ASTM D2511-93(2003)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D2511–93 (Reapproved 2003)
Standard Test Method for
Thermal Shock Sensitivity of Solid Film Lubricants
This standard is issued under the fixed designation D2511; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2.1 dry solid film lubricant, n—on a steel surface, one
consisting of friction-reducing powders bonded in tight matrix
1.1 This test method covers the measurement of the resis-
to the surface of the metal.
tance of dry solid film lubricants to deterioration when sub-
jected to temperature extremes.
4. Summary of Test Method
1.2 The values stated in SI units are to be regarded as the
4.1 A steel panel having the solid film lubricant deposited
standard. The inch-pound units given in parentheses are for
on one surface is subjected to 260°C (500°F) heat followed by
information only.
immediate exposure to−54°C (−65°F). The solid film is then
1.3 This standard does not purport to address all of the
examined for cracking, flaking, blistering, or other evidence of
safety concerns, if any, associated with its use. It is the
thermal instability.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Significance and Use
bility of regulatory limitations prior to use.
5.1 Solid lubricant coatings are applied to surfaces that are
exposed to heat and cold to such a degree that in many cases
2. Referenced Documents
liquid lubricants are not practical. Adherence under these
2.1 ASTM Standards:
conditionsismandatorytopreservethebearingsurfacesduring
A 167 Specification for Stainless and Heat-Resisting
sliding motion.
Chromium-Nickel Steel Plate, Sheet, and Strip
D2510 Test Method forAdhesion of Solid Film Lubricants
6. Apparatus
D 4175 Terminology Relating to Petroleum, Petroleum
6.1 Oven, capable of maintaining a temperature at 260 6
Products and Lubricants
5.5°C (500 6 10°F) and 149 6 5.5°C (300 6 10°F) (forced
2.2 U.S. Federal Specification:
circulation).
P-D-680 Dry Cleaning Solvent
6.2 Sub-Zero Cabinet, capable of maintaining a constant
temperature of −54 6 0.5°C (−65 6 1°F).
3. Terminology
6.3 Micrometer, reading 0 to 25 6 0.0025 mm, (0 to 1 6
3.1 Definitions:
0.0001 in.) with a 1-ball anvil.
3.1.1 lubricant, n—any material interposed between two
surfaces that reduces the friction or wear between them (see
7. Reagents and Materials
Terminology4175).
7.1 Test Panels, of corrosion-resistant steel, 76 by 152 by
3.2 Definitions of Terms Specific to This Standard:
0.914 mm (3 by 6 by 0.036 in.), conforming to Specification
A167,No.2Dfinish,conditionannealed.Type321hasproved
satisfactory and is generally available.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
7.2 Dry Cleaning Solvent, conforming to U. S. Federal
D02.L0 on Industrial Lubricants.
Specification P-D-680.
Current edition approved Nov. 1, 2003. Published November 2003. Originally
´1
approved in 1966. Last previous edition approved in 1998 as D2511–93 (1998) .
8. Sampling, Test Specimens, and Test Units
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
8.1 Have a sufficient quantity of solid film mixture to
Standar
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