Electrical Standards and Magnetic Conductor Standards

    ASTM's electrical and magnetic conductor standards are instrumental in specifying, evaluating, and testing the electrical, magnetic, and physical properties of conducting materials used primarily in electrical and magnetic devices and related equipments. These properties include direct- and alternating-current magnetic properties, magnetic permeability, magnetic shielding efficiency, electrical resistivity, surface insulation resistivity, saturation magnetization and induction, interlaminar resistance, other physical properties. These electrical and magnetic conductor standards allow manufacturers, particularly those in the semiconductor industry, to examine and assess such materials and equipments to ensure their qualification for safe use.

    List of electrical standards and magnetic conductor standards developed by ASTM:


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    Composite Conductors

    DesignationTitle
    B227 - 10 Standard Specification for Hard-Drawn Copper-Clad Steel Wire
    B228 - 11a Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors
    B229 - 12 Standard Specification for Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite Conductors
    B415 - 98(2013) Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
    B416 - 98(2013) Standard Specification for Concentric-Lay-Stranded Aluminum-Clad Steel Conductors
    B452 - 09 Standard Specification for Copper-Clad Steel Wire for Electronic Application
    B501 - 10 Standard Specification for Silver-Coated, Copper-Clad Steel Wire for Electronic Application
    B502 / B502M - 10e1 Standard Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors
    B520 - 12 Standard Specification for Tin-Coated, Copper-Clad Steel Wire for Electronic Application
    B559 - 12 Standard Specification for Nickel-Coated, Copper-Clad Steel Wire for Electronic Application
    B566 - 04a(2011) Standard Specification for Copper-Clad Aluminum Wire
    B869 - 07(2013) Standard Specification for Copper-Clad Steel Electrical Conductor for CATV Drop Wire
    B910 / B910M - 07(2013) Standard Specification for Annealed Copper-Clad Steel Wire

    Conductors of Copper and Copper Alloys

    DesignationTitle
    B1 - 13 Standard Specification for Hard-Drawn Copper Wire
    B2 - 13 Standard Specification for Medium-Hard-Drawn Copper Wire
    B3 - 13 Standard Specification for Soft or Annealed Copper Wire
    B8 - 11 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
    B9 - 90(2012) Standard Specification for Bronze Trolley Wire
    B33 - 10(2014) Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
    B47 - 95a(2012) Standard Specification for Copper Trolley Wire
    B48 - 00(2011) Standard Specification for Soft Rectangular and Square Bare Copper Wire for Electrical Conductors
    B116 - 95(2012) Standard Specification for Figure-9 Deep-Grooved and Figure-8 Copper Trolly Wire for Industrial Haulage
    B172 - 10 Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
    B173 - 10 Standard Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors
    B174 - 10 Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors
    B189 - 05(2010) Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
    B226 - 11 Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
    B246 - 05(2010) Standard Specification for Tinned Hard-Drawn and Medium-Hard-Drawn Copper Wire for Electrical Purposes
    B286 - 07(2012) Standard Specification for Copper Conductors for Use in Hookup Wire for Electronic Equipment
    B298 - 12 Standard Specification for Silver-Coated Soft or Annealed Copper Wire
    B355 - 11 Standard Specification for Nickel-Coated Soft or Annealed Copper Wire
    B470 - 02(2012) Standard Specification for Bonded Copper Conductors for Use in Hookup Wires for Electronic Equipment
    B496 - 14 Standard Specification for Compact Round Concentric-Lay-Stranded Copper Conductors
    B624 - 07(2012) Standard Specification for High-Strength, High-Conductivity Copper-Alloy Wire for Electronic Application
    B738 - 13 Standard Specification for Fine-Wire Bunch-Stranded and Rope-Lay Bunch-Stranded Copper Conductors for Use as Electrical Conductors
    B784 - 01(2012) Standard Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables
    B787 / B787M - 04(2014) Standard Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation
    B835 - 04(2009) Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction
    B902 / B902M - 13e1 Standard Specification for Compressed Round Stranded Copper Conductors, Hard, Medium-Hard, or Soft Using Single Input Wire Construction
    B965 - 09(2014) Standard Specification for High Performance Tin-Coated Annealed Copper Wire Intended for Electrical and Electronic Application for Solderability
    B971 - 10(2014) Standard Specification for Silver-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application
    B972 - 10 Standard Specification for Nickel-Coated Braid and Ribbon Flat Copper Wire Intended for use in Electronic Application
    B973 - 10 Standard Specification for Tin-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application

    Conductors of Ferrous Metals

    DesignationTitle
    B498 / B498M - 08 Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
    B500 / B500M - 12 Standard Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors
    B606 / B606M - 08e1 Standard Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced
    B802 / B802M - 10 Standard Specification for Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)
    B803 / B803M - 08e1 Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
    B957 / B957M - 08e1 Standard Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Overhead Electrical Conductors
    B958 / B958M - 08e1 Standard Specification for Extra-High-Strength and Ultra-High-Strength Class A Zinc–5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors

    Conductors of Light Metals

    DesignationTitle
    B230 / B230M - 07(2012) Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
    B231 / B231M - 12 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
    B232 / B232M - 11 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR)
    B233 - 97(2012) Standard Specification for Aluminum 1350 Drawing Stock for Electrical Purposes
    B324 - 01(2012) Standard Specification for Aluminum Rectangular and Square Wire for Electrical Purposes
    B398 / B398M - 14 Standard Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes
    B399 / B399M - 04(2010) Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors
    B400 / B400M - 14 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors
    B401 - 12 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP)
    B524 / B524M - 99(2011) Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Alloy Reinforced (ACAR, 1350/6201)
    B549 - 13 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced for Use in Overhead Electrical Conductors
    B609 / B609M - 12 Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
    B701 / B701M - 13 Standard Specification for Concentric-Lay-Stranded Self-Damping Aluminum Conductors, Steel Reinforced (ACSR/SD)
    B711 - 13 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy Conductors, Steel Reinforced (AACSR) (6201)
    B778 - 14 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)
    B779 - 14 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/TW)
    B786 / B786M - 08(2013)e1 Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent Insulation
    B800 - 05(2011) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes - Annealed and Intermediate Tempers
    B801 - 07(2012) Standard Specification for Concentric-Lay-Stranded Conductors of 8000 Series Aluminum Alloy for Subsequent Covering or Insulation
    B836 - 00(2011) Standard Specification for Compact Round Stranded Aluminum Conductors Using Single Input Wire Construction
    B856 - 13 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS)
    B857 - 14 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW)
    B901 - 04(2011) Standard Specification for Compressed Round Stranded Aluminum Conductors Using Single Input Wire Construction
    B911 / B911M - 12 Standard Specification for ACSR Twisted Pair Conductor (ACSR/TP)
    B941 - 10 Standard Specification for Heat Resistant Aluminum-Zirconium Alloy Wire for Electrical Purposes
    B976 - 11 Standard Specification for Fiber Reinforced Aluminum Matrix Composite (AMC) Core Wire for Aluminum Conductors, Composite Reinforced (ACCR)
    B978 / B978M - 14 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Composite Reinforced (ACCR)

    Editorial and Records

    DesignationTitle
    B354 - 12 Standard Terminology Relating to Uninsulated Metallic Electrical Conductors

    Material Specifications

    DesignationTitle
    A345 - 14 Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
    A664 - 14 Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications
    A677 - 12 Standard Specification for Nonoriented Electrical Steel Fully Processed Types
    A683 - 05(2010) Standard Specification for Nonoriented Electrical Steel, Semiprocessed Types
    A726 - 05(2010) Standard Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types
    A753 - 08(2013) Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
    A801 - 14 Standard Specification for Wrought Iron-Cobalt High Magnetic Saturation Alloys (UNS R30005 and K92650)
    A811 - 03(2008) Standard Specification for Soft Magnetic Iron Parts Fabricated by Powder Metallurgy (P/M) Techniques
    A838 - 02(2013) Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications
    A839 - 02(2008) Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
    A848 - 01(2011) Standard Specification for Low-Carbon Magnetic Iron
    A867 - 03(2013) Standard Specification for Iron-Silicon Relay Steels
    A876 - 12 Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types
    A901 - 12 Standard Specification for Amorphous Magnetic Core Alloys, Semi-Processed Types
    A904 - 14 Standard Specification for 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts
    A976 - 13 Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
    A1009 - 05(2010) Standard Specification for Soft Magnetic MnZn Ferrite Core Materials for High Frequency (10 kHz-1 MHz) Power Transformer and Filter Inductor Applications
    A1054 - 14 Standard Specification for Sintered Ceramic Ferrite Permanent Magnets
    A1086 - 13 Standard Specification for Thin-Gauge Nonoriented Electrical Steel Fully Processed Types

    Methods of Test and Sampling Procedure

    DesignationTitle
    B105 - 05(2012) Standard Specification for Hard-Drawn Copper Alloy Wires for Electric Conductors
    B193 - 02(2014) Standard Test Method for Resistivity of Electrical Conductor Materials
    B258 - 14 Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
    B263 / B263M - 14 Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors
    B279 - 13 Standard Test Method for Stiffness of Bare Soft Square and Rectangular Copper and Aluminum Wire for Magnet Wire Fabrication
    B682 - 01(2009) Standard Specification for Standard Metric Sizes of Electrical Conductors
    B830 - 11 Standard Specification for Uniform Test Methods and Frequency
    B961 - 13 Standard Specification for Silver Coated Copper and Copper Alloy Stranded Conductors for Electronic Space Application
    B979 - 12 Standard Specification for Non-Specular (NS) Surface Finish on Overhead Aluminum Electrical Conductors
    B986 - 13e1 Standard Test Method for Determination of Tensile Strength by Mass Method for Stranded Conductors Intended for use in Electronic Application

    Terminology and Definitions

    DesignationTitle
    A340 - 03a(2011) Standard Terminology of Symbols and Definitions Relating to Magnetic Testing

    Test Methods

    DesignationTitle
    A34 / A34M - 06(2012) Standard Practice for Sampling and Procurement Testing of Magnetic Materials
    A341 / A341M - 00(2011)e1 Standard Test Method for Direct Current Magnetic Properties of Materials Using D-C Permeameters and the Ballistic Test Methods
    A342 / A342M - 14 Standard Test Methods for Permeability of Weakly Magnetic Materials
    A343 / A343M - 14 Standard 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 - 05(2011) Standard 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 - 14 Standard Test Method for Direct-Current Magnetic Properties of Materials Using the Ballistic Method and Ring Specimens
    A598 / A598M - 02(2007) Standard Test Method for Magnetic Properties of Magnetic Amplifier Cores
    A697 / A697M - 13 Standard Test Method for Alternating Current Magnetic Properties of Laminated Core Specimen Using Voltmeter-Ammeter-Wattmeter Methods
    A698 / A698M - 07 Standard Test Method for Magnetic Shield Efficiency in Attenuating Alternating Magnetic Fields
    A712 - 14 Standard Test Method for Electrical Resistivity of Soft Magnetic Alloys
    A717 / A717M - 12 Standard Test Method for Surface Insulation Resistivity of Single-Strip Specimens
    A719 / A719M - 14 Standard Test Method for Lamination Factor of Magnetic Materials
    A720 / A720M - 02(2011) Standard Test Method for Ductility of Nonoriented Electrical Steel
    A721 / A721M - 02(2011) Standard Test Method for Ductility of Oriented Electrical Steel
    A772 / A772M - 00(2011)e1 Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
    A773 / A773M - 01(2009) Standard Test Method for dc Magnetic Properties of Materials Using Ring and Permeameter Procedures with dc Electronic Hysteresigraphs
    A804 / A804M - 04(2009)e1 Standard Test Methods for Alternating-Current Magnetic Properties of Materials at Power Frequencies Using Sheet-Type Test Specimens
    A889 / A889M - 14 Standard Test Method for Alternating-Current Magnetic Properties of Materials at Low Magnetic Flux Density Using the Voltmeter-Ammeter-Wattmeter-Varmeter Method and 25-cm Epstein Frame
    A893 / A893M - 03(2008) Standard Test Method for Complex Dielectric Constant of Nonmetallic Magnetic Materials at Microwave Frequencies
    A894 / A894M - 00(2011)e1 Standard Test Method for Saturation Magnetization or Induction of Nonmetallic Magnetic Materials
    A900 / A900M - 01(2012) Standard Test Method for Lamination Factor of Amorphous Magnetic Strip
    A912 / A912M - 11 Standard Test Method for Alternating-Current Magnetic Properties of Amorphous Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method with Toroidal Specimens
    A927 / A927M - 11 Standard Test Method for Alternating-Current Magnetic Properties of Toroidal Core Specimens Using the Voltmeter-Ammeter-Wattmeter Method
    A932 / A932M - 01(2012) Standard Test Method for Alternating-Current Magnetic Properties of Amorphous Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method with Sheet Specimens
    A937 / A937M - 12 Standard Test Method for Determining Interlaminar Resistance of Insulating Coatings Using Two Adjacent Test Surfaces
    A971 / A971M - 10 Standard Test Method for Measuring Edge Taper and Crown of Flat-Rolled Electrical Steel Coils
    A977 / A977M - 07(2013) Standard Test Method for Magnetic Properties of High-Coercivity Permanent Magnet Materials Using Hysteresigraphs
    A1013 - 00(2013)e1 Standard Test Method for High-Frequency (10 kHz-1 MHz) Core Loss of Soft Magnetic Core Components at Controlled Temperatures Using the Voltmeter-Ammeter-Wattmeter Method
    A1036 - 04(2009) Standard Guide for Measuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers
    A1071 / A1071M - 11 Standard Test Method for Evaluating Hygrothermal Corrosion Resistance of Permanent Magnet Alloys

    Other standards developed by ASTM committees:


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