Monel
![The Art Deco gate in the entrance hall of the Guardian Building is made from Monel metal.[1]](/uploads/202501/28/Guardianinterior4224.jpg)


Monel is a group of nickel alloys, primarily composed of nickel (up to 67%) and copper, with small amounts of iron, manganese, carbon, and silicon. Stronger than pure nickel, Monel alloys are resistant to corrosion by many agents, including rapidly flowing seawater. They can be fabricated readily by hot- and cold-working, machining, and welding.