ASTM D6200-01(2017)
(Test Method)Standard Test Method for Determination of Cooling Characteristics of Quench Oils by Cooling Curve Analysis
Standard Test Method for Determination of Cooling Characteristics of Quench Oils by Cooling Curve Analysis
SIGNIFICANCE AND USE
5.1 This test method provides a cooling time versus temperature pathway which is directly proportional to physical properties such as the hardness obtainable upon quenching of a metal. The results obtained by this test may be used as a guide in heat treating oil selection or comparison of quench severities of different heat treating oils, new or used.
SCOPE
1.1 This test method describes the equipment and the procedure for evaluation of a quenching oil's quenching characteristics by cooling rate determination.
1.2 This test is designed to evaluate quenching oils in a non-agitated system. There is no correlation between these test results and the results obtained in agitated systems.
1.3 The values in SI units are to be regarded as the standard.
1.3.1 Exception—The values in parentheses are provided for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Designation: D6200 − 01 (Reapproved 2017)
Standard Test Method for
Determination of Cooling Characteristics of Quench Oils by
1
Cooling Curve Analysis
This standard is issued under the fixed designation D6200; 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. Scope (EMF) Tables for Standardized Thermocouples
4
2.2 SAE Standards:
1.1 This test method describes the equipment and the
AMS 5665 NickelAlloy Corrosion and Heat Resistant Bars,
procedure for evaluation of a quenching oil’s quenching
Forgings and Rings
characteristics by cooling rate determination.
5
2.3 Japanese Industrial Standards (JIS):
1.2 This test is designed to evaluate quenching oils in a
JIS K 2242 - 1980 Heat Treating Oil
non-agitated system. There is no correlation between these test
JIS K 6753 - 1977 Di-2-ethylhexyl Phthalate
results and the results obtained in agitated systems.
3. Terminology
1.3 The values in SI units are to be regarded as the standard.
1.3.1 Exception—Thevaluesinparenthesesareprovidedfor
3.1 Definitions of Terms Specific to This Standard:
information only.
3.1.1 cooling curve, n—the cooling curve is a graphical
representation of the cooling time (t) - temperature (T) re-
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the sponse of the probe (see 7.3).An example is illustrated in Part
Bof Fig. 1.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.1.2 cooling curve analysis, n—the process of quantifying
mine the applicability of regulatory limitations prior to use.
the cooling characteristics of a heat treating oil based on the
1.5 This international standard was developed in accor-
temperature versus time profile obtained by cooling a pre-
dance with internationally recognized principles on standard-
heated metal probe assembly (see Fig. 2) under standard
ization established in the Decision on Principles for the
conditions.
Development of International Standards, Guides and Recom-
3.1.3 cooling rate curve, n—The cooling rate curve is
mendations issued by the World Trade Organization Technical
obtained by calculating the first derivative (dT/dt)ofthe
Barriers to Trade (TBT) Committee.
cooling time - temperature curve. An example is illustrated in
Part B of Fig. 1.
2. Referenced Documents
3.1.4 heat treating oil, n—a hydrocarbon containing
2
2.1 ASTM Standards:
product, often derived from petroleum base stock, that is used
D1744 Test Method for Determination of Water in Liquid
to mediate heat transfer between heated metal, such as austen-
Petroleum Products by Karl Fischer Reagent (Withdrawn
itized steel, to control the microstructure that is formed upon
3
2016)
cooling and also control distortion and minimize cracking
E220 Test Method for Calibration of Thermocouples By
which may accompany the cooling process.
Comparison Techniques
3.1.5 quench severity, n—the ability of a quenching medium
E230 Specification and Temperature-Electromotive Force
6
to extract heat from a hot metal.
1 4. Summary of Test Method
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
4.1 Determine the nickel alloy probe assembly’s cooling
Subcommittee D02.L0.06 on Non-Lubricating Process Fluids.
time versus temperature after placing the assembly in a furnace
Current edition approved Oct. 1, 2017. Published November 2017. Originally
approved in 1997. Last previous edition approved in 2012 as D6200–01(2012).
DOI: 10.1520/D6200-01R17.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Society of Automotive Engineers (SAE), 400 Commonwealth
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Dr., Warrendale, PA 15096-0001, http://www.sae.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Japanese Standards Organization (JSA), 4-1-24 Akasaka
the ASTM website. Minato-Ku, Tokyo, 107-8440, Japan, http://www.jsa.or.ja.
3 6
The last approved version of this historical standard is referenced on Boyer, H. E. and Cary, P. R., Quenching and Distortion Control, ASM
www.astm.org. International, Materials Park, OH, 1988, p. 162.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6200 − 01 (2017)
FIG. 1 Typical Temperature/Time and Temperature/Cooling Rate Plots For Test Probe Cooled i
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
Designation: D6200 − 01 (Reapproved 2012) D6200 − 01 (Reapproved 2017)
Standard Test Method for
Determination of Cooling Characteristics of Quench Oils by
1
Cooling Curve Analysis
This standard is issued under the fixed designation D6200; 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. Scope
1.1 This test method describes the equipment and the procedure for evaluation of a quenching oil’s quenching characteristics
by cooling rate determination.
1.2 This test is designed to evaluate quenching oils in a non-agitated system. There is no correlation between these test results
and the results obtained in agitated systems.
1.3 The values in SI units are to be regarded as the standard. The values in parentheses are provided for information only.
1.3.1 Exception—The values in parentheses are provided for information only.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D1744 Test Method for Determination of Water in Liquid Petroleum Products by Karl Fischer Reagent (Withdrawn 2016)
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
4
2.2 SAE Standards:
AMS 5665 Nickel Alloy Corrosion and Heat Resistant Bars, Forgings and Rings
5
2.3 Japanese Industrial Standards (JIS):
JIS K 2242 - 1980 Heat Treating Oil
JIS K 6753 - 1977 Di-2-ethylhexyl Phthalate
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 cooling curve, n—the cooling curve is a graphical representation of the cooling time (t) - temperature (T) response of the
probe (see 7.3). An example is illustrated in Part B of Fig. 1.
3.1.2 cooling curve analysis, n—the process of quantifying the cooling characteristics of a heat treating oil based on the
temperature versus time profile obtained by cooling a preheated metal probe assembly (see Fig. 2) under standard conditions.
3.1.3 cooling rate curve, n—The cooling rate curve is obtained by calculating the first derivative (dT/dt) of the cooling time -
temperature curve. An example is illustrated in Part B of Fig. 1.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.L0.06 on Non-Lubricating Process Fluids.
Current edition approved April 15, 2012Oct. 1, 2017. Published May 2012November 2017. Originally approved in 1997. Last previous edition approved in 20072012 as
D6200–01(2007).D6200–01(2012). DOI: 10.1520/D6200-01R12.10.1520/D6200-01R17.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
5
Available from Japanese Standards Organization (JSA), 4-1-24 Akasaka Minato-Ku, Tokyo, 107-8440, Japan, http://www.jsa.or.ja.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6200 − 01 (2017)
FIG. 1 Typical Temperature/Time and Temperature/Cooling Rate Plots For Test Probe Cooled in a Quenching Oil
FIG. 2 Probe Details and General Probe Assembly
3.1.4 heat treating oil, n—a hydrocarbon containing product, often derived from petroleum base stock, that is used to mediate
heat transfer between heated metal, such as austenitized steel, to co
...
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