ILMA Compoundings - November/December 2020 - 43

Table 1: HPM " core " specification and HPM+ tags
Cone Penetration of Lubricating Grease

Worked 60 strokes

ASTM D217

dmm

220

340

same as GC-LB

Cone Penetration of Lubricating Grease

Prolonged worked penetration (∆100k)

ASTM D217

dmm

-30

+30

common test, challenging limits

168 hours @100 °C

ASTM D4289

∆Hardness (Shore A points)

-15

+2

∆Volume percent

-5

+30

Elastomer Compatibility of Lubricating Greases
and Fluids [Using NBR Standard Reference
Elastomer per ISO13226]
Oxidation Stability of Lubricating Greases by
the Oxygen Pressure Vessel Method

Pressure drop after 100hrs @ 100 °C

ASTM D942

kPa (psi)

35 (4.9)

common industry spec

Determining the Water Washout Characteristics
of Lubricating Greases

60 minutes @ 79 °C

ASTM D1264

wt%

10

based on GC

Low-Temperature Torque of Ball Bearing Grease

-20 °C

ASTM D1478
mNm (g·cm)

1000 (10,200)

change from D4693 and change in
temperature

Starting Torque

HPM+HL

HPM+CR

HPM+WR

HPM Spec

Running Torque @ 60 minutes

mNm (g·cm)

100 (1,020)

Oil Separation from Lubricating Grease During
Storage

24 hours @ 25 °C

ASTM D1742

wt%

5.0

based on GC

Oil Separation from Lubricating Grease
(Conical Sieve Method)

30 hours @ 100 °C

ASTM D6184

wt%

7.0

new test, more severe

Roll Stability of Lubricating Grease [using ½
scale penetration]

2 hours @ room temperature

ASTM D1831

dmm

+10%

common industry spec

Wear Preventive Characteristics of Lubricating
Grease (Four-Ball Method) Wear Scar Diameter

0.60

common industry spec

-10%

75 °C, 1200 rpm, 60 minutes

ASTM D2226

mm

Measurement of Extreme-Pressure Properties
of Lubricating Grease (Four-Ball Method),
Weld point

1770 rpm @ 27 °C

ASTM D2596

kgf

250

common industry spec

Determining Corrosion Preventive Properties of
Lubricating Greases

48 hours @ 52 °C

ASTM D1743

rating

Pass

same as GC-LB

Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet
Conditions (Emcor Test)

Distilled water, 2 bearings

ASTM D6138

rating

0,1

new test, adds dynamic test

Detection of Copper Corrosion from Lubricating Grease

24 hours @ 100 °C

ASTM D4048

rating

1B

common industry spec

Determining the Water Washout Characteristics
of Lubricating Grease

60 minutes @ 79 °C

ASTM D1264

wt%

5.0

based on GC but more severe than
HPM

Determining the Resistance of Lubricating
Grease to Water Spray

5 minutes @ 38 °C

ASTM D4049

wt%

40

new test

Roll Stability of Lubricating Grease in Presence
of Water [using ½ scale penetration]

2 hours @ room temperature

ASTM D8022

dmm

-15%

+15%

new test

Corrosion-Preventive Properties of Lubricating
Greases in Presence of Dilute Synthetic Sea
Water Environments

10% synthetic seawater
(as in ASTM D665)

ASTM D5969

rating

Pass

Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet
Conditions (Emcor Test)

100% synthetic seawater
(as in ASTM D665)

ASTM D6138

rating

1, 2

new test, more severe than
HPM D6138

Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet
Conditions (Emcor Test)

0.5 N solution (~3% NaCl solution)

ASTM D6138

rating

2, 3

new test, more severe than
HPM D6138

Wear Preventive Characteristics of Lubricating
Grease (Four-Ball Method) Wear Scar Diameter

0.50

more severe than HPM

new test, more severe than
HPM D1743

75 °C, 1200 rpm, 60 minutes

ASTM D2266

mm

Measurement of Extreme-Pressure Properties
of Lubricating Grease (Four-Ball Method),
Weld Point

1770 rpm @ 27 °C

ASTM D2596

kgf

400

more severe than HPM

Determining Extreme Pressure Properties of
Lubricating Greases Using a High-Frenquency,
Linear-Oscillation (SRV) test Machine

(Procedure B @ 80 °C

ASTM D5706

N

800

new test

Average of 2 runs, 22 hours @ room
temperature

ASTM D4170

mg

5.0

will use provisional licensing until
ASTM " fixes " test

50 °C, 100N, 0.300mm, 4 hours

ASTM D7594

mm

0.500

new test

-30 °C

ASTM D1478

Starting Torque

mNm (g·cm)

1000 (10,200)

Running Torque @ 60 Minutes

mNm (g·cm)

100 (1,020)

change from D4693 and change in
temperature

Fretting Wear Protection by Lubricating
Greases
Determining Fretting Wear Resistance of
Lubricating Greases Under High Hertzian
Contact Pressures Using a High-Frequency,
Linear Oscillation (SRV) Test Machine
Low-Temperature Torque of Ball Bearing Grease

HPM+LT

based on GC, with new conditions

Grease Mobility
Determination of Flow Pressure of Lubricating
Greases According to Kesternich Method

-20 °C

US Steel LT-37

g/min

-30 °C

DIN 51805

mbar

new test, still needs standardization
and precision

10
1400

new test

Note: HPM and HPM+ specifications are performance specifications.

43



ILMA Compoundings - November/December 2020

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