Nope, no metals through portals
However there are mods that fix that.

Or you can do the log out, log into different world, put metal in chest, log back into main world, go through portal, log back into different world, take metal out of chest, log back into main world. Tada, metal through portal.
Now, is that tedious? Yes. But ask yourself this, would you rather log out/in like 4 times or sail across half the world?