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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

Designation	Title
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(2007)	Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
B416 - 98(2007)	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 - 10	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	Standard Specification for Copper-Clad Steel Electrical Conductor for CATV Drop Wire
B910 / B910M - 07	Standard Specification for Annealed Copper-Clad Steel Wire

Conductors of Copper and Copper Alloys

Designation	Title
B1 - 01(2007)	Standard Specification for Hard-Drawn Copper Wire
B2 - 08	Standard Specification for Medium-Hard-Drawn Copper Wire
B3 - 01(2007)	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	Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
B47 - 95a(2007)	Standard Specification for Copper Trolley Wire
B48 - 00(2011)	Standard Specification for Soft Rectangular and Square Bare Copper Wire for Electrical Conductors
B105 - 05(2012)	Standard Specification for Hard-Drawn Copper Alloy Wires for Electric 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 - 07	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 - 04(2010)e1	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 - 03(2008)	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(2009)	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 - 04a(2010)	Standard Specification for Compressed Round Stranded Copper Conductors, Hard, Medium-Hard, or Soft Using Single Input Wire Construction
B961 - 08	Standard Specification for Silver Coated Copper and Copper Alloy Stranded Conductors for Electronic Space Application
B965 - 09	Standard Specification for High Performance Tin-Coated Annealed Copper Wire Intended for Electrical and Electronic Application for Solderability
B971 - 10	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

Designation	Title
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 - 08	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 - 08	Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
B957 - 08	Standard Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Overhead Electrical Conductors
B958 - 08	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

Designation	Title
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 - 02(2007)	Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
B399 / B399M - 04(2010)	Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors
B400 - 08	Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors
B401 - 04(2010)	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 - 10	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 - 06	Standard Specification for Concentric-Lay-Stranded Self-Damping Aluminum Conductors, Steel Reinforced (ACSR/SD)
B711 - 05	Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy Conductors, Steel Reinforced (AACSR) (6201)
B778 - 02(2012)	Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)
B779 - 12	Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/TW)
B786 - 08	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 - 12	Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS)
B857 - 11	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)

Editorial and Records

Designation	Title
B354 - 05	Standard Terminology Relating to Uninsulated Metallic Electrical Conductors

Material Specifications

Designation	Title
A345 - 09	Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
A664 - 11	Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications
A677 - 07	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	Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
A801 - 09	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(2007)	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(2008)	Standard Specification for Iron-Silicon Relay Steels
A876 - 09e1	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 - 09	Standard Specification for 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts
A976 - 03(2008)	Standard Classification of Insulating Coatings 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 - 07	Standard Specification for Sintered Ceramic Ferrite Permanent Magnets

Methods of Test and Sampling Procedure

Designation	Title
B193 - 02(2008)	Standard Test Method for Resistivity of Electrical Conductor Materials
B258 - 02(2008)	Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
B263 - 04(2010)	Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors
B279 - 04	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

Terminology and Definitions

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

Test Methods

Designation	Title
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 - 04(2012)	Standard Test Methods for Permeability of Feebly Magnetic Materials
A343 / A343M - 03(2008)	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 - 95(2009)e1	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 - 03(2008)	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 - 07	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 - 02(2007)	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 - 03(2008)	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 - 06	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	Standard Test Method for Magnetic Properties of High-Coercivity Permanent Magnet Materials Using Hysteresigraphs
A1013 - 00(2005)	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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Coal Standards and Gas Standards

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Corrosion Standards and Wear Standards

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