7. Stainless Steel: Harry Brearley, 1913
The steel industry does a whole lot more for society that many of notice. For instance, have a look around your bathroom or kitchen. Head to a local cafe or shopping centre. There is stainless steel all around you, blending into the background. Harry Brearley truly reaped the benefits of stainless steel back in the day. In 1913 he invented a steel that was 12.8% chromium and 0.24% carbon which was arguably the first ever stainless steel produced.