HuaNickel Hastelloy C-4 superalloy is a metal material with iron, nickel and cobalt as the main components, which can work for a long time at high temperatures above 600°C and certain stress. It has high high temperature strength, good oxidation and corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. Superalloys are single austenitic structures with good structural stability and reliability at various temperatures. Based on the above properties and high alloying degree, superalloys are also known as “superalloys” and are widely used in aviation, aerospace, petroleum, chemical industry, shipbuilding and other fields. According to the matrix elements, superalloys can be divided into iron-based, nickel-based, and cobalt-based superalloys.

Hastelloy G

HuaNickel Hastelloy G-30 alloy is developed on the basis of 00Cr22Ni48Mo7Cu2Nb alloy by increasing the chromium content to 30%, reducing molybdenum and adding an appropriate amount of tungsten. Due to the high chromium content, the main corrosion resistance of this alloy is that the performance of H₃PO₄ containing Cl- and F- is significantly better than that of 00Cr22Ni48Mo7Cu2Nb alloy. It also has excellent corrosion resistance in nitric acid + hydrofluoric acid, sulfuric acid + hydrofluoric acid. The alloy can be used in evaporators in the wet phosphoric acid industry, as well as in acid mixing equipment and components for pickling stainless steel HNO₃+HF. This alloy can also be used in corrosion-resistant equipment in the production of nuclear fuel.

Hastelloy G-35