Rubber Black Equihardness Conversion Table

ASIA PACIFIC CROSS TABLE

REGAL 300 - ASTM N326

 SPHERON 5000
 SPHERON 6000
 STERLING NS - ASTM N774
 STERLING NS-1 - ASTM N762
 STERLING SO - ASTM N550
 STERLING V - ASTM N660
 VULCAN 3 - ASTM N330
 VULCAN 3H - ASTM N347
 VULCAN 5H
 VULCAN 6 - ASTM N220
 VULCAN 7H - ASTM N234
 VULCAN 9 - ASTM N110
 VULCAN J - ASTM N375
 VULCAN K - ASTM N351
 VULCAN M - ASTM N339
 VULCAN XC-72
 VULCAN 10H - ASTM N134
REGAL 300 - ASTM N326   1.10
  1.26
 1.22
 		 1.30
 		  1.00
 1.12
 		 0.94
 		  0.88
  0.84
  0.88
  0.85
  0.88
  0.88
  0.91
  0.88
 0.83
 		 0.85
 
SPHERON 5000 0.91
   1.15
 		 1.11
 		  1.18
  0.91
  1.02
  0.85
 0.80
 		 0.76
 		 0.80
 		 0.77
 		 0.80
 		 0.80
 		  0.83
  0.80
  0.75
  0.77
SPHERON 6000 0.79 0.87   0.97
 		  1.03
 0.79
 		  0.89
 0.75
 		  0.70
  0.67
  0.70
 0.67
 		 0.70
 		 0.70
 		 0.72
 		  0.70
 0.66
 		  0.67
STERLING NS - ASTM N774 0.82
 0.90  1.03
    1.07
  0.82
  0.92
  0.77
  0.72
  0.69
 0.72
 		 0.70
 		  0.72
 0.72
 		  0.75
 0.72
 		 0.68
 		  0.70
STERLING NS-1 - ASTM N762 0.77 0.85
  0.97
  0.94
   0.77
 		  0.86
 0.72
 		  0.68
  0.65
  0.68
 0.65
 		  0.68
 0.68
 		  0.70
 0.68
 		 0.64
 		  0.65
STERLING SO - ASTM N550 1.00
  1.10
  1.26
 1.22
 		  1.30
    1.12
  0.94
  0.88
  0.84
 0.88
 		  0.85
  0.88
  0.88
  0.91
  0.88
 0.83
 		 0.85
 
STERLING V - ASTM N660
 0.89  0.98
  1.13
  1.09
  1.16
  0.89
    0.84
 0.79
 		  0.75
  0.79
 0.76
 		  0.79
 0.79
 		 0.81
 		 0.79
 		 0.74
 		  0.76
VULCAN 3 - ASTM N330
 1.06 1.17
 		  1.34
  1.30
  1.38
  1.06
  1.19
    0.94
  0.89
  0.94
  0.90
  0.94
 0.94
 		  0.97
 0.94
 		  0.88
  0.90
VULCAN 3H - ASTM N347 1.14  1.25
  1.43
 1.39
 		  1.48
  1.14
  1.27
  1.07
    0.95
 1.00
 		  0.97
  1.00
  1.00
  1.03
  1.00
  0.94
 0.97
 
VULCAN 5H 1.19  1.31
  1.50
 1.45
 		  1.55
 1.19
 		  1.33
 1.12
 		 1.05
 		   1.05
 		  1.01
  1.05
 1.05
 		  1.08
  1.05
  0.99
  1.01
VULCAN 6 - ASTM N220
 1.14  1.25
  1.43
 1.39
 		  1.53
  1.14
  1.27
  1.07
  1.00
 0.95
 		    0.97
  1.00
 1.00
 		  1.03
  1.00
  0.94
 0.97
 
VULCAN 7H - ASTM N234 1.18  1.29
 1.48
 		  1.44
 1.53
 		 1.18
 		  1.32
  1.11
 1.04
 		  0.99
  1.04
   1.04
 		  1.04
 1.07
 		  1.04
  0.98
 1.00
 
VULCAN 9 - ASTM N110 1.14  1.25
  1.43
  1.39
  1.48
  1.14
  1.27
  1.07
  1.00
  0.95
  1.00
 0.97
 		   1.00
 		  1.03
  1.00
 0.94
 		  0.97
VULCAN J - ASTM N375 1.14 1.25
 		  1.43
  1.39
  1.48
  1.14
  1.27
  1.07
  1.00
 0.95
 		  1.00
 0.97
 		  1.00
   1.03
 		  1.00
 0.94
 		  0.97
VULCAN K - ASTM N351 1.10  1.21
  1.38
  1.34
  1.43
  1.10
 1.23
 		  1.03
  0.97
 0.92
 		  0.97
 0.93
 		 0.97
 		 0.97
 		    0.97
 0.91
 		 0.93
 
VULCAN M - ASTM N339 1.14 1.25
 		  1.43
 1.39
 		  1.48
  1.14
  1.27
 1.07
 		 1.00
 		  0.95
  1.00
  0.97
  1.00
  1.00
  1.03
    0.94
 0.97
 
VULCAN XC-72 1.20
  1.33
  1.52
  1.47
  1.57
 1.20
 		  1.35
 1.13
 		  1.06
  1.01
  1.06
  1.02
  1.06
  1.06
  1.10
  1.06
    1.02
VULCAN 10H - ASTM N134 1.18  1.29
  1.48
  1.44
  1.53
 1.18
 		  1.32
 1.11
 		  1.04
  0.99
  1.04
 1.00
 		  1.04
  1.04
  1.07
  1.04
 0.98
 		  

Example of use: from STERLING SO (left column) to SPHERON 5000 (top row) = 1.10

REGAL®, SPHERON®, STERLING® and VULCAN® are registered trademarks for carbon blacks manufactured by Cabot Corporation.

The data and conclusions contained herein are based on work believed to be reliable; however, Cabot cannot and does not guarantee that similar results and/or conclusions will be obtained by others. This information is provided as a convenience and for informational purposes only. No guarantee or warranty as to this information, or any product to which it relates, is given or implied. CABOT DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AS TO (i) SUCH INFORMATION, (ii) ANY PRODUCT, (iii) INTELLECTUAL PROPERTY INFRINGEMENT. In no event is Cabot responsible for, and Cabot does not accept and hereby disclaims liability for, any damages whatsoever in connection with the use of or reliance on this information or any product to which it relates.