The petrochemical industry demands materials that are exceptionally resistant to extreme conditions, such as heat, high pressure, chemicals, and corrosive substances like chlorine. Equipment such as pipes, flanges, pressure vessels, and ovens must perform consistently in these aggressive environments. Therefore, specialized metals and alloys are often used, such as Inconel and Hastelloy (nickel alloys), zirconium, titanium, tantalum, and molybdenum. These materials are specifically designed to ensure optimal safety, durability, and reliability.