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Industrial Lubricants - Viscosities vs. ISO-VG Grade

ISO-VG viscosity grades for industrial lubricants.

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The diagram below indicates the minimum and maximum viscosities in centistokes for equivalent ISO-VG grades at temperature 40^oC.

Lubricants - Iso-vg grade viscosity diagram

ISO VG stands for "International Standards Organization Viscosity Grade" and is a number ranged from 2 to 1500.

Equivalent Viscosity of ISO-VG Grades at 40^oC and SAE Crankcase Oil Grades

ISO-VG Grade	SAE Crankcase Oil Grade
22	5W
32	10W
46	15W
68	20W
100	30
150	40
220	50
320	60

Equivalent Viscosity of ISO-VG Grades at 40^oC and SAE Aircraft Oil Grades

ISO-VG Grade	SAE Aircraft Oil Grade
100	65
150	80
220	100
320	120

Equivalent Viscosity of ISO-VG Grades at 40^oC and SAE Gear Lube Grades

ISO-VG Grade	SAE Gear Lube Grade
46	75W
100	80W-90
220	90
460	85W-140
1500	250

Equivalent Viscosity of ISO-VG Grades at 40^oC and AGMA Gear Lube Grades

ISO-VG Grade	AGMA Gear Lube Grade
ISO-VG Grade	Regular	EP
46	1
68	2	2 EP
100	3	3 EP
150	4	4 EP
220	5	5 EP
320	6	6 EP
460	7	7 EP
680	8	8 EP

ISO-VG Grades - Absolute Viscosity vs. Temperature, Reyns vs. Fahrenheit

Lubricants - Iso-vg temperature absolute viscosity diagram

ISO-VG Grades - Absolute Viscosity vs. Temperature, centiPoise vs. Celsius

Lubricants - Iso-vg temperature absolute viscosity diagram - centiPoise vs. Temperature

t_C = 5/9(t_F - 32)
t_F = 9/5 t_C + 32
1 reyns (lb s/in²) = 6896.55 (Pa s)
1 cSt (centiStoke) = 1 centiPoise / SG
SG = specific gravity of oil

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Related Topics

Material Properties - Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Viscosities - Viscosities of products and chemical species at varying conditions.

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Engineering ToolBox, (2008). Industrial Lubricants - Viscosities vs. ISO-VG Grade. [online] Available at: https://www.engineeringtoolbox.com/iso-vg-grade-d_1206.html [Accessed Day Mo. Year].

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