[nostoc]

I also don't know anyone who refers to it as wolfram, but wolfram is all over the tungsten wikipedia page.

[Maursault]

The symbol is W, which stands for Wolfram. So everyone refers to it that way, at least initially.

[CydeWeys]

That's gonna be people either in specialized areas, or non-native English speakers using their own words. I see British English spelling all over Wikipedia, for example, but I never see anyone in my actual life in the US use it except for one guy who is from, you can guess.