SAE J300 Viscosity Grades for Engine Oils ISO Viscosity Grade Conversions Viscosity Ranges for AGMA Lubricant Numbers Axle and Manual Transmission

Transcription

1 Viscosity

2 Contents Viscosity SAE J300 Viscosity Grades for Engine Oils ISO Viscosity Grade Conversions Viscosity Ranges for AGMA Lubricant Numbers Axle and Manual Transmission Lubricant Viscosity Classification SAE Classification MIL-L-2105E Specification Comparison of Viscosity Classifications Viscosity Equivalents at Same Temperature Two Components Viscosity Blending Chart (cst) Base Stocks Viscosities Conversion Factors

3 SAE J300 Viscosity Grades for Engine Oils - December 1999 SAE Low Temperature ( C) Low Temperature ( C) Kinematic Kinematic High-Shear Viscosity Cranking Viscosity (1), Pumping Viscosity (2), cp Max. Viscosity (3) (cst) Viscosity (3) (cst) Viscosity (4) (cp) at 1 C Grade cp Max. with No Yield Stress at C Min. at C Max. and 10 6 s -1 Min. 0W 6200 at at W 60 at at W 7000 at at W 7000 at at W 90 at at W at at < < < (0W-, 5W-, and 10W- grades) < (15W-, 20W-, 25W-, grades) < < All values are critical specifications as defined by ASTM D cp=1 mpa. s; 1 cst=1 mm 2 s -1 Notes: (1) ASTM D (2) ASTM D Note that the presence of any yield stress detectable by this method constitutes a failure regardless of viscosity. (3) ASTM D 445. (4) ASTM D 4683, CEC L-36-A-90 (ASTM D 4741), or ASTM D 5481.

4 ISO Viscosity Grade Conversions ISO Mid-point Kinematic Viscosity Limits ASTM, Saybolt Saybolt Viscosity SUS Viscosity Kinematic cst at C (104 F) Viscosity Number F (37.8 C) Grade Viscosity Min. Max. Min. Max

5 Viscosity Ranges for AGMA Lubricant Numbers Rust and Oxidation Viscosity Range Equivalent Extreme Pressure Inhibited Gear Oils ISO Grade Gear Lubricants AGMA Lubricant No. cst (mm 2 /s) at C AGMA Lubricant No to to EP 3 90 to EP to EP to EP to EP 7 Compounded 414 to EP 8 Compounded 612 to EP 8A Compounded 900 to 1 0 8A EP Notes: Viscosity ranges for AGMA Lubricant Numbers will henceforth be identical with those of the ASTM system. Oils compounded with 3% to 10% fatty or synthetic fatty oils.

6 SAE J306 Automotive Gear Viscosity Classification Axle and Manual Transmission Lubricant Viscosity Classification 70W 75W 80W 85W Viscosity at C min, mm 2 /s max, mm 2 /s No requirement No req. Viscosity of 1,000 mpa.s, max temp C No requirement 20 hr. KRL Shear (CRC L-45-T-93), KV after Shear, mm 2 /s MIL-PRF-2105E Specification 75W 80W-90 85W-1 Viscosity at C min, mm 2 /s max, mm 2 /s Viscosity of 1,000 mpa.s, max temp C Channel Point, min, C Flash Point, min, C

7 Comparison of Viscosity Classifications Approximate Equivalents Kinematic Viscosities cst/ C cst/ C Saybolt Viscosities SUS/ F SUS/ 210 F ISO VG C SAE Grades Crankcase Oils C SAE Grades Gear Oils C AGMA Grades F A W W W 75W 5W Viscosities can be related horizontally only. Viscosities based on 95 VI single grade oils. ISO grades are specified at C. AGMA grades are specified at F. SAE 75W, 80W, 85W, and 5W & 10W specified at low temperature. Equivalent viscosities for & 210 F are shown.

8 Viscosity Equivalents at Same Temperature Approximate Equivalents Kinematic Saybolt Redwood Engler Saybolt Redwood Kinematic Saybolt Redwood Engler Saybolt Redwood (Centistokes) Universal No.1 (Degrees) Furol No.2 (Centistokes) Universal No.1 (Degrees) Furol No.2 (Seconds) (Seconds) (Seconds) (Seconds) (Seconds) (Seconds) (Seconds) (Seconds) , ,200 1, ,0 1, ,0 1, ,800 1, ,000 1, ,0 2, ,000 2, ,0 3, ,000 3, ,0 3, ,082 5,000 4, ,190 5,0 4, ,300 6,000 5, ,5 6,0 5, ,515 7,000 6, ,625 7,0 6, ,730 8,000 7, ,8 8,0 7, ,9 9,000 7, ,055 9,0 8, ,165 10,000 8, ,

9 Two Components Viscosity Blending (cst) Component A % 10% 20% 30% % % % 70% 80% 90% % Viscosity Centistrokes Viscosity Centistrokes % 90% 80% 70% % % % 30% 20% 10% 0% Component B

10 Base Stocks Viscosities Approximate Equivalents Neutrals C C cst SUS cst SUS 70N N N N N N N N N N N N N N N N N N N N N Brights C C cst SUS cst SUS 135 Brt Brt Brt Brt Brt Brt Brt

11 Conversion Factors Linear Measurement Area Measurement Cubic Measurement Volumetric Measurement Weight Measurement Weights per Volume Temperature Conversions Gravity Conversion Weight/Volume Conversion (for additive blending) 1 yd = m 1 m = yd 1 ft = m 1 m = 3.28 ft 1 in = 2.54 cm 1 cm = in 1 mile = 1.93 km 1 km = mile 1 sq yd = sq m 1 sq m = 1.19 sq yd 1 sq in = sq cm 1 sq cm = sq in 1 cu in = cc 1 cc = cu in 1 cu ft = cu m 1 cu m = cu ft 1 cu yd = cu m 1 cu m = cu yd 1 imp gall = litre 1 litre = imp gall 1 imp gall = US gall 1 litre = 1.76 pints 1 oz = g 1 g = oz 1 lb = g 1 kg = lbs 1 g/litre = oz/imp gall 1 oz/imp gall = g/litre 1 g/litre = 0.02 lb/imp gall 1 lb/imp gall = g/litre C = ( F - 32) x 5/9 F = ( C x 9/5) + 32 API gravity, deg = / F) % volume of additive = % weight of additive x density of finished oil density of additive (typical finished oil density = 0.88 g/ml) 04/02 Viscosity