Metals - Stuff about metal

My search - what is metal 798? - steel starts with a number 1 to 5 - so...

History of Metals

http://en.wikipedia.org/wiki/Category:History_of_metallurgy

Metal Glossary:

https://www.metaltek.com/resources/library/glossary

Steel grades:

http://en.wikipedia.org/wiki/SAE_steel_grades

Some steel types:

http://www.hudsontoolsteel.com/technical-data

Steel classifications:

http://www.thefabricator.com/article/metalsmaterials/carbon-content-steel-classifications-and-alloy-steels


Iron Based Metallurgy

http://en.wikipedia.org/wiki/Ferrous_metallurgy

Metal and Metallurgy engineering Forum at Eng-Tips