Q1: What is Hastelloy C276 foil and strip made of, and what are its key features?
A1: Hastelloy C276 (UNS N10276) is a nickel-molybdenum-chromium alloy with tungsten. It provides exceptional corrosion resistance, especially against strong oxidizers, reducing agents, and pitting or stress corrosion cracking in harsh chemical environments.
Q2: What are the main applications of Hastelloy C276 foil and strip?
A2: They are widely used in chemical processing equipment, pollution control, pulp and paper production, marine engineering, and flue gas scrubbers, where strong resistance to aggressive chemicals and extreme environments is essential.
Q3: How does Hastelloy C276 perform compared with other nickel alloys?
A3: Hastelloy C276 surpasses many nickel-based alloys in corrosion resistance, particularly in wet chlorine gas, hydrochloric acid, sulfuric acid, and seawater environments. It is often chosen where other alloys, including stainless steels, fail prematurely.
Q4: What are the mechanical properties of Hastelloy C276 foil and strip?
A4: The alloy provides high tensile strength, excellent ductility, and good toughness. For instance, it has a tensile strength around 760 MPa at room temperature, with strong resistance maintained even under elevated temperatures and pressure.
Q5: What standards, thicknesses, and forms are available?
A5: Hastelloy C276 foils and strips are produced according to ASTM B575 and equivalent standards. They are available in various thicknesses (typically 0.01 mm to 3.0 mm) and can be delivered in coils or cut-to-length strips to meet customer requirements.
