Not really. In US English it sounds very old-fashioned and formal. It is the kind of language you see in literature up until perhaps 1910 or so. It has fallen out of fashion in the US because the Soviets called each other "tovarishch," which is customarily translated into English "comrade." As a result, the word became associated with communism. We do use the word "camaraderie" to mean the kind of close friendship of "comrades."

Salaam Mohamed. Hope you are well! Comrades usually refers to colleagues or a fellow member of an organization. Here in South Africa, many politicians use it when addressing members of their party. Depending on the country, it could be seen as improper depending on the political climate and history. If you are addressing friends, I would suggest "Hi friends, we are here to talk about ...". If it's in a work environment perhaps, " Dear colleagues, we are here to discuss ...". Hope that helps. Have a lovely day further.

If you change your name to Stalin, you probably can

To me it sounds like you are addressing fellow socialists or communists, probably in the same organisation/party when you use 'comrades'. Or it may refer to comrades-in-arms when you are in the military. I'm not sure if this is what you are going for. In German we have a term "Kameraden" that can be taken out of military or party context when a guy is addressing his male friends but that wouldn't be equal to 'comrades'... it's your pals you play football or handball with and meet to socialize with after work... so perhaps something like my best 'mates' comes closes in English?

I agree with Shama :)