Rockwell 30-T scale measures superficial hardness … … Comments: 0 The Rockwell hardness test is used to test the hardness of materials. Steel C Scale 150 kgf D Scale 100 kgf A Scale 60 kgf 15N Scale 15 kgf 30N Scale 30 kgf 45N Scale 45 kgf 3000 kgf Hardness 10 kgf 500 gf & over Equiv. The Rockwell Scale is used to determine the hardness of a material, and part C specifically refers to steel. 1000 lb sq in Rockwell C Hardness Conversion Diamond Penetrator Diamond Penetrator Rockwell Superficial Rockwell … The Rockwell test is usually performed on metals ranging from thin steal all the way to harder metals like Titanium. The hardness of a steel is determined by the heat treatment of the blade. ROCKWELL SUPERFICIAL ROCKWELL BRINELL VICKERS OR FIRTH DIAMOND HARDNESS NUMBER SCLERO- SCOPE TENSILE STRENGTH; 10 m/m Ball: Diamond Brale: 1/16" Bull "N" Brale Penetrater: 3000 kgm Load: 150 kgm C Scale: 60 kgm A Scale: 100 kgm D Scale: 100 kgm B Scale: 15 kg Load 15 N: 30 kg Load 30N: 45 kg Load 45N: Diam. The tensile strength of Brinell and Rockwell hardness can be measured using steel hardness conversion table. However, one steel … Tensile Strength = the amount of pull on the metal when it breaks. 1.5 1.4 1.3 1.1 1.1 1.2 1.1 1.1 % Elongation = the percent change in length when the material is pulled/stretched and broken into two pieces. The Brinell and Rockwell conversion table is the difference between the mild load to the major load applied on the surface of the material for a period of time. In simple terms, the higher the number, the harder the steel.