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ASTM A345-09

(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, and A876.
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 following safety hazards caveat pertains only to the test methods portion, Section 13, of this specification. 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-2009
ICS
77.140.50 - Flat steel products and semi-products
Technical Committee
A06 - Magnetic Properties
Drafting Committee
A06.02 - Material Specifications
Current Stage
Ref Project

Relations

Replaces
ASTM A345-04 - Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
Effective Date
01-Nov-2009
Replaced By
ASTM A345-14 - Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
Effective Date
01-May-2014
Referred By
ASTM A876-17e1 - Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types
Effective Date
01-Nov-2009
Referred By
ASTM A976-18 - Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
Effective Date
01-Nov-2009

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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: A345 −09
StandardSpecification 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 Ballistic Test Methods
A343/A343M Test Method for Alternating-Current Mag-
1.1 This specification covers general procedures for speci-
netic Properties of Materials at Power Frequencies Using
fying requirements in the procurement and delivery of flat-
Wattmeter-Ammeter-Voltmeter Method and 25-cm Ep-
rolled electrical steels for magnetic applications. When an
stein Test Frame
applicable individual specification does not exist, this specifi-
A348/A348M TestMethodforAlternatingCurrentMagnetic
cation enables the user to order a suitable material to be
Properties of Materials Using the Wattmeter-Ammeter-
supplied under controlled conditions with respect to magnetic
Voltmeter Method, 100 to 10a??000 Hz and 25-cm Ep-
quality, sampling, testing, packaging, and so forth, by specify-
stein Frame
ing certain requirements on the purchase order and citing this
A596/A596M Test Method for Direct-Current Magnetic
specification.
Properties of Materials Using the Ballistic Method and
1.2 Individual ASTM electrical steel specifications that are
Ring Specimens
in conformity with this specification are Specifications A677,
A664 Practice for Identification of Standard Electrical Steel
A683, A726, A840, and A876.
Grades in ASTM Specifications
NOTE 1—For more information on other standards associated with this
A677 Specification for Nonoriented Electrical Steel Fully
specification, refer to the following: Test Methods A341/A341M, A343/
Processed Types
A343M, A348/A348M, A596/A596M, A712, A717/A717M, A719/
A719M, A720/A720M, A721/A721M, A773/A773M, A804/A804M, A683 Specification for Nonoriented Electrical Steel, Semi-
A889/A889M, A937/A937M, A971/A971M, and Practice A664.
processed Types
1.3 The following safety hazards caveat pertains only to the A700 Practices for Packaging, Marking, and Loading Meth-
test methods portion, Section 13, of this specification. This
ods for Steel Products for Shipment
standarddoesnotpurporttoaddressallofthesafetyconcerns, A712 Test Method for Electrical Resistivity of Soft Mag-
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
netic Alloys
of this standard to establish appropriate safety and health
A717/A717M TestMethodforSurfaceInsulationResistivity
practices and determine the applicability of regulatory limita-
of Single-Strip Specimens
tions prior to use.
A719/A719M Test Method for Lamination Factor of Mag-
netic Materials
2. Referenced Documents
A720/A720M Test Method for Ductility of Nonoriented
2
Electrical Steel
2.1 ASTM Standards:
A721/A721M Test Method for Ductility of Oriented Electri-
A34/A34M Practice for Sampling and Procurement Testing
cal Steel
of Magnetic Materials
A726 Specification for Cold-Rolled Magnetic Lamination
A340 Terminology of Symbols and Definitions Relating to
Quality Steel, Semiprocessed Types
Magnetic Testing
A773/A773M Test Method for dc Magnetic Properties of
A341/A341M Test Method for Direct Current Magnetic
Materials Using Ring and Permeameter Procedures with
Properties of Materials Using D-C Permeameters and the
dc Electronic Hysteresigraphs
A804/A804M Test Methods for Alternating-Current Mag-
1
netic Properties of Materials at Power Frequencies Using
This specification is under the jurisdiction of ASTM Committee A06 on
Magnetic Properties and is the direct responsibility of Subcommittee A06.02 on
Sheet-Type Test Specimens
Material Specifications.
A840 Specification for Fully Processed Magnetic Lamina-
Current edition approved Nov. 1, 2009. Published December 2009. Originally
3
tion Steel (Withdrawn 2011)
approved in 1949 to replace A310. Last previous edition approved in 2004 as
A345–04. DOI: 10.1520/A0345-09.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A345 − 09
A876 Specification for Flat-Rolled, Grain-Oriented, Silicon- conditions of manufacture shall be negotiated between the
Iron, Electrical Steel, Fully Processed Types producer and the user.
A889/A889M Test Method for Alternating-Current
...

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:A345–04 Designation: A345 – 09
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/A683MA683, A726, A840, and A876.
NOTE 1—For more information on proceduresother 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, A971A971/A971M, and Practice A664.
1.3 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section13,ofthisspecification.Thisstandard
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
standardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
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 Materials Using D-C Permeameters and the BallisticTest
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 forAlternating 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/A683M683 Specification for Nonoriented Electrical Steel, Semiprocessed Types
A700 Practices 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
A721/A721M Test Method for Ductility of Oriented Electrical Steel
A726 Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types
A773/A773M TestMethodfordcMagneticPropertiesofMaterialsUsingRingandPermeameterProcedureswithdcElectronic
Hysteresigraphs
1
ThisspecificationisunderthejurisdictionofASTMCommitteeA06onMagneticPropertiesandisthedirectresponsibilityofSubcommitteeA06.02onMaterialsMaterial
Specifications.
Current edition approved Nov. 1, 2004.2009. Published November 2004.December 2009. Originally approved in 1949 to replace A310. Last previous edition approved
in 19982004 as A345–98.A345–04. DOI: 10.1520/A0345-049.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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 ----------------------
A345 – 09
A804/A804M Test Methods forAlternating-Current Magnetic Properties of Materials at Power Frequencies Using Sheet-Type
Test Specimens
A840 Specification for Fully Processed Magnetic Lamination Steel
A876 Specification for Flat-Rolled, Grain-Ori
...

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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.  
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ABSTRACT
This specification covers the standard requirements for flat-rolled nonoriented fully processed electrical steel intended primarily for commercial power frequency applications in magnetic devices. These electrical steels are low-carbon, silicon iron, or silicon-aluminum-iron alloys that may be made by basic-oxygen, electric-furnace, or other steelmaking practice. Desirable core-loss and permeability characteristics are developed during mill processing, so additional heat treatment is usually not required. The grades contained in this specification have thicknesses of 0.014 in. (0. 36 mm), 0.0185 in. (0.47 mm) and 0.0250 in. (0.64 mm). For a given thickness there are from 7 to 9 types based on the maximum value of core loss measured at 60 Hz and 15 kG (1.5 T) using the Epstein test method. Test methods to determine the required magnetic and mechanical properties are specified. Other typical magnetic and physical properties are listed for reference.
SCOPE
1.1 This specification covers the detailed requirements to which flat-rolled nonoriented fully processed electrical steel shall conform.  
1.2 This steel is produced to specified maximum core-loss values and is intended primarily for commercial power frequency (50 and 60 Hz) applications in magnetic devices. Desirable core-loss and permeability characteristics are developed during mill processing, so additional heat treatment by the user is usually not necessary.  
1.3 These nonoriented fully processed electrical steels are low-carbon, silicon-iron, or silicon-aluminum-iron alloys containing up to about 3.5 % silicon and a small amount of aluminum.  
1.4 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.

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ASTM
ASTM A683-16(Specification)
Standard Specification for Nonoriented Electrical Steel, Semiprocessed Types

ABSTRACT
This specification covers the standard requirements for flat-rolled, nonoriented semiprocessed electrical steel intended primarily for commercial power frequency applications in magnetic devices. These electrical steels are low carbon, silicon-iron, or silicon-aluminum-iron alloys, and are classified according to core-loss. Unlike the fully processed electrical steels covered by ASTM A 677, the electrical steels in this specification require heat treatment by the user to develop the specified magnetic properties. The steels covered by this specification have a thickness of either 0.0185 in. (0.47 mm) or 0.025 in. (0.64 mm). For each thickness there are four core loss types. The core loss shall be determined following the use of a quality evaluation anneal listed in the specification. The core loss is determined using the Epstein test method at a test frequency of 60 Hz and a maximum flux density of 15 kG (1.5 T). Test methods to determine other required physical and mechanical properties are listed. Other typical magnetic and physical properties are listed for reference.
SCOPE
1.1 This specification covers the detailed requirements to which flat-rolled, nonoriented semiprocessed electrical steel shall conform.  
1.2 This steel is produced to specified maximum core-loss values and is intended primarily for commercial power frequency (50 and 60 Hz) applications in magnetic devices. Desirable core-loss and permeability characteristics are developed through heat treatment by the user.  
1.3 These nonoriented, semiprocessed electrical steels are low carbon, silicon-iron or silicon-aluminum-iron alloys containing up to about 2.5 % silicon and less than 1 % aluminum.  
1.4 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.

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  • Technical specification
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ASTM
ASTM A1083/A1083M-23(Specification)
Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, Produced by Twin-Roll Casting Process

ABSTRACT
This specification covers cold-rolled, carbon, structural, and high-strength low-alloy, in coils and cut lengths produced by the twin-roll casting process. Cold-rolled steel sheet is available in the following designations: commercial steel, drawing steel, structural steel, and high-strength low-alloy steel. Sheet steel grades defined by this specification are suitable for welding if appropriate welding conditions are selected. For certain welding processes, if more restrictive composition limits are desirable, they shall be specified at the time of inquiry and confirmed at the time of ordering. The material shall be capable of being bent, at room temperature, in any direction through 180° flat on itself without cracking on the outside of the bent portion. Two tension tests shall be made from each heat or from each 50 tons [45,000 kg]. Yield strength shall be determined by either the 0.2 % offset method or the 0.5 % extension under load method unless otherwise specified.
SCOPE
1.1 This specification covers cold-rolled, carbon, structural, and high-strength low-alloy, in coils and cut lengths produced by the twin-roll casting process.  
1.2 Cold rolled steel sheet produced by the twin-roll casting process is available in the designations as listed in 4.1.  
1.3 This specification does not apply to steel strip as described in Specification A109/A109M.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

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  • Technical specification
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