For the vast majority of human history, only a few metals, including iron, copper, tin, and lead, were in common uses. These metals of antiquity are those that are typically found in relatively high concentrations of one-half weight percent or …
When comparing steel standards from different national and international standard development organizations, there is no such thing as equivalent steel standards. At best, one may be able to group comparable steel standards together based on some defined set of rules. …
