It has weight around 19 grams. Diameter is 32mm. I guess it is made of copper, bronze, ...?
I'm adding pictures of my coin and 2 that I found similar.









AUGUSTUS AE as. Dated series, Rome mint, 11-12 AD. Legend around large SC. Attractive.
Dupondius - Augustus S C
IssuerRoman Empire (Rome)
EmperorTiberius (14-37)