iron as the major alloying elements. The percentage of each element is as follows:
Nickel (Ni): 45-50%
Chromium (Cr): 28-32%
Molybdenum (Mo): 6-8%
Iron (Fe): 2-5%
Tungsten (W): 1-4%
Cobalt (Co): 1.5-3%
Copper (Cu): 0.5-1%
Manganese (Mn): 0.5-1%
Vanadium (V): 0.35-0.75%
Silicon (Si): 0.15-0.5%
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Hastelloy G30 Material Properties
Hastelloy G30 high nickel and molybdenum content provide excellent resistance to pitting and crevice corrosion, while the high chromium content ensures resistance to oxidizing acids. The addition of other elements such as tungsten and cobalt further enhances the G30 alloy's resistance to corrosion.
In addition to its excellent corrosion resistance, UNS N06030 also possesses good mechanical properties, including high strength and toughness. This makes Hastelloy G30 an ideal choice for applications where both corrosion resistance and mechanical strength are required.
Alloy G30 Pipe Applications
- Heat exchangers, valves, pumps, piping systems and tanks
- Used in environments with high concentrations of oxidizing and reducing acids
- Nitric acid production or stainless steel pickling
- Agrochemicals, pharmaceuticals
- Manufacturing of aerospace components
