With a conversion table like you can see in this website :
http://www.gardco.com/pages/hardness/barcol.cfm
Wiki User
∙ 10y agoI 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.
I don't found the Mohs hardness of technetium; probable was not measured. The Brinell hardness is 112 and the Vickers hardness is 151.
Aluminum oxide, as corundum, defines 9.0 on the Mohs hardness scale.
Marble ranges from 2-5 on Moh's scale.add. There are several hardness scales other than Mohs, which is an arbitrary scale of hardness. .There is a Janka scale for wood, but be careful of the units used.There is a Rockwell scale for the Hardness of steel. This measurement leaves little mark (impression).There is a Brinell hardness scale which forces a hard steel ball into the test piece. This method leaves an impression on the test piece, but can be calibrated for steel, wood, and other metals.The Vickers Hardness test uses a diamond indenter, and is often used for hard materials such as case-hardened material.[Rockwell, Brinell, and Vickers have tables of equivalence.]And, last of all is a hardness test for paints and similar. This test, BS3900 - E19, ISO 15184, uses ordinary pencils of various hardness to determine the hardness of the paint film.
To convert Brinell hardness of 300 HB to psi, use the formula: Brinell Hardness (HB) = (12.9 * N) / (D^2), where N is the applied force in kg and D is the diameter of the indention in mm. Given 300 HB, N/A = 1250 and D = 10 for a steel ball. Converting 300 HB to psi: (12.9 * 1250) / (10^2) = 16112.5 psi. To convert 300 HB to MPa: 16112.5 psi * 0.00689476 = 111.1 MPa.
what is the difference between Shore-A Hardness & Barcol Hardness
You don't convert Shore to Barcol or reverse. They aren't directly related, that's why you can't find any references for it. Shore D is a "softness" measure and Barcol is a "hardness" measure. The best bet is to go to the manufacturer of the product and ask directly for the number you need. They can easily test the material and give you an answer, but convert one to the other...you're asking for trouble.
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
It is estimated that the Vickers hardness of promethium is 617,8 MPa.
Minimum hardness of Mild steel is about 140 Vickers hardness.
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.
No, plutonium is a dense, silvery metal at room temperature. It is classified as a heavy metal and is primarily used in nuclear reactors and weapons due to its high radioactivity.
HV = 2.9 * Y Where HV - Vickers hardness Y - Yiekd stress in KG/mm2
The Brinell hardness of technetium is 112.The Vickers hardness of technetium is 151.
Technetium is a relatively soft and malleable metal with a hardness comparable to that of silver or lead. It can be easily cut with a knife and has a low melting point, making it relatively easy to work with in a laboratory setting.
Plutonium has a metallic luster, similar to other metals. It is a relatively soft metal with a hardness of about 2.5 on the Mohs scale, making it easy to cut and shape.
http://www.gordonengland.co.uk/hardness/microhardness.htm