Metallic and Non-Metallic Conduit

[dasarmin]

Is RMC always considered "Metallic"?
I believe EMT can be steel or aluminum, so this could be called "Metallic" or "Non-Metallic"?

 

[JDBrown]

RMC is Rigid Metal Conduit. EMT is Electrical Metallic Tubing. Aluminum and steel are both metals. Perhaps you're thinking of ferrous vs. nonferrous?

 

[kingpb]

RMC can be steel or aluminum. (Always metal) Refer to Article 344.

EMT can also be steel or aluminum, however I can't say I have ever seen aluminum EMT. (Always metal) Refer to Article 358.

 

[infinity]

RMC can also be brass.

 

[petersonra]

RMC can also be brass.

I have seen it in stainless too.