A common hardness test done with a round, very hard steel ball which is pressed into the material being tested. The diameter of the mark left in the steel is measured and a table is used to convert this to a Brinell Hardness Number. The higher the number, the harder the steel. See hardness testing.
Altec Automates for Increased Productivity with Prima Power
“I have never had a machine perform as well as the Prima Power Shear Genius. And when you take the reliability of the SG into consideration, there is no comparison.” Jeff Mooney, Altec Body Mfg.
Dropping oil prices and metal fabricating - by Dan Davis The drop in oil prices is not the end of the world, and it won't be the end of the world for the metal fabrication industry--at least for those not located in Texas, North Dakota, and western Canada.
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