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ASTM A753-08(2013)

(Specification)

Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)

Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)

ABSTRACT
This specification covers commonly used wrought nickel-iron soft magnetic alloys produced or supplied expressly for use in magnetic cores and other parts requiring high magnetic permeability, high electrical resistivity, low coercive field strength, and low core loss. Four specific alloy types are covered such as Alloy Type 1, 2, 3, and 4. Alloy Type 2 in thin-strip form is available two different grades. Grade 1 is semi-isotropic and is recommended for use in transformer laminations. Grade 2 is isotropic and is recommended for use inn rotating machinery laminations. These materials are capable of being produced in a wide variety of forms and conditions such as forging billet, hot-rolled plate, strip, and bar, cold-finished bars, cold-rolled sheep and strip, shaped bar and wire. The alloys shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, cobalt, copper, and iron. Dc magnetic testing shall be the only magnetic test methods used for all product forma and sizes other than thin strip and sheet measuring magnetic permeability and coercive field strength. The physical properties of annealed alloy such as electrical resistivity, saturation induction, density, Curie temperature and mean linear coefficient of expansion shall be measured. Mechanical properties of cold-rolled hard temper strip such as yiled strength, ultimated tensile strength, elongation,and hardness.
SCOPE
1.1 This specification covers commonly used wrought nickel-iron soft magnetic alloys produced or supplied expressly for use in magnetic cores and other parts requiring high magnetic permeability, high electrical resistivity, low coercive field strength, and low core loss.  
1.2 This specification covers materials supplied by a producer or converter to the form and physical condition desired for fabrication into parts that will later be given a final heat treatment to achieve the desired magnetic characteristics. It covers materials supplied in the form of forging billet; hot-rolled plate, strip, and bar; cold-finished bar; cold-rolled and annealed sheet and strip; shaped bar and wire; and wire.  
1.2.1 This specification does not cover either powder metallurgically produced or cast parts.  
1.2.2 This specification lists requirements for strip products having isotropic or semi-isotropic magnetic properties but does not include requirements for anisotropic or square hysteresis loop alloys or alloys processed to yield flattened hysteresis loops by use of heat treatments in an applied magnetic field.  
1.2.3 This specification does not cover alloys modified by the addition of elements such as sulfur and selenium to enhance machinability.  
1.3 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
77.120.40 - Nickel, chromium and their alloys
Technical Committee
A06 - Magnetic Properties
Drafting Committee
A06.02 - Material Specifications
Current Stage
Ref Project

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ASTM A753-08(2013) - Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)ASTM A753-08(2013) - Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
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ASTM A753-08(2013) - Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
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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:A753 −08 (Reapproved 2013)
Standard Specification for
Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490,
1
K94840, N14076, N14080)
This standard is issued under the fixed designation A753; 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 A340 Terminology of Symbols and Definitions Relating to
Magnetic Testing
1.1 This specification covers commonly used wrought
A341/A341M Test Method for Direct Current Magnetic
nickel-ironsoftmagneticalloysproducedorsuppliedexpressly
Properties of Materials Using D-C Permeameters and the
for use in magnetic cores and other parts requiring high
Ballistic Test Methods
magnetic permeability, high electrical resistivity, low coercive
A480/A480M Specification for General Requirements for
field strength, and low core loss.
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
1.2 This specification covers materials supplied by a pro-
Sheet, and Strip
ducer or converter to the form and physical condition desired
A484/A484M Specification for General Requirements for
for fabrication into parts that will later be given a final heat
Stainless Steel Bars, Billets, and Forgings
treatment to achieve the desired magnetic characteristics. It
A555/A555M Specification for General Requirements for
covers materials supplied in the form of forging billet; hot-
Stainless Steel Wire and Wire Rods
rolled plate, strip, and bar; cold-finished bar; cold-rolled and
A596/A596M Test Method for Direct-Current Magnetic
annealed sheet and strip; shaped bar and wire; and wire.
Properties of Materials Using the Ballistic Method and
1.2.1 This specification does not cover either powder met-
Ring Specimens
allurgically produced or cast parts.
A772/A772M TestMethodforACMagneticPermeabilityof
1.2.2 This specification lists requirements for strip products
Materials Using Sinusoidal Current
havingisotropicorsemi-isotropicmagneticpropertiesbutdoes
A773/A773M Test Method for dc Magnetic Properties of
not include requirements for anisotropic or square hysteresis
Materials Using Ring and Permeameter Procedures with
loop alloys or alloys processed to yield flattened hysteresis
dc Electronic Hysteresigraphs
loops by use of heat treatments in an applied magnetic field.
E527 Practice for Numbering Metals and Alloys in the
1.2.3 This specification does not cover alloys modified by
Unified Numbering System (UNS)
theadditionofelementssuchassulfurandseleniumtoenhance
E1019 Test Methods for Determination of Carbon, Sulfur,
machinability.
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
1.3 The values stated in inch-pound units are to be regarded
Alloys by Various Combustion and Fusion Techniques
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
3. Terminology
and are not considered standard.
3.1 The terms and symbols used in this specification are
defined in Terminology A340.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Classification
A34/A34M Practice for Sampling and Procurement Testing
of Magnetic Materials
4.1 Four specific alloy types are covered in Table 1.
4.2 Alloy Type 2 in thin-strip form (thickness less than or
1
This specification is under the jurisdiction of ASTM Committee A06 on
equal to 0.020 in. (0.51 mm)) is available in two different
Magnetic Properties, and is the direct responsibility of Subcommittee A06.02 on
grades. Grade 1 is semi-isotropic and is recommended for use
Material Specifications.
in transformer laminations. Grade 2 is isotropic and is recom-
CurrenteditionapprovedMay1,2013.PublishedJuly2013.Originallyapproved
mended for use in rotating machinery laminations and mag-
in 1978. Last previous edition approved in 2008 as A753–08. DOI: 10.1520/A0753-
08R13.
netic shielding parts. These grades are the result of different
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mill processing (that is, cold-rolling and annealing) practices
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and cannot be created by changes in the final heat treatment
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. given to the laminations or parts.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A753−08 (2013)
TABLE 1 Specific Alloy Types
6.2 Determination of metallic constituents and phosphorus
A B
Alloy Type UNS Number Nickel Range, % shall be by a method(s) acceptable to both producer and user.
1 K94490 43.5 t
...

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ABSTRACT
This specification covers commonly used wrought nickel-iron soft magnetic alloys produced or supplied expressly for use in magnetic cores and other parts requiring high magnetic permeability, high electrical resistivity, low coercive field strength, and low core loss. This specification does not cover material produced by casting or by powder metallurgy techniques. These materials are capable of being produced in a wide variety of forms and conditions such as forging billet, hot-rolled plate, strip, and bar, cold-finished bars, cold-rolled sheep and strip, shaped bar and wire. Four specific alloy types containing nominally 45, 48, 76 and 80 nickel with various other elements are covered by this specification. The alloy chemistry requirements are listed. Magnetic property requirements for the different alloys, product forms and sizes are specified. Typical physical property data and useful heat treatment information are provided in appendices.
SCOPE
1.1 This specification covers commonly used wrought nickel-iron soft magnetic alloys produced or supplied expressly for use in magnetic cores and other parts requiring high magnetic permeability, high electrical resistivity, low coercive field strength, and low core loss.  
1.2 This specification covers materials supplied by a producer or converter to the form and physical condition desired for fabrication into parts that will later be given a final heat treatment to achieve the desired magnetic characteristics. It covers materials supplied in the form of forging billet; hot-rolled plate, strip, and bar; cold-finished bar; cold-rolled and annealed sheet and strip; shaped bar and wire; and wire.  
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1.2.3 This specification does not cover alloys modified by the addition of elements such as sulfur and selenium to enhance machinability.  
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.  
1.3.1 There are selected values presented in two units, both of which are in acceptable SI units. These are differentiated by the word “, or,” as in “g/cm3, or, (kg/m3).” In addition, values for mean linear coefficient of expansion in Table X1.1 are shown solely in μm/m/°C in keeping with prior versions of this standard.  
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ABSTRACT
This specification covers welded tubes made of UNS N06625, UNS N06219 and UNS N08825 alloys for use in boilers, heat exchangers and condensers for general corrosion prevention in either low or high-temperature environments. This standard contains information on manufacturing, chemical composition, mechanical properties and dimensional requirements for the welded tubes.
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1.1 This specification covers welded UNS N06219, UNS N06625, UNS N08642, UNS N08825, and UNS N08827 nickel alloy boiler, heat exchanger, and condenser tubes for general corrosion resisting and low or high-temperature service.  
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1.3 Grade 2 (UNS R03610)—Unalloyed monolithic forms molybdenum.  
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1.1 This specification covers refined nickel primarily produced from ore or matte or similar raw material. The principal commercial forms are cathodes, briquettes, and pellets.  
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3.1 The boiling ferric sulfate-sulfuric acid test may be applied to the following alloys in the wrought condition:    
Alloy  
Testing Time, h  
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N08367  
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N10276  
24(A) While the ferric sulfate-sulfuric acid test does detect susceptibility to inter- granular corrosion in Alloy N08825, the boiling 65 % nitric acid test, Practices A262, Practice C, for detecting susceptibility to intergranular corrosion in stainless steels is more sensitive and should be used if the intended service is nitric acid.  
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1.1 These test methods cover two tests as follows:  
1.1.1 Method A, Ferric Sulfate-Sulfuric Acid Test (Sections 3 – 10, inclusive)—This test method describes the procedure for conducting the boiling ferric sulfate—50 % sulfuric acid test which measures the susceptibility of certain nickel-rich, chromium-bearing alloys to intergranular corrosion (see Terminology G193), which may be encountered in certain service environments. The uniform corrosion rate obtained by this test method, which is a function of minor variations in alloy composition, may easily mask the intergranular corrosion components of the overall corrosion rate on alloys N10276, N06022, N06059, and N06455.  
1.1.2 Method B, Mixed Acid-Oxidizing Salt Test (Sections 11 – 18, inclusive)—This test method describes the procedure for conducting a boiling 23 % sulfuric + 1.2 % hydrochloric + 1 % ferric chloride + 1 % cupric chloride test which measures the susceptibility of certain nickel-rich, chromium-bearing alloys to display a step function increase in corrosion rate when there are high levels of grain boundary precipitation.  
1.2 The purpose of these two test methods is to detect susceptibility to intergranular corrosion as influenced by variations in processing or composition, or both. Materials shown to be susceptible may or may not be intergranularly corroded in other environments. This must be established independently by specific tests or by service experience.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3.1 Exception—Some desired corrosion rate units in 8.1.1 are given in inch-pound units.  
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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.

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ASTM E3047-22(Test Method)
Standard Test Method for Analysis of Nickel Alloys by Spark Atomic Emission Spectrometry

SIGNIFICANCE AND USE
5.1 This test method for the chemical analysis of nickel alloys is primarily intended to test material for compliance with compositional specifications such as those under jurisdiction of Committee B02. It may also be used to test compliance with other specifications that are compatible with the test method.  
5.2 It is assumed that all who use this method will be trained analysts capable of performing common laboratory procedures skillfully and safely, and that the work will be performed in a properly equipped laboratory.  
5.3 It is expected that laboratories using this method will prepare their own work instructions. These work instructions will include detailed operating instructions for the specific laboratory including information such as applicable analytical methods, drift correction (standardization) protocols, verifiers, and performance acceptance criteria.
SCOPE
1.1 This method describes the spark atomic emission spectrometric (Spark-AES) analysis of nickel alloys, such as those specified by Committee B02, having chemical compositions within the following limits:    
Element  
Application Range (Mass Fraction, %)  
Aluminum  
0.005-6.00  
Boron  
0.001-0.10  
Carbon  
0.005-0.15  
Chromium  
0.01-33.00  
Copper  
0.01-35.00  
Cobalt  
0.01-25.00  
Iron  
0.05-55.00  
Magnesium  
0.001-0.020  
Manganese  
0.01-1.00  
Molybdenum  
0.01-35.00  
Niobium  
0.01-6.0  
Nickel  
25.00-100.0  
Phosphorous  
0.001-0.025  
Silicon  
0.01-1.50  
Sulfur  
0.0001-0.01  
Titanium  
0.0001-6.0  
Tantalum  
0.01-0.15  
Tin  
0.001-0.020  
Tungsten  
0.01-5.0  
Vanadium  
0.0005-1.0  
Zirconium  
0.01-0.10  
1.2 The following elements may be determined using this method.    
Element  
Quantification Range (Mass Fraction, %)  
Aluminum  
0.010-1.50  
Boron  
0.004-0.025  
Carbon  
0.014-0.15  
Chromium  
0.09-20.0  
Cobalt  
0.05-14.00  
Copper  
0.03-0.6  
Iron  
0.17-20  
Magnesium  
0.001-0.03  
Manganese  
0.04-0.6  
Molybdenum  
0.07-5.0  
Niobium  
0.02-5.5  
Phosphorous  
0.005-0.020  
Silicon  
0.07-0.6  
Sulfur  
0.002-0.005  
Tantalum  
0.025-0.15  
Tin  
0.001-0.02  
Titanium  
0.025-3.2  
Tungsten  
0.02-0.10  
Vanadium  
0.005-0.25  
Zirconium  
0.01-0.05  
1.3 This method has been interlaboratory tested for the elements and quantification ranges specified in 1.2. The ranges in 1.2 indicate intervals within which results have been demonstrated to be quantitative. It may be possible to extend this method to other elements or different composition ranges provided that a method validation study as described in Guide E2857 is performed and that the results of this study show that the method extension is meeting laboratory data quality objectives. Supplemental data on other elements not included in the scope are found in the supplemental data tables of the Precision and Bias section.  
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. Specific safety hazard statements are given in Section 9.  
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.

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ASTM E1473-22(Test Method)
Standard Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys

SIGNIFICANCE AND USE
4.1 These test methods for the chemical analysis of metals and alloys are primarily intended as referee methods to test such materials for compliance with compositional specifications, particularly those under the jurisdiction of Committee B02 on Nonferrous Metals and Alloys. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 These test methods describe the chemical analysis of nickel, cobalt, and high-temperature alloys having chemical compositions within the following limits:    
Element  
Composition Range, %  
Aluminum  
0.005  
to  
7.00  
Beryllium  
0.001  
to  
0.05  
Boron  
0.001  
to  
1.00  
Calcium  
0.002  
to  
0.05  
Carbon  
0.001  
to  
1.10  
Chromium  
0.10  
to  
33.00  
Cobalt  
0.10  
to  
75.00  
Copper  
0.01  
to  
35.00  
Iron  
0.01  
to  
50.00  
Lead  
0.001  
to  
0.01  
Magnesium  
0.001  
to  
0.05  
Manganese  
0.01  
to  
3.0  
Molybdenum  
0.01  
to  
30.0  
Niobium (Columbium)  
0.01  
to  
6.0  
Nickel  
0.10  
to  
98.0  
Nitrogen  
0.001  
to  
0.20  
Phosphorus  
0.002  
to  
0.08  
Sulfur  
0.002  
to  
0.10  
Silicon  
0.01  
to  
5.00  
Tantalum  
0.005  
to  
1.00  
Tin  
0.002  
to  
0.10  
Titanium  
0.01  
to  
5.00  
Tungsten  
0.01  
to  
18.00  
Vanadium  
0.01  
to  
3.25  
Zinc  
0.001  
to  
0.01  
Zirconium  
0.01  
to  
2.50  
1.2 The test methods in this standard are contained in the sections indicated as follows:    
Aluminum, Total by the 8-Quinolinol Gravimetric Method
(0.20 % to 7.00 %)  
53 to 60  
Chromium by the Atomic Absorption Spectrometry Method
(0.018 % to 1.00 %)  
91 to 100  
Chromium by the Peroxydisulfate Oxidation—Titration Method
(0.10 % to 33.00 %)  
101 to 109  
Cobalt by the Ion-Exchange-Potentiometric Titration Method
(2 % to 75 %)  
25 to 32  
Cobalt by the Nitroso-R-Salt Spectrophotometric Method
(0.10 % to 5.0 %)  
33 to 42  
Copper by Neocuproine Spectrophotometric Method
(0.010 % to 10.00 %)  
43 to 52  
Iron by the Silver Reduction Titrimetric Method
(1.0 % to 50.0 %)  
118 to 125  
Manganese by the Metaperiodate Spectrophotometric Method
(0.05 % to 2.00 %)  
8 to 17  
Molybdenum by the Ion Exchange—8-Hydroxyquinoline
Gravimetric Method (1.5 % to 30 %)  
110 to 117  
Molybdenum by the Thiocyanate Spectrophotometric Method
(0.01 % to 1.50 %)  
79 to 90  
Nickel by the Dimethylglyoxime Gravimetric Method
(0.1 % to 84.0 %)  
61 to 68  
Niobium by the Ion Exchange—Cupferron Gravimetric Method
(0.5 % to 6.0 %)  
126 to 133  
Silicon by the Gravimetric Method (0.05 % to 5.00 %)  
18 to 24  
Tantalum by the Ion Exchange—Pyrogallol Spectrophotometric
Method (0.03 % to 1.0 %)  
134 to 142  
Tin by the Solvent Extraction-Atomic Absorption Spectrometry Method (0.002 % to 0.10 %)  
69 to 78  
1.3 Other test methods applicable to the analysis of nickel alloys that may be used in lieu of or in addition to this method are E1019, E1834, E1835, E1917, E1938, E2465, E2594, E2823.  
1.4 Some of the composition ranges given in ...

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ASTM
ASTM B924-02(2022)(Specification)
Standard Specification for Seamless and Welded Nickel Alloy Condenser and Heat Exchanger Tubes With Integral Fins

ABSTRACT
This specification covers seamless and welded nickel alloy tubing with either or both external and internal surfaces have been modified by cold forming. The cold forming process produces an enhanced surface for improved heat transfer in the tubing that makes these ideal for use in surface condensers, evaporators, heat exchangers and other similar heat transfer apparatus. The material properties and manufacturing conditions of the seamless and welded materials should conform accordingly.
SCOPE
1.1 This specification2 describes seamless and welded nickel alloy tubing on which the external or internal surface, or both, has been modified by a cold forming process to produce an integral enhanced surface, for improved heat transfer. The tubes are used in surface condensers, evaporators, heat exchangers and similar heat transfer apparatus in unfinned end diameters up to and including 1 in. (25.4 mm).  
1.2 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.  
1.3 The following precautionary statement pertains to the test method portion only: Section 10 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory requirements 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.

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ASTM
ASTM E1835-14(2022)(Test Method)
Standard Test Method for Analysis of Nickel Alloys by Flame Atomic Absorption Spectrometry

SIGNIFICANCE AND USE
5.1 This test method is used for the analysis of nickel alloy samples by FAAS to check compliance with compositional specifications. It is assumed that all who use the procedure will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882.  
5.2 Interlaboratory Studies (ILS)5, 6—International interlaboratory studies were conducted by ISO/TC 155/SC4, Analysis of nickel alloys. Results were evaluated in accordance with ISO 5725:1986 and restated to conform to Practice E1601. The method was published as ISO 7530, Parts 1 through 9. The published ISO statistics are summarized separately for each analyte to correspond with Practice E1601.  
5.3 In this test method, some matrix modifiers are specified. However, other additives have come into common use since the original publication of this test method. These may be equally or more effective but have not been tested. It is the responsibility of the user to validate the use of such additives or the use of different dilutions, or both.
SCOPE
1.1 This test method covers analysis of nickel alloys by flame atomic absorption spectrometry (FAAS) for the following elements:    
Element  
Compostiton Range, %  
Aluminum  
0.2 to 4.0  
Chromium  
0.01 to 4.0  
Cobalt  
0.01 to 4.0  
Copper  
0.01 to 4.0  
Iron  
0.1 to 4.0  
Manganese  
0.1 to 4.0  
Silicon  
0.2 to 1.0  
Vanadium  
0.05 to 1.0  
1.2 The composition ranges of these elements can be expanded by the use of appropriate standards.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. For specific hazards associated with the use of this test method, see Practices E50 and the warning statements included in this test method.  
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.

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