Electric Plasma Cutter

What is the heating coil in a electric water heater made of?

the main coil that heats the water is made out of what kind of metal? Tried cutting it with a plasma cutter and it wouldn’t cut through it? This is some kind of hard @ss metal??

Could be a couple different metals; Titanium, Tantalum, Stainless Steel, Duplex Stainless Steel, Nickel Alloys, Inconel, and Niobium are a few of the metals used to make heating coils in various applications.

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