In Vickers hardness test the for used is much lighter than the force used in Rockwell hardness test, The Rockwell hardness test is the considered to be the most routinely used technique to measure the hardness of materials because of its simplicity and because it does not require specific skills in order to perform it.
Minimum hardness of Mild steel is about 140 Vickers hardness.
Varies depending on the electroylite solution used (several). Can be hard to soft. Electroless Nickel is typically a more advanced form of (industrial) plating and the low phosphorus variety can achieve hardness's up to Rockwell "C" rated or HRC 60 which is very hard, like hardened steel. So, is it an industrial coating (electroless) or is it being plated over steel to receive a chrome finish (automobile bumper)? Typically the introduction of impurities into nickel actually makes it harder as pure nickel is quite soft and malleable. Hope this helps.
The Brinell hardness of plutonium is 242, the Vickers hardness is 255.
The Brinell hardness of technetium is 112.The Vickers hardness of technetium is 151.
The Brinell hardness of technetium is 112.The Vickers hardness of technetium is 151.
I don't found the Mohs hardness of plutonium but: - the Brinell hardness is 242 at r.m. - the Vickers hardness is 255 at r.m. After a hardness conversion chart an equivalent Mohs hardness may be 3,7.
Plutonium is a silvery metal.- Vickers hardness: 255 - Brinell hardness: 242 - Mohs hardness: cca. 3,7
Thorium is not hard: - Mohs hardness: 3 - Vickers hardness: 350 MPa - Brinell hardness: 400 MPa
I don't found the Mohs hardness of technetium; probable was not measured. The Brinell hardness is 112 and the Vickers hardness is 151.
In the common Mohs hardness scale used in geology, 10 is the maximum number, the hardness of diamond. There are several other hardness scales such as Vickers, and Brinell; but these have specialist engineering (not geologic) applications. In brief, Brinell 28 would be rather soft - about that of copper. In Vickers, this number would represent something even softer - around that of gold.
Hardness Conversion TableTensileStrength(N/mm2)Brinell Hardness(BHN)Vickers Hardness(HV)RockwellHardness(HRB)Rockwell Hardness(HRC)28586903209510056.235010511062.338511412066.741512413071.245013314075.048014315078.751015216081.754516217085.057517118087.161018119089.564019020091.567519921093.570520922095.074021923096.777022824098.180023825099.582024225523.185025226524.888026127526.490026628027.193027629028.595028029529.299529531031.0103030432032.2106031433033.3109532334034.4112533335035.5115534236036.6119035237037.7122036138038.8125537139039.8129038040040.8132039041041.8135039942042.7138540943043.6142041844044.5145542845045.3148543746046.1152044747046.9155545648047.7159546649048.4163047550049.1166548551049.8170049452050.5174050453051.1177551354051.7181052355052.3184553256053.0188054257053.6192055158054.1195556159054.7199557060055.2203058061055.7207058962056.3210559963056.8214560864057.3218061865057.8
Hardness of ductile materials can be determined by following methods..... 1) Brinell Hardness Test 2)Vickers Hardness Test 3)Rockwell Hardness Test 4) Scratch hardness test
The hardness of rhenium is 7.0 on the Mohs scale. It has a hardness of 2450 MPa on the Vickers scale and 1320 MPa on the Brinell scale.
HV = 2.9 * Y Where HV - Vickers hardness Y - Yiekd stress in KG/mm2