Hardness of Hastelloy Alloy

HRC 20-40 (specific value depends on the processing state)
The hardness of Hastelloy Alloy varies depending on the specific model and processing state (such as annealing or cold working). The following is the hardness analysis of two common Hastelloy Alloys:

‌C-276 Hastelloy Alloy‌

‌Annealed state‌: hardness is about HRC 20-25, and toughness is improved by heating to 760-870℃ and then slowly cooling.
‌After solution treatment‌: hardness is HRC 28-32, with both wear resistance and stability.
‌After cold working‌: hardness can be increased to HRC 36-40, significantly enhancing mechanical strength and wear resistance.
The alloy is mainly composed of nickel-molybdenum-chromium, with a density of 8.90g/cm³ and an elastic modulus of 205GPa, suitable for harsh corrosive environments.
‌Hastelloy X (UNS N06002)‌

‌Annealed hardness‌: HB 241 (about HRC 22), still maintains oxidation resistance at high temperature (1200℃).
Its chemical composition is mainly nickel-chromium-iron-molybdenum, with a density of 8.22g/cm³, suitable for long-term high temperature environment below 900℃.
‌Summary‌: Hastelloy alloy has a wide hardness range, and the model and treatment process need to be selected according to the specific application. C-276 focuses more on corrosion resistance and cold working strengthening, while Hastelloy X focuses on high temperature performance.