Is steel renewable?
no its not
The simple answer to this question is: No. But, you could argue that you can technically create new steel with a particle accelerator and a lot of time. You could also argue that recycling counts as renewing. Other than those two arguments, the simple answer is no, because there is a limited supply of steel in the world.
Metal, like iron, steel and aluminum is a non-renewable resource because it take millions of years to be produced and the world doesn't have an endless supply. The world will run out if metal isn't recycled and that's why there is an increase in the business of recycling metals across the world. So metal is a non-renewable resource.
Renewable energy can't run out. Non-renewable energy WILL run out. Renewable energy is produced at a constant rate, non-renewable is not. Renewable energy is free when the generator is built, non-renewable is not. Renewable energy does not cause pollution (with the exception of biofuels), non-renewable energy does.