‌Hastelloy alloy ‌ is a high-performance nickel-based alloy, which is widely used in many industrial fields for its excellent corrosion resistance and high temperature strength. Hastelloy alloy is produced by Hastelloy International Corporation in the United States, mainly divided into nickel-chromium alloy and nickel-chromium molybdenum alloy two categories, including a number of specific grades, such as Hastelloy C-276, Hastelloy B-2 ‌.