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ASTM B528-12

(Test Method)

Standard Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens

Standard Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens

SIGNIFICANCE AND USE
4.1 This test method is used to measure the strength of sintered, including post-treated, specimens. Transverse rupture strength is not a design value. For many sintered materials, transverse rupture strength is approximately twice the ultimate tensile strength.
SCOPE
1.1 This test method covers determination of the transverse rupture strength of sintered, including post-treated, powder metallurgy test specimens by subjecting them to a uniformly increasing transverse force under controlled conditions. The term “transverse rupture strength” as used herein, defines the stress, calculated from the flexure formula required to break a specimen as a simple beam supported near the ends and applying the force midway between the fixed line center of the supports.  
1.2 Limitations—The transverse rupture test is only applicable to relatively brittle materials. In cases where a ductile specimen is being tested and the permanent deflection as a result of testing exceeds 0.020 in. (0.50 mm), the test results may be questionable.  
1.3 Test Method B406 should be consulted for determining the transverse rupture strength of cemented carbides.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 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
31-Oct-2012
ICS
77.160 - Powder metallurgy
Technical Committee
B09 - Metal Powders and Metal Powder Products
Drafting Committee
B09.05 - Structural Parts
Current Stage
Ref Project

Relations

Replaces
ASTM B528-10 - Standard Test Method for Transverse Rupture Strength of Metal Powder Specimens
Effective Date
01-Nov-2012
Referred By
ASTM B925-15(2022) - Standard Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens
Effective Date
01-Nov-2012
Referred By
ASTM B895-16(2020)e1 - Standard Test Methods for Evaluating the Corrosion Resistance of Stainless Steel Powder Metallurgy (PM) Parts/Specimens by Immersion in a Sodium Chloride Solution
Effective Date
01-Nov-2012
Referred By
ASTM B783-19 - Standard Specification for Materials for Ferrous Powder Metallurgy (PM) Structural Parts
Effective Date
01-Nov-2012
Referred By
ASTM B312-20 - Standard Test Method for Green Strength of Specimens Compacted from Metal Powders
Effective Date
01-Nov-2012

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ASTM B528-12 - Standard Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) SpecimensASTM B528-12 - Standard Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens
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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: B528 − 12
StandardTest Method for
Transverse Rupture Strength of Powder Metallurgy (PM)
1
Specimens
This standard is issued under the fixed designation B528; 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* pacted from Metal Powders
B406 Test Method for Transverse Rupture Strength of Ce-
1.1 This test method covers determination of the transverse
mented Carbides
rupture strength of sintered, including post-treated, powder
B528 Test Method for Transverse Rupture Strength of Pow-
metallurgy test specimens by subjecting them to a uniformly
der Metallurgy (PM) Specimens
increasing transverse force under controlled conditions. The
B925 Practices for Production and Preparation of Powder
term “transverse rupture strength” as used herein, defines the
Metallurgy (PM) Test Specimens
stress, calculated from the flexure formula required to break a
E691 Practice for Conducting an Interlaboratory Study to
specimen as a simple beam supported near the ends and
Determine the Precision of a Test Method
applying the force midway between the fixed line center of the
supports.
3. Terminology
1.2 Limitations— The transverse rupture test is only appli-
3.1 Definitions—For definitions of terms in this test method,
cable to relatively brittle materials. In cases where a ductile
see Terminology B243.
specimen is being tested and the permanent deflection as a
result of testing exceeds 0.020 in. (0.50 mm), the test results
4. Significance and Use
may be questionable.
4.1 This test method is used to measure the strength of
1.3 Test Method B406 should be consulted for determining
sintered, including post-treated, specimens. Transverse rupture
the transverse rupture strength of cemented carbides.
strength is not a design value. For many sintered materials,
1.4 The values stated in inch-pound units are to be regarded
transverse rupture strength is approximately twice the ultimate
as standard. The values given in parentheses are mathematical
tensile strength.
conversions to SI units that are provided for information only
and are not considered standard. 5. Apparatus
1.5 This standard does not purport to address all of the
5.1 Micrometer, capable of measuring with a resolution of
safety concerns, if any, associated with its use. It is the
0.0001 in. (0.002 mm).
responsibility of the user of this standard to establish appro-
5.2 Transverse Rupture Strength Fixture,asshowninFig.1.
priate safety and health practices and determine the applica-
5.3 Compression Testing Machine, readable to within 0.1 %
bility of regulatory limitations prior to use.
of full scale reading. Use the lowest testing range that can
provide a measurable result.
2. Referenced Documents
2
2.1 ASTM Standards:
6. Test Specimen
B243 Terminology of Powder Metallurgy
6.1 The thin test specimen shall have the shape and dimen-
B312 Test Method for Green Strength of Specimens Com-
sions shown in the figure titled PM Transverse Rupture
Strength Test Specimen of Practices B925.
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal
7. Procedure
Powders and Metal Powder Products and is the direct responsibility of Subcommit-
tee B09.05 on Structural Parts.
7.1 Prepare test specimens by pressing and sintering using
Current edition approved Nov. 1, 2012. Published November 2012. Originally
tooling shown in the figure titled Transverse Rupture Test
approved in 1970. Last previous edition approved in 2010 as B528 – 10. DOI:
10.1520/B0528-12.
Specimen, Typical Laboratory Tooling of Practices B925,or
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
machine from finished parts. Measure the width and thickness
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
of the specimens to the nearest 0.001 in. (0.02 mm) with a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. micrometer.
*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 ----------------------
B528 − 12
NOTE 1—This fixture is used in Test Method B312.
FIG. 1 Transverse Rupture Test Fixture
7.2 Locatethespecimeninthetransverserupturetestfixture 9. Report
perpendicular to the supporting rods.Apply compressive force
9.1 Report the transverse rupture strength in pounds-force
parallel to the pressing direction of the specimen at a no-load
per square inch (megapascals) to the nearest 1000 psi (10
crosshead speed of not greater than 0.2 in. (
...

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: B528 − 10 B528 − 12
Standard Test Method for
Transverse Rupture Strength of Powder Metallurgy (PM)
1
Specimens
This standard is issued under the fixed designation B528; 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 covers determination of the transverse rupture strength of sintered, including post-treated, powder
metallurgy test specimens by subjecting them to a uniformly increasing transverse force under controlled conditions. The term
“transverse rupture strength” as used herein, defines the stress, calculated from the flexure formula required to break a specimen
as a simple beam supported near the ends and applying the force midway between the fixed line center of the supports.
1.2 Limitations— The transverse rupture test is only applicable to relatively brittle materials. In cases where a ductile specimen
is being tested and the permanent deflection as a result of testing exceeds 0.020 in. (0.50 mm), the test results may be questionable.
1.3 Test Method B406 should be consulted for determining the transverse rupture strength of cemented carbides.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 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:
B243 Terminology of Powder Metallurgy
B312 Test Method for Green Strength of Specimens Compacted from Metal Powders
B406 Test Method for Transverse Rupture Strength of Cemented Carbides
B528 Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens
B925 Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions—For definitions of terms in this test method, see Terminology B243.
4. Significance and Use
4.1 This test method is used to measure the strength of sintered, including post-treated, specimens. Transverse rupture strength
is not a design value. For many sintered materials, transverse rupture strength is approximately twice the ultimate tensile strength.
5. Apparatus
5.1 Micrometer, capable of measuring with a resolution of 0.0001 in. (0.002 mm).
5.2 Transverse Rupture Strength Fixture, as shown in Fig. 1.
5.3 Compression Testing Machine, readable to within 0.1 % of full scale reading. Use the lowest testing range that can provide
a measurable result.
1
This test method is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of Subcommittee
B09.05 on Structural Parts.
Current edition approved June 1, 2010Nov. 1, 2012. Published September 2010November 2012. Originally approved in 1970. Last previous edition approved in 20052010
as B528 – 05.B528 – 10. DOI: 10.1520/B0528-10.10.1520/B0528-12.
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.
*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 ----------------------
B528 − 12
NOTE 1—This fixture is used in Test Method B312.
FIG. 1 Transverse Rupture Test Fixture
6. Test Specimen
6.1 The thin test specimen shall have the shape and dimensions shown in the figure titled PM Transverse Rupture Strength Test
Specimen of Practices B925.
7. Procedure
7.1 Prepare test specimens by pressing and sintering using tooling shown in the figure titled Transverse Rupture Test Specimen,
Typical Laboratory Tooling of Practices B925, or machine from finished parts. Measure the width and thickness of the specimens
to the nearest 0.001 in. (0.02 mm) with a micrometer.
7.2 Locate the
...

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5.4 The results from these test methods may be used for quality control or compliance purposes.
SCOPE
1.1 This standard describes three related test methods that cover the measurement of physical properties of oil-impregnated powder metallurgy products.  
1.1.1 Determination of the volume percent of oil contained in the material.  
1.1.2 Determination of the efficiency of the oil-impregnation process.  
1.1.3 Determination of the percent surface-connected porosity by oil impregnation.  
1.2 Units—With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the long-standing industry practice, the values in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 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.  
1.4 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.

  • Standard
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    English language
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  • Standard
    6 pages
    English language
    sale 15% off