I've seen them called "US Wartime Steel Cents," and "Steel Pennies." I remember them being called lead pennies. I've read there was more zinc than steel in them. I don't know what the official name is.
I think you're confusing the 2 materials. IIRC the 1944 issues were made from shell casings, largely zinc. The 1943 were "steel".
But then, I haven't paid attention to my coin-collecting for a long while. Could be forgetting the details.