A material that can be used in [[Electric Arc Furnaces (EAF)]] Take iron ore, crush it, then blend it with elements that keep in the shape of a pellets with gas (hydrogen, CO and ) Not melting, all happening in the solid state You have better control on chemical composition Make extremely clean steel You don't have residual elements that can be bad like tin and copper that can cause imbrittlement. Steel is the fabric of life Directional Arrow of Steel - Tensile Strength of Steel 30 years ago was 300 Mega Pascal - This year we have 2000 Mega Pascal To get the same performance, you don't need the same thickness.