First, you need 1 iron ore and 2 coal. These can be obtained by mining them or by trading them with other players either manually or through the Grand Exchange. Next, use the coal with a furnace, and there you go! You have made a steel bar.
Do you mean iron? You need to find iron blocks, and then smelt them in the furnace, using coal, charcoal or some sort of wood.
If you meant flint and steel, it can be made very easily like this (E = Empty, I = Iron, F = Flint):
E E E
I E E
E F E
you go to a furnace and place iron ore in but you only have a 50% chance of it working
1 iron ore and 2 coal
Chromium plus iron equals steel
You use an iron ore on a furnace.
You cant make alchemy classic, its a game! Though you can download it and play it!
in alchemy classic its 2 bacteria but it might be different in the original (assuming your playing alchemy classic)
lplolol
caoutchouc
coal
Steel=metal+coal
Coal + Metal=STEEL
coal + metal = steel
freezer
ruminants+Horn
Rodents + needles
fruits+earth