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ASTM A867-03(2013)

(Specification)

Standard Specification for Iron-Silicon Relay Steels

Standard Specification for Iron-Silicon Relay Steels

ABSTRACT
This specification covers wrought iron-silicon (Fe-Si) steels that are generally used in the manufacture of electromechanical devices, such as relays and solenoids, requiring higher electrical resistivity, higher permeability, and lower coercivity and residual magnetism than provided by either carbon steels or soft magnetic low-carbon irons. The steels covered in this specification are Steel type2 1, 1F, 2, 2F, 3. This specification covers steels in the form and condition required for fabrication into parts. The chemical composition requirements shall conform in carbon, manganese, silicon, phosphorus, sulfur, aluminum, and iron. Available forms and conditions are forging billet, hot-rolled product, cold-finished bars, strip, and wire. The material shall undergo heat treatment before performing conventional dc magnetic testing and shall conform to the required coercive force and coercive field strength.
SCOPE
1.1 This specification covers wrought iron-silicon (Fe-Si) steels that are generally used in the manufacture of electromechanical devices, such as relays and solenoids, requiring higher electrical resistivity, higher permeability, and lower coercivity and residual magnetism than provided by either carbon steels or soft magnetic low-carbon irons. The steels covered in this specification are:    
Steel Type  
Nominal Composition  
1  
1.1 % Si-Fe  
1F  
1.1 % Si-Fe free machining  
2  
2.3 % Si-Fe  
2F  
2.3 % Si-Fe free machining  
3  
4.0 % Si-Fe
1.2 This specification covers steels in the form and condition required for fabrication into parts. The fabricated parts typically require a final heat treatment to obtain the desired magnetic performance. The term mill annealed as used in this specification applies to a heat treatment, typically applied by the producer, intended to improve formability. The mill anneal does not provide the optimum magnetic performance and is not intended to replace the need for the finish annealing of parts.  
1.3 This specification covers steels in the form of forging billets, hot-rolled bar and strip, cold-finished bar, wire, and cold-rolled strip in thicknesses up to 0.250 in. (6.35 mm).  
1.4 This specification does not cover electrical sheet steels used in transformer and motor laminations.  
1.5 This specification does not cover powder metallurgy materials capable of being processed into magnetic core components having similar silicon contents.  
1.6 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.

General Information

Status
Historical
Publication Date
30-Apr-2013
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 A867-03(2008) - Standard Specification for Iron-Silicon Relay Steels
Effective Date
01-May-2013

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ASTM A867-03(2013) - Standard Specification for Iron-Silicon Relay SteelsASTM A867-03(2013) - Standard Specification for Iron-Silicon Relay Steels
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ASTM A867-03(2013) - Standard Specification for Iron-Silicon Relay Steels
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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:A867 −03 (Reapproved 2013)
Standard Specification for
1
Iron-Silicon Relay Steels
This standard is issued under the fixed designation A867; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers wrought iron-silicon (Fe-Si)
A34/A34MPractice for Sampling and Procurement Testing
steels that are generally used in the manufacture of electrome-
of Magnetic Materials
chanicaldevices,suchasrelaysandsolenoids,requiringhigher
A341/A341MTest Method for Direct Current Magnetic
electrical resistivity, higher permeability, and lower coercivity
Properties of Materials Using D-C Permeameters and the
and residual magnetism than provided by either carbon steels
Ballistic Test Methods
or soft magnetic low-carbon irons. The steels covered in this
A596/A596MTest Method for Direct-Current Magnetic
specification are:
Properties of Materials Using the Ballistic Method and
Steel Type Nominal Composition
Ring Specimens
1 1.1 % Si-Fe
A773/A773MTest Method for dc Magnetic Properties of
1F 1.1 % Si-Fe free machining
Materials Using Ring and Permeameter Procedures with
2 2.3 % Si-Fe
dc Electronic Hysteresigraphs
2F 2.3 % Si-Fe free machining
3
3 4.0 % Si-Fe
2.2 International Electrotechnical Commission Standard:
IEC 60404-7 Magnetic materials. Part 7: Method of
1.2 This specification covers steels in the form and condi-
measurementofthecoercivityofmagneticmaterialsinan
tion required for fabrication into parts. The fabricated parts
open magnetic circuit
typically require a final heat treatment to obtain the desired
magnetic performance. The term mill annealed as used in this
3. Ordering Information
specification applies to a heat treatment, typically applied by
3.1 Orders to this specification shall include as much of the
the producer, intended to improve formability.The mill anneal
following information as is required to describe the desired
doesnotprovidetheoptimummagneticperformanceandisnot
steel:
intended to replace the need for the finish annealing of parts.
3.1.1 ASTM Specification number and steel type,
1.3 This specification covers steels in the form of forging
3.1.2 Dimensions and tolerances. The tolerances are to be
billets, hot-rolled bar and strip, cold-finished bar, wire, and
mutuallyagreeduponbetweentheconsumerandtheproducer,
cold-rolled strip in thicknesses up to 0.250 in. (6.35 mm).
3.1.3 Quantity (weight or number of pieces),
3.1.4 Form and condition,
1.4 This specification does not cover electrical sheet steels
3.1.5 Magnetic property requirements if they are otherwise
used in transformer and motor laminations.
than stated herein,
1.5 This specification does not cover powder metallurgy
3.1.6 Certification of chemical analysis or magnetic prop-
materials capable of being processed into magnetic core
erty evaluation, or both,
components having similar silicon contents.
3.1.7 Marking and packaging,
3.1.8 End Use—Whenever possible the consumer should
1.6 Thevaluesstatedininch-poundunitsaretoberegarded
specifywhethertheproductwillbemachined,blankedintoflat
as standard. The values given in parentheses are mathematical
pieces, blanked and formed, or deep drawn to shape. This
conversions to SI units that are provided for information only
information will help the producer provide the most suitable
and are not considered standard.
product for the consumer’s fabrication practice, and
1 2
This specification is under the jurisdiction of ASTM Committee A06 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Magnetic Properties and is the direct responsibility of Subcommittee A06.02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Material Specifications. Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedMay1,2013.PublishedJuly2013.Originallyapproved the ASTM website.
3
in 1986. Last previous edition approved in 2008 as A867–03 (2008). DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/A0867-03R13. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A867−03 (2013)
3.1.9 Exceptions to this specification or special require- before measurement of the coercive field strength, two differ-
ments. ent sets of requirements are necessary, one for ring and
permeameter testing and one for coercimeter testing.
4. Chemical Composition
6.2 Test Specimen Heat T
...

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ABSTRACT
This specification covers wrought iron-silicon (Fe-Si) relay steels that are generally used in the manufacture of electromechanical devices, such as relays and solenoids, requiring higher electrical resistivity, higher permeability, and lower coercivity and residual magnetism than provided by either carbon steels or soft magnetic low-carbon irons. Available forms and conditions are forging billet, hot-rolled product, cold-finished bars, strip, and wire. These steels are not the same as the flat-rolled non-oriented or grain oriented iron-silicon electrical steels covered by ASTM Specifications A 677, A 683 and A 876. The steels covered in this specification have nominal silicon contents of 1.1, 2.3 and 4.0 % Si. Both the 1.1 and 2.3 % Si types are also available in an enhanced machinability composition. Along with chemical composition, steels produced to this specification must meet a specified maximum value of coercive field strength when heat treated according to this specification. Appendices are given containing typical magnetic, physical and mechanical properties and heat treatment.
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1.1 This specification covers wrought iron-silicon (Fe-Si) steels that are generally used in the manufacture of electromechanical devices, such as relays and solenoids, requiring higher electrical resistivity, higher permeability, and lower coercivity and residual magnetism than provided by either carbon steels or soft magnetic low-carbon irons. The steels covered in this specification are:    
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3  
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SCOPE
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SCOPE
1.1 This specification covers the detailed requirements to which the specified grades of flat-rolled, grain-oriented, fully processed electrical steels shall conform. These steels are used primarily in transformer cores operating at moderate to high magnetic flux densities at commercial power frequencies (50 and 60 Hz).  
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1.3 The electrical-steel grades described in this specification include (1) conventional grain-oriented electrical steel tested at 1.5 T (15 kG) in accordance with Test Method A343/A343M, (2) conventional grain-oriented electrical steel tested at 1.7 T (17 kG) in accordance with Test Method A343/A343M, (3) high-permeability grain-oriented electrical steel tested at 1.7 T (17 kG) in accordance with Test Method A343/A343M, and (4) laser-scribed high-permeability grain-oriented electrical steel tested at 1.7 T (17 kG) in accordance with Test Methods A804/A804M.  
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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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Standard Specification for Nonoriented Electrical Steel Fully Processed Types

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.  
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ABSTRACT
This specification covers hot-rolled carbon steel sheet for pressure vessels involving fusion welding or brazing. Tensile and yield strengths shall be determined after a tension test of the sheets. The material shall be furnished without removing the hot-rolled oxide or scale. When required, the material may be specified to be pickled or blast cleaned. When specified to be pickled or blast cleaned, the material shall be furnished oiled. When required, pickled or blast-cleaned material may be specified to be furnished dry.
SCOPE
1.1 This specification2 covers hot-rolled carbon steel sheet for pressure vessels involving fusion welding or brazing. Welding and brazing technique is of fundamental importance and shall be in accordance with commercial practices.  
1.2 The following grades are included in this specification:    
Mechanical Requirements  
Yield Strength, min  
Tensile Strength, min  
Grade  
ksi  
MPa  
ksi  
MPa  
A  
25  
170  
45  
310  
B  
30  
205  
50  
345  
C  
33  
230  
55  
380  
D  
35  
240  
60  
415  
E  
38  
260  
65  
450  
F  
42  
290  
70  
485  
G  
45  
310  
75  
515  
H  
45  
310  
75  
515  
1.3 Hot-rolled carbon steel sheet is generally furnished in cut lengths and to decimal thickness only. Coils may be furnished, provided tension test specimens are taken to represent the middle of the slab as required by 6.1.3. The purchaser should recognize this may require cutting the coils to obtain test samples and results in half-size coils. The sheet is furnished to the following size limits:    
Width, in. [mm]    
Thickness, in. [mm]  
Over 12 [Over 300]    
0.270 to 0.230 [7.0 to 6.0]  
sheet (coils only)  
Under 0.230 to 0.057 [6.0 to 1.5]  
sheet  
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.  
1.5 Tolerances are found in General Requirements Specifications A568/A568M and A635/A635M. The appropriate General Requirements specification is applied based on the thickness and width of the product ordered.  
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.

  • Technical specification
    4 pages
    English language
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  • Technical specification
    4 pages
    English language
    sale 15% off