Brinell

I bet if I made a periodic table of turds everyone on the internet would go crazy because it's a periodic table and it's turds -- even though a Brinell hardness chart would clearly be more relevant.

Reader Makes Periodic Table Of Superheroics - Geekologie 2009

But no one likes Brinell nearly as much as they like periodic tables.

Reader Makes Periodic Table Of Superheroics - Geekologie 2009

This is the reason for the Brinell limits mentioned being specified.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

To secure proper resistance to wear a Brinell hardness of from 512 to 560 must be obtained.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

Brinell hardness of over 560 are used, danger is encountered, due to low shock-resisting properties.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

After this treatment the forgings will have a hardness of about 200 Brinell and a tensile strength of 100,000 to 112,000 lb. per square inch.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

Gears so treated will show a Brinell hardness of from 512 to 560, or a scleroscope hardness of from 72 to 80.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

This hardness varies over a range of from 250 to 500 Brinell, depending on the original forging temperature.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

No comparative tests of these chisels with those bought and treated by the old rule-of-thumb methods have been made, as no exact method of carrying out such tests mechanically, other than trying the hardness by the Brinell or scleroscope method, are known; any ordinary test depends so largely upon the dexterity of the operator.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916

Nickel steel, in addition to all the tests given to carbon steel, is subjected to a Brinell test.

The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel 1916