That quote is false.

A method for forming the steel article having high hardness and higher toughness includes carburizing the steel at a temperature and for a period of time in an atmosphere having a carbon potential sufficient to form carbides and austenite on at least one preselected surface of the steel, and then quenching the carburized steel to a temperature below the Ar1 temperature and above the Ms temperature of the steel material for a time sufficient to transform a major portion of the austenite in the preselected surface area micro-structure to lower bainite.

The steel bar,sheet,roll now will have a equivalent Knoop 500 gram "unit of measure used in steel production" maximum particle hardness of at least 900 and a Charpy "cryo unit" that is unnotched.
A room temperature toughness of at least 50 Joules, thereby providing an article having both high hardness and toughness properties.

I know that is a lot of mumbo jumbo to most of us but it is a formula. A fact that this is not only being done,but easily and readily done.

This is only one formula for increasing steel hardness and toughness at the same time.Other simple formulas include proprietary heat and cryo treatments by various steel producers and their respective end users like Scrap Yard Knives. <img src="/ubbthreads/images/graemlins/bowdown.gif" alt="" />

It is easy to do and done by almost every major steel manufacture. <img src="/ubbthreads/images/graemlins/cool.gif" alt="" />

But I DO love the exciting debates in this thread! Had to throw in my two cents. <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />


Peace.