ASTM A345-19
(Specification)Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
ABSTRACT
This specification concerns general procedures for specifying requirements of flat-rolled electrical steels for magnetic applications. This specification is to be used when the material in question is not covered by an ASTM material specification. The specification does not contain requirements but instead lists physical properties, ordering information and other attributes that should be considered when purchasing the material. All ASTM electrical steel specifications are in conformity to this specification.
SCOPE
1.1 This specification covers general procedures for specifying requirements in the procurement and delivery of flat-rolled electrical steels for magnetic applications. When an applicable individual specification does not exist, this specification enables the user to order a suitable material to be supplied under controlled conditions with respect to magnetic quality, sampling, testing, packaging, and so forth, by specifying certain requirements on the purchase order and citing this specification.
1.2 Individual ASTM electrical steel specifications that are in conformity with this specification are Specifications A677, A683, A726, A840, A876, and A1086.
Note 1: For more information on other standards associated with this specification, refer to the following: Test Methods A341/A341M, A343/A343M, A348/A348M, A596/A596M, A712, A717/A717M, A719/A719M, A720/A720M, A721/A721M, A773/A773M, A804/A804M, A889/A889M, A937/A937M, A971/A971M, and Practice A664.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered 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, 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
Relations
Buy Standard
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: A345 −19
Standard Specification for
1
Flat-Rolled Electrical Steels for Magnetic Applications
This standard is issued under the fixed designation A345; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers general procedures for speci-
A34/A34M Practice for Sampling and Procurement Testing
fying requirements in the procurement and delivery of flat-
of Magnetic Materials
rolled electrical steels for magnetic applications. When an
A340 Terminology of Symbols and Definitions Relating to
applicable individual specification does not exist, this specifi-
Magnetic Testing
cation enables the user to order a suitable material to be
A341/A341M Test Method for Direct Current Magnetic
supplied under controlled conditions with respect to magnetic
Properties of Soft Magnetic Materials Using D-C Per-
quality, sampling, testing, packaging, and so forth, by specify-
meameters and the Point by Point (Ballistic)Test Methods
ing certain requirements on the purchase order and citing this
A343/A343M Test Method for Alternating-Current Mag-
specification.
netic Properties of Materials at Power Frequencies Using
Wattmeter-Ammeter-Voltmeter Method and 25-cm Ep-
1.2 Individual ASTM electrical steel specifications that are
stein Test Frame
in conformity with this specification are Specifications A677,
A348/A348M TestMethodforAlternatingCurrentMagnetic
A683, A726, A840, A876, and A1086.
Properties of Materials Using the Wattmeter-Ammeter-
NOTE 1—For more information on other standards associated with this
Voltmeter Method, 100 to 10 000 Hz and 25-cm Epstein
specification, refer to the following: Test Methods A341/A341M, A343/
Frame
A343M, A348/A348M, A596/A596M, A712, A717/A717M, A719/
A596/A596M Test Method for Direct-Current Magnetic
A719M, A720/A720M, A721/A721M, A773/A773M, A804/A804M,
A889/A889M, A937/A937M, A971/A971M, and Practice A664.
Properties of Materials Using the Ballistic Method and
Ring Specimens
1.3 The values stated in SI units are to be regarded as
A664 Practice for Identification of Standard Electrical Steel
standard. The values given in parentheses are mathematical
Grades in ASTM Specifications
conversions to customary (cgs-emu and inch-pound) units
A677 Specification for Nonoriented Electrical Steel Fully
whichareprovidedforinformationonlyandarenotconsidered
Processed Types
standard.
A683 Specification for Nonoriented Electrical Steel, Semi-
processed Types
1.4 This standard does not purport to address all of the
A700 Guide for Packaging, Marking, and Loading Methods
safety concerns, if any, associated with its use. It is the
for Steel Products for Shipment
responsibility of the user of this standard to establish appro-
A712 Test Method for Electrical Resistivity of Soft Mag-
priate safety, health, and environmental practices and deter-
netic Alloys
mine the applicability of regulatory limitations prior to use.
A717/A717M TestMethodforSurfaceInsulationResistivity
1.5 This international standard was developed in accor-
of Single-Strip Specimens
dance with internationally recognized principles on standard-
A719/A719M Test Method for Lamination Factor of Mag-
ization established in the Decision on Principles for the
netic Materials
Development of International Standards, Guides and Recom-
A720/A720M Test Method for Ductility of Nonoriented
mendations issued by the World Trade Organization Technical
Electrical Steel
Barriers to Trade (TBT) Committee.
A721/A721M Test Method for Ductility of Oriented Electri-
cal Steel
A726 Specification for Cold-Rolled Magnetic Lamination
1
This specification is under the jurisdiction of ASTM Committee A06 on
Magnetic Properties and is the direct responsibility of Subcommittee A06.02 on
2
Material Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2019. Published April 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1949 to replace A310. Last previous edition approved in 2014 as Standards volume information, refer to the standard’s Document Summary page on
A345 – 14. DOI: 10.1520/A0345-19. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A345 − 19
Quality Steel, Semiprocessed Types
...
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: A345 − 14 A345 − 19
Standard Specification for
1
Flat-Rolled Electrical Steels for Magnetic Applications
This standard is issued under the fixed designation A345; 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 specification covers general procedures for specifying requirements in the procurement and delivery of flat-rolled
electrical steels for magnetic applications. When an applicable individual specification does not exist, this specification enables the
user to order a suitable material to be supplied under controlled conditions with respect to magnetic quality, sampling, testing,
packaging, and so forth, by specifying certain requirements on the purchase order and citing this specification.
1.2 Individual ASTM electrical steel specifications that are in conformity with this specification are Specifications A677, A683,
A726, A840, A876, and A1086.
NOTE 1—For more information on other standards associated with this specification, refer to the following: Test Methods A341/A341M, A343/A343M,
A348/A348M, A596/A596M, A712, A717/A717M, A719/A719M, A720/A720M, A721/A721M, A773/A773M, A804/A804M, A889/A889M, A937/
A937M, A971/A971M, and Practice A664.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered 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 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:
A34/A34M Practice for Sampling and Procurement Testing of Magnetic Materials
A340 Terminology of Symbols and Definitions Relating to Magnetic Testing
A341/A341M Test Method for Direct Current Magnetic Properties of Soft Magnetic Materials Using D-C Permeameters and the
Point by Point (Ballistic) Test Methods
A343/A343M Test Method for Alternating-Current Magnetic Properties of Materials at Power Frequencies Using Wattmeter-
Ammeter-Voltmeter Method and 25-cm Epstein Test Frame
A348/A348M Test Method for Alternating Current Magnetic Properties of Materials Using the Wattmeter-Ammeter-Voltmeter
Method, 100 to 10 000 Hz and 25-cm Epstein Frame
A596/A596M Test Method for Direct-Current Magnetic Properties of Materials Using the Ballistic Method and Ring Specimens
A664 Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications
A677 Specification for Nonoriented Electrical Steel Fully Processed Types
A683 Specification for Nonoriented Electrical Steel, Semiprocessed Types
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A712 Test Method for Electrical Resistivity of Soft Magnetic Alloys
A717/A717M Test Method for Surface Insulation Resistivity of Single-Strip Specimens
A719/A719M Test Method for Lamination Factor of Magnetic Materials
A720/A720M Test Method for Ductility of Nonoriented Electrical Steel
1
This specification is under the jurisdiction of ASTM Committee A06 on Magnetic Properties and is the direct responsibility of Subcommittee A06.02 on Material
Specifications.
Current edition approved May 1, 2014April 1, 2019. Published May 2014April 2019. Originally approved in 1949 to replace A310. Last previous edition approved in
20092014 as A345A345 – 14.–09. DOI: 10.1520/A0345-14.10.1520/A0345-19.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 -------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.