ASTM D6482-21

Standard Test Method for Determination of Cooling Characteristics of Aqueous Polymer Quenchants by Cooling Curve Analysis with Agitation (Tensi Method)

SIGNIFICANCE AND USE
5.1 This test method provides a cooling time versus temperature pathway that is directly proportional to physical properties such as the hardness obtainable upon quenching of a metal. The results obtained by this test method may be used as a guide in quenchant selection or comparison of quench severities of different quenchants, new or used.
SCOPE
1.1 This test method covers the equipment and the procedure for evaluation of quenching characteristics of a quenching fluid by cooling rate determination.  
1.2 This test method is designed to evaluate quenching fluids with agitation, using the Tensi agitation apparatus.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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

• Status: Published
• Publication Date: 30-Nov-2021
• ICS: 75.120 - Hydraulic fluids
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0.06 - Non-Lubricating Process Fluids

Standards Content (Sample)

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.
Designation: D6482 − 21
Standard Test Method for
Determination of Cooling Characteristics of Aqueous
Polymer Quenchants by Cooling Curve Analysis with
1
Agitation (Tensi Method)
This standard is issued under the fixed designation D6482; 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.
1. Scope* (emf) Tables for Standardized Thermocouples
3
2.2 SAE Standard:
1.1 This test method covers the equipment and the proce-
AMS 5665NickelAlloy Corrosion and Heat Resistant Bars,
dureforevaluationofquenchingcharacteristicsofaquenching
Forgings and Rings
fluid by cooling rate determination.
4
2.3 Japanese Industrial Standards:
1.2 This test method is designed to evaluate quenching
JIS K 2242Heat Treating Oil
fluids with agitation, using the Tensi agitation apparatus.
JIS K 6753Di-2-ethylhexyl Phthalate
1.3 The values stated in SI units are to be regarded as
5
2.4 Wolfson Engineering Group:
standard. The values given in parentheses are for information
Wolfson Engineering Group Specification Laboratory Tests
only.
for Assessing the Cooling Curve of Industrial Quenching
1.4 This standard does not purport to address all of the
Media
safety concerns, if any, associated with its use. It is the
6
2.5 ASTM Adjuncts:
responsibility of the user of this standard to establish appro-
ADJD6300 D2PP, Determination of Precision and Bias
priate safety, health, and environmental practices and deter-
Data for Use in Test Methods for Petroleum Products
mine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions of Terms Specific to This Standard:
ization established in the Decision on Principles for the
3.1.1 For definitions of terms used in this test method, refer
Development of International Standards, Guides and Recom-
to Terminology D4175.
mendations issued by the World Trade Organization Technical
3.1.2 aqueous polymer quenchant, n—an aqueous solution
Barriers to Trade (TBT) Committee.
containing a water soluble polymer; typically including poly-
(alkylene glycol), poly(ethyl oxazoline), poly(solium acrylate)
2. Referenced Documents
7
and poly(vinyl pyrrolidone) (1, 2). The quenchant solution
2
2.1 ASTM Standards:
also typically contains additives for corrosion and foam
D4175Terminology Relating to Petroleum Products, Liquid
control, if needed. Quench severity of aqueous polymer quen-
Fuels, and Lubricants
chants is dependent on concentration and molecular weight of
D6200Test Method for Determination of Cooling Charac-
the specific polymer being evaluated, quenchant temperature,
teristics of Quench Oils by Cooling Curve Analysis
and agitation rate as shown in Figs. 1-3, respectively.
E220Test Method for Calibration of Thermocouples By
3.1.3 cooling curve, n—a graphical representation of the
Comparison Techniques
cooling time (t)-temperature (T) response of the probe (see
E230Specification for Temperature-Electromotive Force
7.3). An example is illustrated in Fig. 4A.
1
This test method is under the jurisdiction of ASTM Committee D02 on
3
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of AvailablefromSAEInternational(SAE),400CommonwealthDr.,Warrendale,
Subcommittee D02.L0.06 on Non-Lubricating Process Fluids. PA 15096-0001, http://www.sae.org.
4
Current edition approved Dec. 1, 2021. Published January 2022. Originally Available from Japanese Standards Organization (JSA), 4-1-24 Akasaka
approved in 1999. Last previous edition approved in 2016 as D6482 – 06 (2016). Minato-Ku, Tokyo, 107-8440, Japan, http://www.jsa.or.jp.
5
DOI: 10.1520/D6482-21. WolfsonHeatTreatmentCentre,FederationHouse,VyseSt.,Birmingham,B18
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6LT, UK, http://www.sea.org.uk/whtc.
6
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM No longer available from ASTM International Headquarters.
7
Standards volume information, refer to the standard’s Document Summary page on Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof
the ASTM website. this standard.
*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 ----------------------
D6482 − 21
FIG. 1 Illustration of the
...

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: D6482 − 06 (Reapproved 2016) D6482 − 21
Standard Test Method for
Determination of Cooling Characteristics of Aqueous
Polymer Quenchants by Cooling Curve Analysis with
1
Agitation (Tensi Method)
This standard is issued under the fixed designation D6482; 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 Scope*
1.1 This test method covers the equipment and the procedure for evaluation of quenching characteristics of a quenching fluid by
cooling rate determination.
1.2 This test method is designed to evaluate quenching fluids with agitation, using the Tensi agitation apparatus.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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:
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D6200 Test Method for Determination of Cooling Characteristics of Quench Oils by Cooling Curve Analysis
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230 Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
3
2.2 SAE Standard:
AMS 5665 Nickel Alloy Corrosion and Heat Resistant Bars, Forgings and Rings
4
2.3 Japanese Industrial Standards:
JIS K 2242 Heat Treating Oil
JIS K 6753 Di-2-ethylhexyl Phthalate
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 July 1, 2016Dec. 1, 2021. Published July 2016January 2022. Originally approved in 1999. Last previous edition approved in 20112016 as D6482
– 06 (2011).(2016). DOI: 10.1520/D6482-06R16.10.1520/D6482-21.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
4
Available from Japanese Standards Organization (JSA), 4-1-24 Akasaka Minato-Ku, Tokyo, 107-8440, Japan, http://www.jsa.or.jp.
*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 ----------------------
D6482 − 21
5
2.4 Wolfson Engineering Group:
Wolfson Engineering Group Specification Laboratory Tests for Assessing the Cooling Curve of Industrial Quenching Media
6
2.5 ASTM Adjuncts:
ADJD6300 D2PP, Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 For definitions of terms used in this test method, refer to Terminology D4175.
3.1.2 aqueous polymer quenchant—quenchant, n—an aqueous solution containing a water soluble polymer; typically including
7
poly(alkylene glycol), poly(ethyl oxazoline), poly(solium acrylate) and poly(vinyl pyrrolidone) (1, 2)). . The quenchant solution
also typically contains additives for corrosion and foam control, if needed. Quench severity of aqueous polymer quenchants is
dependent on concentration and molecular weight of the specific polymer being evaluated, quenchant temperature, and agitation
rate as shown in Figs. 1-3, respectively.
3.1.3 cooling curve—curve, n—a graphical representation of the cooling time (t)-temperature (T) response of the probe (see 7.3).
An example is illustrated in Fig. 4A.
3.1.4 cooling curve analys
...