mechanical properties can be varied over a wide range a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard knife sharpener consisting of a ridged steel rod get ready for something difficult or unpleasant cover, plate, or edge with steel
American Iron and Steel Institute
AISI is comprised of producer member companies, including integrated, electric furnace, and reconstituted mills; associate member companies, which are suppliers to or customers of the industry; and affiliate member organizations, which are downstream steel producers of products such as cold rolled strip, pipe and tube, and coated sheet. http://www.steel.org/
