As structures made of metal get smaller - as their dimensions approach the micrometer scale (millionths of a meter) or less - they get stronger. Scientists discovered this phenomenon 50 years ago ...

The proximate grade specifications of 420 stainless steels are given in the table below: (These specifications are for functionally similar materials. Original specifications can be referred to for ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

AISI 4140 is a chromium-molybdenum alloy steel. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. AISI 4140 ...

Heidtman Steel Products Inc. of Toledo, Ohio, said today it is considering locations in Indiana, Ohio and Michigan on which to build a steel processing plant. The $225 million project would have about ...