About Alloy
Hastelloy G30 is a highly corrosion-resistant nickel-base alloy designed for service in harsh environments involving strong oxidizing acids. Developed as an improvement over earlier Hastelloy alloys, G30 offers exceptional resistance to a wide range of chemical environments, including nitric acid, phosphoric acid, hydrochloric acid, sulfuric acid, and various mixtures thereof.
Key features of Hastelloy G30 include:
Excellent Corrosion Resistance: It provides superior resistance to both oxidizing and reducing acids, as well as resistance to localized corrosion such as pitting and crevice corrosion.
High Strength: Hastelloy G30 maintains its mechanical properties at elevated temperatures, making it suitable for applications where both corrosion resistance and structural integrity are crucial.
Fabricability: The alloy is easily formed, welded, and machined, allowing for versatile manufacturing processes and ease of maintenance.
Applications: It finds use in a wide range of industries including chemical processing, pharmaceuticals, pollution control, pulp and paper production, and other sectors where corrosive environments are prevalent.
The composition of Hastelloy G30 typically includes high levels of chromium, nickel, and molybdenum, along with additions of tungsten and cobalt, which collectively enhance its resistance to corrosion and maintain its mechanical strength in demanding conditions.
Product Form
Rod, Bar, Wire and Forgings: ASTM B462, ASTM B581, ASME SB462, ASME SB581
Plate, Sheet and Strip: ASTM B575, ASME SB575
Pipe and Tube: ASTM B619, ASTM B622, ASTM B626, ASME SB619, ASME SB622, ASME SB626
Welding Product: AWS A5.14 ERNiCrMo-11, ASME Ⅱ SFA-5.14 ERNiCrMo-11, ASME Ⅸ F-No.45
Forgings
Chemical Composition
| Alloy | C | Si | Mn | P | S | Cr | Ni | Co | Mo | W | Nb+Ta | Cu | Fe |
| Hastelloy G-30 | ≤0.03 | ≤0.80 | ≤1.50 | ≤0.04 | ≤0.03 | 28.0-31.5 | Bal | ≤5.00 | 4.0-6.0 | 1.5-4.0 | 0.3-1.5 | 1.0-2.4 | 13.0-17.0 |
Property
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HB |
| 8.14 | 1260-1343 | 690 | 321 | 50 | – |
Application
Phosphoric Acid Service
Sulfuric Acid Service
Nitric Acid Service
Nuclear Fuel Reprocessing
Nuclear Waste Processing
Pickling Operations
Petrochemicals
Fertilizer Manufacture
Pesticide Manufacture
Gold Ore Extraction
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