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.
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Bi-Metallic Conductors
B1010/B1010M-19 Standard Specification for Copper-Clad Steel Electrical Conductor for Tracer Wire Applications
B227-15(2019) Standard Specification for Hard-Drawn Copper-Clad Steel Wire
B501-10(2019) Standard Specification for Silver-Coated, Copper-Clad Steel Wire for Electronic Application
B228-11a(2021) Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors
B415-16(2021) Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
B566-04a(2021) Standard Specification for Copper-Clad Aluminum Wire
B452-22 Standard Specification for Copper-Clad Steel Wire for Electronic Application
B502/B502M-23 Standard Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors
B229-12(2023) Standard Specification for Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite Conductors
B416-98(2023) Standard Specification for Concentric-Lay-Stranded Aluminum-Clad Steel Conductors
B520-12(2023) Standard Specification for Tin-Coated, Copper-Clad Steel Wire for Electronic Application
B559-12(2023) Standard Specification for Nickel-Coated, Copper-Clad Steel Wire for Electronic Application
B869-07(2023) Standard Specification for Copper-Clad Steel Electrical Conductor for CATV Drop Wire
B910/B910M-07(2023) Standard Specification for Annealed Copper-Clad Steel Wire
B1005-17(2023) Standard Specification for Copper-Clad Aluminum Bar for Electrical Purposes (Bus Bar)
Conductors of Copper and Copper Alloys
B286-20 Standard Specification for Copper Conductors for Use in Hookup Wire for Electronic Equipment
B355-11(2016) Standard Specification for Nickel-Coated Soft or Annealed Copper Wire
B173-17 Standard Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors
B172-17 Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
B174-17 Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors
B9-76(2017)e1 Standard Specification for Bronze Trolley Wire
B116-95(2017) Standard Specification for Figure-9 Deep-Grooved and Figure-8 Copper Trolley Wire for Industrial Haulage
B47-95a(2017) Standard Specification for Copper Trolley Wire
B470-02(2017) Standard Specification for Bonded Copper Conductors for Use in Hookup Wires for Electronic Equipment
B298-12(2017) Standard Specification for Silver-Coated Soft or Annealed Copper Wire
B784-01(2017)e1 Standard Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables
B624-07(2017) Standard Specification for High-Strength, High-Conductivity Copper-Alloy Wire for Electronic Application
B1-13(2018) Standard Specification for Hard-Drawn Copper Wire
B2-13(2018) Standard Specification for Medium-Hard-Drawn Copper Wire
B902/B902M-13(2018) Standard Specification for Compressed Round Stranded Copper Conductors, Hard, Medium-Hard, or Soft Using Single Input Wire Construction
B738-13(2018) Standard Specification for Fine-Wire Bunch-Stranded and Rope-Lay Bunch-Stranded Copper Conductors for Use as Electrical Conductors
B965-09(2018) Standard Specification for High Performance Tin-Coated Annealed Copper Wire Intended for Electrical and Electronic Application for Solderability
B835-14(2020) Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction
B787/B787M-04(2020) Standard Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation
B33-10(2020)e1 Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
B972-10(2020)e1 Standard Specification for Nickel-Coated Braid and Ribbon Flat Copper Wire Intended for use in Electronic Application
B971-10(2020)e1 Standard Specification for Silver-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application
B973-10(2020)e1 Standard Specification for Tin-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application
B189-05(2021) Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
B226-11(2021) Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
B48-00(2021)e1 Standard Specification for Soft Rectangular and Square Bare Copper Wire for Electrical Conductors
B246-15(2021) Standard Specification for Tinned Hard-Drawn and Medium-Hard-Drawn Copper Wire for Electrical Purposes
B496-16(2021) Standard Specification for Compact Round Concentric-Lay-Stranded Copper Conductors
B8-23 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
B3-13(2024) Standard Specification for Soft or Annealed Copper Wire
Conductors of Ferrous Metals
B341/B341M-02 Standard Specification for Aluminum-Coated (Aluminized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ) (Withdrawn 2007)
B498/B498M-22 Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
B803/B803M-22 Standard Specification for High-Strength Zinc–5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
B606/B606M-23 Standard Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
B802/B802M-23 Standard Specification for Zinc–5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
B957/B957M-23 Standard Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
B958/B958M-23 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
B500/B500M-24 Standard Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors
Conductors of Light Metals
B397-85(1999) Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 5005-H19 Conductors (Withdrawn 2003)
B396-00 Standard Specification for Aluminum-Alloy 5005-H19 Wire for Electrical Purposes (Withdrawn 2004)
B987/B987M-20 Standard Specification for Carbon Fiber Thermoset Polymer Matrix Composite Core (CFC) for use in Overhead Electrical Conductors
B233-97(2021) Standard Specification for Aluminum 1350 Drawing Stock for Electrical Purposes
B324-01(2021) Standard Specification for Aluminum Rectangular and Square Wire for Electrical Purposes
B609/B609M-12(2021) Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
B976-21 Standard Specification for Fiber Reinforced Aluminum Matrix Composite (AMC) Core Wire for Aluminum Conductors Aluminum Matrix Composite Reinforced (ACAMCR) (formerly known as ACCR)
B836-00(2021) Standard Specification for Compact Round Stranded Aluminum Conductors Using Single Input Wire Construction
B901-04(2021) Standard Specification for Compressed Round Stranded Aluminum Conductors Using Single Input Wire Construction
B800-05(2021) Standard Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes—Annealed and Intermediate Tempers
B531-90(1998)e1 Standard Specification for Aluminum-Alloy 5005 Drawing Stock for Electrical Purposes (Withdrawn 2003)
B889-98 Standard Specification for Solid Hard-Drawn Aluminum Wire for Electrical Purposes (Withdrawn 2003)
B232M-97 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated Steel-Reinforced (ACSR) [Metric] (Withdrawn 1999)
B399M-97 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors [Metric] (Withdrawn 1999)
B609M-97 Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes [Metric] (Withdrawn 1999)
B398M-97 Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes [Metric] (Withdrawn 1999)
B524M-97 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Alloy Reinforced (ACAR, 1350/6201) [Metric] (Withdrawn 1999)
B911/B911M-22 Standard Specification for ACSR Twisted Pair Conductor (ACSR/TP)
B230/B230M-22 Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
B314-90 Specification for Aluminum 1350 Wire for Communication Cable (Withdrawn 1994)
B398/B398M-22 Standard Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes
B401-22 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP)
B549-22 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced for Use in Overhead Electrical Conductors
B711-22 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy Conductors, Steel Reinforced (AACSR) (6201)
B778-22 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)
B779-22 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/TW)
B856-22 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS)
B857-22 Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW)
B701/B701M-22e1 Standard Specification for Concentric-Lay-Stranded Self-Damping Aluminum Conductors, Steel Reinforced (ACSR/SD)
B978/B978M-23 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum Matrix Composite Reinforced (ACAMCR), Formerly ACCR
B399/B399M-23 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 and 6201-T83 Conductors
B524/B524M-23 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Alloy Reinforced (ACAR, 1350/6201)
B400/B400M-23 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors
B786/B786M-08(2023) Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent Insulation
B801-18(2023) Standard Specification for Concentric-Lay-Stranded Conductors of 8000 Series Aluminum Alloy for Subsequent Covering or Insulation
B231/B231M-23 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
B1006-17(2023) Standard Specification for Electrical Overhead Conductor Code Word Names
B232/B232M-24 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR)
B941-24 Standard Specification for Heat Resistant Aluminum-Zirconium Alloy Wire for Electrical Purposes
Editorial and Records
B354-23 Standard Terminology Relating to Uninsulated Metallic Electrical Conductors
Material Specifications
A801-21 Standard Specification for Wrought Iron-Cobalt High Magnetic Saturation Alloys (UNS R30005 and K92650)
A753-21 Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
A848-17 Standard Specification for Low-Carbon Magnetic Iron
A876-17e1 Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types
A976-18 Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
A726-18 Standard Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types
A1009-18 Standard Specification for Soft Magnetic MnZn Ferrite Core Materials for Transformer and Inductor Applications
A345-19 Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
A1102-19 Standard Specification for Sintered Samarium Cobalt (SmCo) Permanent Magnets
A840/A840M-00(2006) Standard Specification for Fully Processed Magnetic Lamination Steel (Withdrawn 2011)
A904-20 Standard Specification for 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts
A901-19 Standard Specification for Amorphous Magnetic Core Alloys, Semi-Processed Types
A1086-20 Standard Specification for Thin-Gauge Nonoriented Electrical Steel Fully Processed Types
A876M-92 Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types [Metric] (Withdrawn 1998)
A664-15(2022) Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications
A1070-16(2022) Standard Specification for Cast and Sintered Alnico Permanent Magnets
A840M-91(1996)e1 Standard Specification for Fully Processed Magnetic Lamination Steel (Metric) (Withdrawn 2000)
A811-15(2022) Standard Specification for Soft Magnetic Iron Parts Fabricated by Powder Metallurgy Techniques
A1054-16(2022) Standard Specification for Sintered Ferrite Permanent Magnets
A677M-98a Standard Specification for Nonoriented Electrical Steel, Fully Processed Types (Metric) (Withdrawn 2000)
A839-15(2023) Standard Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications
A1126-23 Standard Specification for Magnetic Pure Iron
A677-16(2023) Standard Specification for Nonoriented Electrical Steel Fully Processed Types
A683-16(2023) Standard Specification for Nonoriented Electrical Steel, Semiprocessed Types
A1101-23 Standard Specification for Sintered and Fully Dense Neodymium Iron Boron (NdFeB) Permanent Magnets
A838-24 Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications
A867-24 Standard Specification for Iron-Silicon Relay Steels
Methods of Test and Sampling Procedure
B193-20 Standard Test Method for Resistivity of Electrical Conductor Materials
B682-01(2016) Standard Specification for Standard Metric Sizes of Electrical Conductors
B979-12(2018) Standard Specification for Non-Specular (NS) Surface Finish on Overhead Aluminum Electrical Conductors
B258-18 Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
B830-18 Standard Specification for Uniform Test Methods and Frequency
B1008-18 Standard Test Method for Stress-Strain Testing for Overhead Electrical Conductors
B279-13(2019) Standard Test Method for Stiffness of Bare Soft Square and Rectangular Copper and Aluminum Wire for Magnet Wire Fabrication
B961-13(2019) Standard Specification for Silver Coated Copper and Copper Alloy Stranded Conductors for Electronic Space Application
B263/B263M-14(2020) Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors
B986-13(2019) Standard Test Method for Determination of Tensile Strength by Mass Method for Stranded Conductors Intended for use in Electronic Application
Terminology and Definitions
A340-23a Standard Terminology of Symbols and Definitions Relating to Magnetic Testing
Test Methods
A883/A883M-01 Standard Test Method for Ferrimagnetic Resonance Linewidth and Gyromagnetic Ratio of Nonmetallic Magnetic Materials (Withdrawn 2006)
A348/A348M-05(2021) 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
A721/A721M-02(2021) Standard Test Method for Ductility of Oriented Electrical Steel
A720/A720M-02(2021) Standard Test Method for Ductility of Nonoriented Electrical Steel
A596/A596M-21 Standard Test Method for Direct-Current Magnetic Properties of Materials Using the Point by Point (Ballistic) Method and Ring Specimens
A342/A342M-21 Standard Test Methods for Permeability of Weakly Magnetic Materials
A773/A773M-21 Standard Test Method for Direct Current Magnetic Properties of Low Coercivity Magnetic Materials Using Hysteresigraphs
A900/A900M-01(2018) Standard Test Method for Lamination Factor of Amorphous Magnetic Strip
A697/A697M-13(2018) Standard Test Method for Alternating Current Magnetic Properties of Laminated Core Specimen Using Voltmeter-Ammeter-Wattmeter Methods
A343/A343M-14(2019) Standard Test Method for Alternating-Current Magnetic Properties of Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method and 25-cm Epstein Test Frame
A937/A937M-12(2019) Standard Test Method for Determining Interlaminar Resistance of Insulating Coatings Using Two Adjacent Test Surfaces
A912/A912M-11(2019) Standard Test Method for Alternating-Current Magnetic Properties of Amorphous Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method with Toroidal Specimens
A932/A932M-01(2019) Standard Test Method for Alternating-Current Magnetic Properties of Amorphous Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method with Sheet Specimens
A719/A719M-14(2019) Standard Test Method for Lamination Factor of Magnetic Materials
A1013-00(2020) 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
A889/A889M-14(2020) 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
A977/A977M-07(2020) Standard Test Method for Magnetic Properties of High-Coercivity Permanent Magnet Materials Using Hysteresigraphs
A1036-04(2020) Standard Guide for Measuring Power Frequency Magnetic Properties of Flat-Rolled Electrical Steels Using Small Single Sheet Testers
A894/A894M-00(2011)e1 Standard Test Method for Saturation Magnetization or Induction of Nonmetallic Magnetic Materials (Withdrawn 2017)
A698/A698M-20 Standard Test Method for Magnetic Shield Efficiency in Attenuating Alternating Magnetic Fields
A34/A34M-06(2021) Standard Practice for Sampling and Procurement Testing of Magnetic Materials
A804/A804M-04(2021) Standard Test Methods for Alternating-Current Magnetic Properties of Materials at Power Frequencies Using Sheet-Type Test Specimens
A900-91(1996)e1 Standard Test Method for Lamination Factor of Amorphous Magnetic Strip (Withdrawn)
A598/A598M-02(2022) Standard Test Method for Magnetic Properties of Magnetic Amplifier Cores
A341/A341M-16(2022) Standard Test Method for Direct Current Magnetic Properties of Soft Magnetic Materials Using D-C Permeameters and the Point by Point (Ballistic) Test Methods
A712-14(2022) Standard Test Method for Electrical Resistivity of Soft Magnetic Alloys
A717/A717M-12(2022) Standard Test Method for Surface Insulation Resistivity of Single-Strip Specimens
A772/A772M-00(2022) Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
A893/A893M-03(2022) Standard Test Method for Complex Dielectric Constant of Nonmetallic Magnetic Materials at Microwave Frequencies
A927/A927M-18(2022) Standard Test Method for Alternating-Current Magnetic Properties of Toroidal Core Specimens Using the Voltmeter-Ammeter-Wattmeter Method
A971/A971M-17(2022) Standard Test Method for Measuring Edge Taper and Crown of Flat-Rolled Electrical Steel Coils
A1071/A1071M-11(2023) Standard Test Method for Evaluating Hygrothermal Corrosion Resistance of Permanent Magnet Alloys
