One possible scale used to determine the hardness of golf iron heads. Typically 1030 stainless steel has a Rockwell Hardness of B80, 18-8 steel rates B90, 431 tests at C18, while 17-4 has a hardness o [..]

Measure of resistance to penetration when material is exposed to a pointed load. The hardness numbers obtained by a Rockwell machine are related to the depth of the impression measured after the load [..]

A standard method for measuring the hardness of metals. The hardness is expressed as a number related to the depth of residual penetration of a steel ball or diamond cone (“brale”) after a minor load [..]

Another of the methods used to determine a metal’s resistance to indentation. Rockwell equipment is more widely used than the Brinell equipment and many more testers of aluminum will refer to the Rock [..]