American Bureau of Metal Statistics Inc—–
American Welding Society—–
ASM International—–
Conversion Calculator—–
CRU Steel Price Indicator —-
Engineers Edge—–
Job Shop Technology Magazine—–
Material Handling Industry of America—–
Matweb Material Property Data —–
National Center for Excellence in Metalworking Technology—–
National Institute of Standards and Technology—–
Sheet Metal Definitions and Terms —-