ASTM D6425-11

Standard Test Method for Measuring Friction and Wear Properties of Extreme Pressure (EP) Lubricating Oils Using SRV Test Machine

SIGNIFICANCE AND USE
This test method can be used to determine anti-wear properties and coefficient of friction of EP lubricating oils at selected temperatures and loads specified for use in applications in which high-speed vibrational or start-stop motions are present for extended periods of time under initial high Hertzian point contact pressures. It has found application as a screening test for lubricants used in gear or cam/follower systems. Users of this test method should determine whether results correlate with field performance or other applications.
SCOPE
1.1 This test method covers an extreme pressure (EP) lubricating oil's coefficient of friction and its ability to protect against wear when subjected to high-frequency, linear oscillation motion. The procedure is identical to that described in DIN 51834.
1.2 This test method can also be used to determine the ability of a non-EP lubricating oil to protect against wear and its coefficient of friction under similar test conditions.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Nov-2011
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0.11 - Tribological Properties of Industrial Fluids and Lubricates

Relations

• Replaces: ASTM D6425-05(2010)e1 - Standard Test Method for Measuring Friction and Wear Properties of Extreme Pressure (EP) Lubricating Oils Using SRV Test Machine
• Effective Date: 01-Dec-2011
• Replaced By: ASTM D6425-17 - Standard Test Method for Measuring Friction and Wear Properties of Extreme Pressure (EP) Lubricating Oils Using SRV Test Machine
• Effective Date: 01-Oct-2017
• Referred By: ASTM D8316-20a - Standard Test Method for Measuring Friction and Wear Properties of Extreme Pressure (EP) Lubricating Oils with the Roller-Disk Geometry Using SRV Test Machine
• Effective Date: 01-Dec-2011
• Referred By: ASTM D5706-16 - Standard Test Method for Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
• Effective Date: 01-Dec-2011
• Referred By: ASTM D7594-19 - Standard Test Method for Determining Fretting Wear Resistance of Lubricating Greases Under High Hertzian Contact Pressures Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
• Effective Date: 01-Dec-2011
• Referred By: ASTM G115-10(2018) - Standard Guide for Measuring and Reporting Friction Coefficients
• Effective Date: 01-Dec-2011
• Referred By: ASTM D8503-23 - Standard Test Method for Determining the Scuffing Temperature Limit of Lubricating Oils Using the SRV Test Machine
• Effective Date: 01-Dec-2011
• Referred By: ASTM D8324-21 - Standard Guide for Selection of Environmentally Acceptable Lubricants for the U.S. Environmental Protection Agency (EPA) Vessel General Permit
• Effective Date: 01-Dec-2011
• Referred By: ASTM D7755-11(2022) - Standard Practice for Determining the Wear Volume on Standard Test Pieces Used by High-Frequency, Linear-Oscillation (SRV) Test Machine
• Effective Date: 01-Dec-2011
• Referred By: ASTM D5707-19 - Standard Test Method for Measuring Friction and Wear Properties of Lubricating Grease Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
• Effective Date: 01-Dec-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6425 − 11
Standard Test Method for
Measuring Friction and Wear Properties of Extreme
1
Pressure (EP) Lubricating Oils Using SRV Test Machine
This standard is issued under the fixed designation D6425; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method represents the transformation of DIN 51834-2:1997. The DIN working group
implemented changes at its annual meeting in Munich in September 2000. ASTM Committee D02
adopted these modifications as closely as possible. The DIN working group widens the scope of the
standard to accommodate different test conditions and refines repeatability and reproducibility on the
base of four international RR tests. It also introduces the wear volume as a tribological quantity.
1. Scope* Products, and Lubricants
D5706 Test Method for Determining Extreme Pressure
1.1 This test method covers an extreme pressure (EP)
Properties of Lubricating Greases Using a High-
lubricating oil’s coefficient of friction and its ability to protect
Frequency, Linear-Oscillation (SRV) Test Machine
against wear when subjected to high-frequency, linear oscilla-
D7421 Test Method for Determining Extreme Pressure
tionmotion.TheprocedureisidenticaltothatdescribedinDIN
Properties of Lubricating Oils Using High-Frequency,
51834.
Linear-Oscillation (SRV) Test Machine
1.2 This test method can also be used to determine the
E45 Test Methods for Determining the Inclusion Content of
ability of a non-EP lubricating oil to protect against wear and
Steel
its coefficient of friction under similar test conditions.
G40 Terminology Relating to Wear and Erosion
3
1.3 The values stated in SI units are to be regarded as
2.2 DIN Standards:
standard. No other units of measurement are included in this
DIN EN ISO 683-17 Heat-treated Steels, alloy steels and
standard.
free-cutting steels – Part 17 : Ball and roller bearing steels
DIN 51631:1999 Mineral spirits; special boiling point spir-
1.4 This standard does not purport to address all of the
its; requirements
safety concerns, if any, associated with its use. It is the
DIN 51834 Tribological Test in the Translatory Oscillation
responsibility of the user of this standard to establish appro-
Apparatus (Part 2: Determination of Friction and Wear
priate safety and health practices and determine the applica-
Data for Lubricating Oils)
bility of regulatory limitations prior to use.
DIN EN ISO 13565-2:1998 Geometrical Product Specifica-
2. Referenced Documents
tions (GPS)—Surface Texture: Profile Method; Surfaces
2 having Stratified Functional Properties—Part 2: Height
2.1 ASTM Standards:
Characterization using Linear Material Ratio Curve (re-
A295 Specification for High-Carbon Anti-Friction Bearing
placement of DIN 4776:1990)
Steel
D4175 Terminology Relating to Petroleum, Petroleum
3. Terminology
3.1 Definitions:
1
This test method is under the jurisdiction of ASTM Committee D02 on
3.1.1 break-in, n—in tribology, an initial transition process
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
occurring in newly established wearing contacts, often accom-
Subcommittee D02.L0.11 on Tribiological Properties of Industrial Fluids and
panied by transients in coefficient of friction or wear rate, or
Lubricates.
Current edition approved Dec. 1, 2011. Published March 2012. Originally
both, that are uncharacteristic of the given tribological sys-
ε1
approved in 1999. Last previous edition approved in 2010 as D6425–05(2010) .
tem’s long term behavior. (Synonym: run-in, wear-in) G40
DOI: 10.1520/D6425-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from Deutsches Institut für Normung, Beuth Verlag GmbH, Burg-
the ASTM website. grafenstrasse 6, D-10787 Berlin, Germany.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6425 − 11
3.1.2 C.L.A., n—in measuring surface finish, the arithmetic
average of the absolute distances of all profile points from the
4
mean line for a given distance.
3.1.3 coeffıcient of friction µ or f, n—in tribology, the
dimensionless ratio of the friction force (F) between two
f
bodies to the normal force (F ) pressing these bodies together.
n
G40
µ 5 ~F /F ! (1)
f n
3.1.4 EP lubricating oil, n—a liquid lubricant contai
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:D6425–05 (Reapproved 2010) Designation:D6425–11
Standard Test Method for
Measuring Friction and Wear Properties of Extreme
1
Pressure (EP) Lubricating Oils Using SRV Test Machine
This standard is issued under the fixed designation D6425; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
´ NOTE—Updated Note 11 editorially in May 2010.
INTRODUCTION
This test method represents the transformation of DIN 51834-2:1997. The DIN working group
implemented changes at its annual meeting in Munich in September 2000. ASTM Committee D02
adopted these modifications as closely as possible. The DIN working group widens the scope of the
standard to accommodate different test conditions and refines repeatability and reproducibility on the
base of four international RR tests. It also introduces the wear volume as a tribological quantity.
1. Scope*
1.1 This test method covers an extreme pressure (EP) lubricating oil’s coefficient of friction and its ability to protect against
wear when subjected to high-frequency, linear oscillation motion. The procedure is identical to that described in DIN 51834.
1.2 This test method can also be used to determine the ability of a non-EP lubricating oil to protect against wear and its
coefficient of friction under similar test conditions.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A295 Specification for High-Carbon Anti-Friction Bearing Steel
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D5706 Test Method for Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency,
Linear-Oscillation (SRV) Test Machine
D7421 Test Method for Determining Extreme Pressure Properties of Lubricating Oils Using High-Frequency, Linear-
Oscillation (SRV) Test Machine
E45 Test Methods for Determining the Inclusion Content of Steel
G40 Terminology Relating to Wear and Erosion
3
2.2 DIN Standards:
DIN EN ISO 683-17 Heat-treated Steels, alloy steels and free-cutting steels – Part 17 : Ball and roller bearing steels
DIN 51631:1999 Mineral spirits; special boiling point spirits; requirements
DIN 51834 Tribological Test in the Translatory Oscillation Apparatus (Part 2: Determination of Friction and Wear Data for
Lubricating Oils)
DIN EN ISO 13565-2:1998 Geometrical Product Specifications (GPS)—Surface Texture: Profile Method; Surfaces having
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.L0.11
on Tribiological Properties of Industrial Fluids and Lubricates.
Current edition approved May 1, 2010. Published May 2010. Originally approved in 1999. Last previous edition approved in 2005 as D6425 – 05. DOI:
10.1520/D6425-05R10E01.
´1
Current edition approved Dec. 1, 2011. Published March 2012. Originally approved in 1999. Last previous edition approved in 2010 as D6425–05(2010) . DOI:
10.1520/D6425-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Deutsches Institut für Normung, Beuth Verlag GmbH, Burggrafenstrasse 6, D-10787 Berlin, Germany.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6425–11
Stratified Functional Properties—Part 2: Height Characterization using Linear Material Ratio Curve (replacement of DIN
4776:1990)
2.3 ISO Standards:
ISO 1250:1972Mineral Solvents for Paints, White Spirits and Related Hydrocarbon Solvents
3. Terminology
3.1 Definitions:
3.1.1 break-in, n—in tribology,aninitialtransitionprocessoccurringinnewlyestablishedwearingcontacts,oftena
...