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Charts and Conversions
Grease Compatibility Guide

MISCELLANEOUS CONVERSIONS
Centipoise ÷ Specific Gravity = cST
cSt x Specific Gravity = Centipoise
Density x 8.36 = Pounds per Gallon
Kilogram (kg) x 2.2046 = Pounds (U.S.)
Pounds (U.S.) x 0.45259 = Kilogram (kg)
Ounce (avoirdupois) x 28.35 = Grams (gm)
Gram x 0.0353 = Ounce (avoir)
Gallons (U.S.) x 3.7854 = Liters(l)
Liter x 0.2642 = Gallons (U.S.)
 
·Each vertical inch of an upright 55 gallon drum contains 1.72 gallons.
 
· The Volume in U.S. gallons, of a cilinder, is equal to the square root of the diameter (in inches) x height of cylinder (in inches) x 0.034




CONVERSION
Kinematic Viscosity (cSt)
to
Saybolt Universal Viscosity (SUS)
cSt SUS
2.0 32.6
2.5 34.3
3.0 36.0
4.1 39.5
5.0 42.4
7.0 48.8
9.0 55.4
10.0 58.8
10.5 60.5
12.0 66.0
13.3 70.8
1.9 77.0
15.0 77.4
15.9 81.0
17.1 85.8
18.3 90.7
19.5 95.7
20.7 100.8
22.0 106.3
27.6 130.0
29.8 140.6
32.0 150.5
34.2 160.4
36.4 170.4
38.6 180.4
40.8 190.4
43.0 200.0
46.0 214.0
47.0 221.0
51.7 240.0
56.1 261.0
60.4 280.0
64.7 300.0
68.0 315.0
70.2 326.0
73.0 339.0
74.0 343.0
75.0 348.0
Note:

The relationship between saybolt seconds and kinematic viscosities is linear above 75 cSt.

To Convert Kinematic Viscosities above 75 cSt to SUS at 210°F, multiply by 4.664.

To convert centistokes to SUS at 100°F, multiply by 4.632

Consistency Grades for Lubricating Greases
NLGI Grade Worked Penetratoin Range mm/10
000 445 - 47
00 400 - 430
0 355 - 385
1 310 - 340
2 265 - 295
3 220 - 250
4 175 - 205
5 130 - 160
6 85 - 115









International Organization of Standardization (ISO)
VISCOSITY CLASSIFICATION SYSTEM FOR INDUSTRIAL FLUID LUBRICANTS
ISO Viscosity Grade Number Viscosity Grade Range
Centistokes at 40°C
Minimum Maximum
2 1.98 2.42
3 2.88 3.52
5 4.14 5.06
7 6.12 7.48
10 9.00 11.00
15 13.50 16.50
 
22 19.80 24.20
32 28.80 35.00
46 41.40 50.60
68 61.20 74.80
100 90.00 110.00
150 135.00 165.00
 
220 198.00 242.00
320 288.00 352.00
460 414.00 506.00
680 612.00 748.00
1000 900.00 1100.00
1500 1350.00 1650.00



AGMA LUBRICANT NUMBERS
Common SUS @ 100˚F Metric cSt @ 37.8˚C
1 193 - 235 41.4 - 50.6
2 284 - 347 61.2 - 74.8
3 417 - 510 90 - 110
4 626 - 765 135 - 165
5 918 - 1122 198 - 242
6 1335 - 1632 228 - 352
7 Comp. 1919 - 2346 414 - 506
8 Comp. 2887 - 3467 612 - 748
8A Comp. 4171 - 5098 900 - 1100
 
2 EP 284 - 347 61.2 - 74.8
3 EP 417 - 510 90 - 110
4 EP 626 - 76 135 - 15
5 EP 918 - 1122 198 - 242
6 EP 1335 - 1632 288 - 352
7 EP 1919- 2346 414 - 506
8 EP 2837 - 3467 900 - 1100



   



 

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