http://www.matweb.com/reference/shore-hardness.aspx
A and D are two different ranges on the scale. They do not overlap. The lowest D number is harder than the highest A number. Therefore, there is no "converson factor".
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.
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.
Janka wood hardness scale - The Janka rating is a measure of the amount of force it takes to push a .444" diameter steel ball half way into a piece of wood. The speed of growth of a tree can effect the Janka rating.
D. Hardness.
the hardness vlaue of carbon very much depends on the value of the hardness of the carbon. if it is a high value then the hardness is high however if it is a low value then it is a low hardness helpful??? :D
Those numbers represent a durometer/hardness of the material on what is called a Shore scale. There is more than one Shore scale. In the case for skate wheels the A (a) scale is used. The scale ranges from 0-100. The closer to 100 the harder the material gets. Within skateboarding equipment you may find 101a. Although the scale does not go over 100, manufacturers use numbers above 100 so consumers do not get confused if they were to use another Shore scale like D. Now that you know, to answer your question 86a and 83a are 2 durometers that are pretty close together. In your hand you may not be able to feel the difference. Depending on your skill level and what you are doing, you may or may not tell the difference while skating.
shore A is used for flexible material whereas shore B is used for rigid material
Derrick Shore goes by "D".
nope
Convert d: /fs:ntfs
how much hardness of en-d
yes pauly d does smoke.