25
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.
what is the difference between Shore-A Hardness & Barcol Hardness
http://www.matweb.com/reference/shore-hardness.aspx
I understand that Asker C is a measurement of hardness for soft rubber. Its also based on a JIS K7312 standard. But How can I compare how this method of measurement correspond to ASTM D2240 Shore A standard ? i.e. If a material is Asker C 30points, how many is it on a Shore A point system?
yes
Base hardness of rubber is around 40 shore A
With a conversion table like you can see in this website : http://www.gardco.com/pages/hardness/barcol.cfm
It's the hardness of the material shore a is softer/more elastic. Shore D is harder/stiffer. Then there is a number rating, the higher the number the harder the material.
You can't. It's a different test method.
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
The Mohs scale of mineral hardness is named after Friedrich Mohs, who developed it. The Rockwell scale of metal hardness is named after Hugh and Stanley Rockwell, who created the machine that measures it. Hugh and Stanley Rockwell aren't directly related to each other. The Shore Durometer scale for measuring the hardness of elastomeric materials like rubber is named after Albert Shore, who invented the measuring device called the durometer.
Only a hard outer surface. Whatever the piece is less difficult to penetrate.