EMT Galv.??

[mstrlucky74]

Being told that EMT is a galvanized. Is that true?

 

[roger]

Yes

Roger

 

[kwired]

358.2 Definition.
Electrical Metallic Tubing (EMT).
An unthreaded thinwall raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed utilizing appropriate fittings. EMT is generally made of steel (ferrous) with protective coatings or aluminum (nonferrous).

Protective coatings on ferrous EMT is typically zinc. It is the only kind of EMT most of us have ever seen as well, though by definition others may exist.

 

[mstrlucky74]

Protective coatings on ferrous EMT is typically zinc. It is the only kind of EMT most of us have ever seen as well, though by definition others may exist.

YEs I was aware of the zinc on EMT ...so is that galvanized?

 

[mgookin]

Electro-galvanized (EG) at that, whereas RMC is hot-dipped galvanized.

 

[kwired]

YEs I was aware of the zinc on EMT ...so is that galvanized?

I don't know a lot about "galvanizing" but zinc is the primary component involved.

 

[mgookin]

I don't know a lot about "galvanizing" but zinc is the primary component involved.

Electrogalvanizing is when the zinc coating is applied via electroplating.

Hot dipped is when it's drenched in a bath of hot molten zinc. Hot dipped is much thicker and gives greater protection.

 

[Dennis Alwon]

So both emt and rmc are made of the same materials just perhaps thicker in rmc and coated differently

 

[mgookin]

So both emt and rmc are made of the same materials just perhaps thicker in rmc and coated differently

For the most part, yes. There can be slight differences in alloys though.