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ASTM F290-94(2005)

(Specification)

Standard Specification for Round Wire for Winding Electron Tube Grid Laterals

Standard Specification for Round Wire for Winding Electron Tube Grid Laterals

ABSTRACT
This specification covers round wires made from UNS N02211, UNS N10001, or N03300 nickel alloy or molybdenum, with diameters within a specified range, for winding electron tube grid laterals. The wires are classified into five classes based on tensile properties. All wires should conform to the required values of tensile strength, yield strength, working range, and elongation properties. The surface of each bare wire should be bright and free from cracks, slivers, fissures, lubricants, or other detrimental defects, while all platings should be free from bubbles, flakes, blisters, porosity, and plating salts. Wires should be spooled in one continuous length and in such a manner that it can be unwound under reasonable tension without binding or becoming distorted.
SCOPE
1.1 This specification covers round wire up to 0.006 in. (0.15 mm) in diameter for use as electron tube grid lateral winding wire.
1.2 Five classes of wire are covered based on their tensile properties (see and ).
1.3 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Dec-2004
ICS
29.060.10 - Wires
Technical Committee
F01 - Electronics
Drafting Committee
F01.03 - Metallic Materials, Wire Bonding, and Flip Chip
Current Stage
Ref Project

Relations

Replaces
ASTM F290-94(1999) - Standard Specification for Round Wire for Winding Electron Tube Grid Laterals
Effective Date
01-Jan-2005
Replaced By
ASTM F290-94(2010) - Standard Specification for Round Wire for Winding Electron Tube Grid Laterals
Effective Date
01-Oct-2010
Referred By
ASTM F85-76(2018) - Standard Practice for Nomenclature for Wire Leads Used as Conductors in Electron Tubes (Withdrawn 2023)
Effective Date
01-Jan-2005

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ASTM F290-94(2005) - Standard Specification for Round Wire for Winding Electron Tube Grid LateralsASTM F290-94(2005) - Standard Specification for Round Wire for Winding Electron Tube Grid Laterals
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ASTM F290-94(2005) - Standard Specification for Round Wire for Winding Electron Tube Grid Laterals
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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: F290 – 94 (Reapproved 2005)
Standard Specification for
Round Wire for Winding Electron Tube Grid Laterals
ThisstandardisissuedunderthefixeddesignationF290;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers round wire up to 0.006 in. 3.1 Description of Terms:
(0.15 mm) in diameter for use as electron tube grid lateral 3.1.1 The following description of terms shall apply to the
winding wire. requirements specified in Table 1:
1.2 Five classes of wire are covered based on their tensile 3.1.1.1 breaking strength—The stress at which the speci-
properties (see 5.2 and 5.3). men breaks.
1.3 The values stated in inch-pound units are to be regarded 3.1.1.2 elongation—The maximum percent of stretch in a
as the standard. The metric equivalents of inch-pound units specimen of 10-in. (250-mm) gage length.
may be approximate. 3.1.1.3 tensile strength— The ultimate strength of the ma-
1.4 This standard does not purport to address all of the terial expressed either as grams per milligram per 200 mm
safety concerns, if any, associated with its use. It is the length of wire or pounds per square inch.
responsibility of the user of this standard to establish appro- 3.1.1.4 ultimate strength—The maximum stress developed
priate safety and health practices and determine the applica- in a specimen.
bility of regulatory limitations prior to use. 3.1.1.5 work load—The difference between the yield load
and the ultimate load.
2. Referenced Documents
3.1.1.6 yield strength— The stress developed at 1 percent
2.1 ASTM Standards:
elongation when testing a specimen of 10-in. (250-mm) gage
E39 Test Methods for Chemical Analysis of Nickel length.
E107 Test Methods for Chemical Analysis of Electronic
4. Chemical Composition
Nickel
E129 Test Method for Spectrographic Analysis of Thermi- 4.1 The wire shall conform to the requirements as to
onic Nickel Alloys by the Powder Techniques chemical composition as prescribed in Table 2.
F16 Test Methods for Measuring Diameter or Thickness of
5. Tensile Properties
Wire and Ribbon for Electronic Devices and Lamps
5.1 The wire shall conform to the requirements as to tensile
F205 Test Method for Measuring Diameter of Fine Wire by
Weighing strength, yield strength, working range, and elongation prop-
erties as prescribed in Table 1 for the class of wire designated.
F288 Specification for Tungsten Wire for Electron Devices
and Lamps 5.2 The class designations for the nickel-titanium-
magnesium alloy UNS N03300; the nickel-manganese alloy
F289 Specification for Molybdenum Wire and Rod for
Electronic Applications UNSN02211;molybdenumwire,andthenickel-molybdenum-
ironalloyUNSN10001;arebasedontheirtensilepropertiesas
follows:
5.2.1 Class I—The wire shall conform to elongation prop-
This specification is under the jurisdiction of ASTM Committee F01 on
erties as specified in ranges in Table 1.
Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic
5.2.2 Class II—The wire shall conform to the following
Materials.
Current edition approved Jan. 1, 2005. Published January 2005. Originally
tensile properties:
approved in 1954 as B290 – 54 T; redesignated F290 in 1955. Last previous edition
5.2.2.1 Yield strength with a spread of approximately6
approved in 1999 as F290 – 94 (1999). DOI: 10.1520/F0290-94R05.
2 15 %, as shown in grams-force, minimum and maximum, in
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Table 2,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
5.2.2.2 Working range, as specified in Table 1, and
the ASTM website.
5.2.2.3 Elongation as specified in Table 1.
Discontinued; see 1994 Annual Book of ASTM Standards, Vol 03.05.
4 5.2.3 Class III—The wire shall conform to the following
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org. tensile properties:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F290 – 94 (2005)
5.2.3.1 Yield strength with a spread of approximately6 5.3 The class designations for tungsten wire are as follows:
10 %, as shown in grams-force, minimum and maximum, in
5.3.1 Classes IV and V— Tungsten wire UNS R07005 shall
Table 1.
conform to the tensile properties for both classes as prescribed
5.2.3.2 A larger working range as specified in Table 1, and
in Table 3.
5.2.3.3 Elongation as specified in Table 1.
TABLE 1 Tensile Properties for Nickel-Titanium-Magnesium Alloy (UNS N03300), Nickel-Manganese Alloy (UNS N02211),
Molybdenum Wire, and Nickel-Molybdenum-Iron Alloy (UNS N10001) Wire
CLASS I
Note—Wire supplied as Class I shall conform to the following elongation values as specified by range:
Material Range Wire Diameter, Elongation,
in. (mm) %
Nickel-titanium-magnesium alloy (UNS N03300)
and nickel-manganese alloy (UNS N02211) 1 All 8 to 16
2 All 14 to 22
3 0.003 (0.08) and under 20 and over
4 Above 0.003 (0.08) 22 and over
Molybdenum 1 All 8 to 16
2 All 14 to 22
Nickel-molybdenum-iron alloy (UNS N10001) 1 0.001 (0.025) 8 to 18
2 0.0015 (0.038) 18 to 32
3 0.002 (0.050) and above 25 and over
CLASS II
Note—Wire supplied as Class II shall conform to the following requirements as to yield strength (6 15 percent), working range, and elongation:
Wire Diameter Yield Strength
Working Elongation,
Material Approximate Center Load
Load, min, gf min, %
in. (mm)
Stress psi (Mpa) min, gf max, gf
Nickel-titanium-magnesium 0.0015 (0.038) 74 000 (510) 51 67 17 8
alloy (UNS N03300)
0.0016 (0.041) 74 000 (510) 56 76 17 8
0.0017 (0.043) 70 500 (486) 62 84 17 8
0.0018 (0.046) 70 500 (486) 69 93 20 8
0.0019 (0.048) 70 500 (486) 76 104 20 10
0.0020 (0.051) 70 000 (483) 85 115 35 10
0.0025 (0.064) 68 500 (472) 130 175 60 10
0.0027 (0.069) 64 500 (445) 145 190 75 10
0.0030 (0.076) 63 500 (438) 175 235 90 15
0.0033 (0.084) 63 000 (434) 210 280 115 15
0.0035 (0.089) 63 000 (434) 235 315 135 20
0.0040 (0.102) 61 500 (424) 300 400 190 20
0.0045 (0.114) 60 000 (414) 370 500 250 20
0.0050 (0.127) 60 000 (414) 450 610 330 20
0.0055 (0.140) 60 000 (414) 550 745 400 20
0.0060 (0.152) 60 000 (414) 655 885 475 20
Nickel-manganese 0.0020 (0.051) 59 600 (411) 70 100 30 14
alloy (UNS N02211)
0.0025 (0.064) 58 400 (403) 110 150 50 14
0.0027 (0.067) 56 800 (392) 125 170 60 14
0.0030 (0.076) 56 600 (390) 150 210 80 18
0.0033 (0.084) 50 400 (347) 175 245 105 18
0.0035 (0.089) 50 400 (347) 200 270 120 18
0.004 (0.102) 51 000 (352) 250 340 170 22
0.0045 (0.114) 47 000 (324) 295 395 230 22
0.005 (0.127) 46 000 (317) 350 470 305 22
0.006 (0.152) 43 000 (296) 465 635 490 22
Molybdenum 0.0008 (0.020) 120 000 (827) 24 34 1 8
0.0010 (0.025) 120 000 (827) 35 50 4 8
0.0012 (0.030) 118 500 (817) 50 70 6 8
0.0013 (0.033) 118 500 (817) 60 80 8 8
0.00133 (0.034) 118 500 (817) 65 85 8 8
0.00150 (0.038) 113 500 (782) 77 105 10 12
0.0017 (0.043) 113 500 (782) 95 135 15 12
0.0020 (0.051) 105 000 (724) 127 173 25 12
0.0025 (0.064) 101 000 (696) 191 259 40 15
0.0030 (0.076) 96 000 (662) 262 354 65 17
0.0033 (0.084) 96 000 (662) 317 429 80 17
0.0035 (0.089) 96 000 (662) 356 482 90 17
0.0040 (0.102) 96 000 (662) 466 630 115 17
0.0045 (0.114) 96 000 (662) 589 797 145 17
0.0050 (0.127) 96 000 (662) 728 984 180 17
0.0055 (0.140) 96 000 (662) 880 1190 220 17
F290 – 94 (2005)
CLASS II
Note—Wire supplied as Class II shall conform to the following requirements as to yield strength (6 15 percent), working range, and elongation:
Wire Diameter Yield Strength
Working Elongation,
Material Approximate Center Load
Load, min, gf min, %
in. (mm)
Stress psi (Mpa) min, gf max, gf
0.0060 (0.152) 96 000 (662) 1047 1417 260 17
Nickel-molybdenum-iron 0.0016 (0.041) 92 000 (634) 70 95 40 10
alloy (UNS N10001)
0.0020 (0.051) 85 000 (586) 102 138 65 10
0.0025 (0.064) 85 000 (586) 160 215 110 10
0.0030 (0.076) 80 000 (552) 219 297 165 15
0.0033 (0.084) 80 000 (552) 272 368 205 15
0.0035 (0.089) 80 000 (552) 287 389 240 15
0.0040 (0.102) 80 000 (552) 371 503 320 20
0.0050 (0.127) 80 000 (552) 606 820 485 20
Class III
Note—Wire supplied as Class III shall conform to the following requirements as to yield strength (610 %), working range, and elongation:
Wire Diameter Yield Strength
Working Elongation,
Material Approximate Center Load
Load, min, gf min, %
in. (mm)
Stress psi (Mpa) min, gf max, gf
Nickel-titanium-magnesium 0.0015 (0.038) 74 000 (510) 53 65 20 10
alloy (UNS N03300)
0.0016 (0.041) 74 000 (510) 59 73 25 10
0.0017 (0.043) 70 500 (486) 66 80 30 12
0.0018 (0.046) 70 500 (486) 72 89 35 12
0.0019 (0.048) 70 500 (486) 81 99 35 12
0.0020 (0.051) 70 000 (483) 90 110 45 15
0.0025 (0.064) 68 500 (472) 135 165 75 15
0.0027 (0.069) 64 500 (445) 150 185 90 15
Class III
Note—Wire supplied as Class III shall conform to the following requirements as to yield strength (610 %), working range, and elongation:
Wire Diameter Yield Strength
Working Elongation,
Material Approximate Center Load
Load, min, gf min, %
in. (mm)
Stress psi (Mpa) min, gf max, gf
Nickel-titanium-magnesium 0.0030 (0.076) 63 500 (438) 185 225 120 15
alloy (UNS N03300)
0.0033 (0.084) 63 000 (434) 220 270 145 15
0.0035 (0.089) 63 000 (434) 250 305 170 20
0.0040 (0.102) 61 500 (424) 315 385 230 20
0.0045 (0.114) 60 000 (414) 390 480 310 20
0.0050 (0.127) 60 000 (414) 475 585 400 20
0.0055 (0.140) 60 000 (414) 580 710 485 20
0.0060 (0.152) 60 000 (414) 690 850 575 20
Nickel-manganese 0.0020 (0.051) 59 600 (411) 75 95 40 14
alloy (UNS N02211)
0.0025 (0.064) 58 400 (403) 115 145 65 14
0.0027 (0.069) 56 800 (392) 130 165 80 14
0.0030 (0.076) 56 600 (390) 160 200 100 18
0.0033 (0.084) 50 400 (347) 190 235 125 18
0.0035 (0.090) 50 400 (347) 210 260 145 18
0.0040 (0.102) 51 500 (355) 265 325 200 22
0.0045 (0.114) 47 500 (328) 310 380 265 22
0.0050 (0.127) 46 000 (317) 370 450 355 22
0.006 (0.152) 54 000 (372) 495 605 560 22
Molybdenum 0.0008 (0.020) 120 000 (827) 25 33 1 8
0.0010 (0.025) 120 000 (827) 40 50 4 8
0.0012 (0.030) 118 500 (817) 55 65
...

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Fibrous Coverage  
6  
Dielectric Breakdown Voltage  
9  
1.3 This standard and IEC 60851 are similar if not equivalent in technical content.  
1.4 This standard and NEMA MW 1000 are similar if not equivalent in technical content.  
1.5 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.  
1.6 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. See 8.4.1 and 9.4.1 for specific caution statements.  
1.7 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 B236/B236M-23(Specification)
Standard Specification for Aluminum Bars for Electrical Purposes (Bus Bars)

ABSTRACT
This specification covers Aluminum 1350 bar for electric conductors in the tempers. The tempers are designated as H12, H112, and H111. The products covered by this specification shall be produced by extruding or rolling. Bars in the H12 temper shall be furnished with a rolled mill finish; bars in the H111 temper, with an as-extruded mill finish; and bars in the H112 temper, with a rolled mill finish except that the edges shall be as sawed. The bars shall be subjected to tension test to determine their tensile and yield strengths. Bars in the H12, and H111, and H112 tempers shall be capable of being bent flatwise at room temperature, through an angle of 90° around a pin or mandrel having a radius equal to the thickness of the specimen, without cracking or evidence of slivers or other imperfections. For a flatwise bend, the pin or mandrel shall be 90° from the working (extrusion or rolling) direction, and across the greater (width) dimension of the bar. The required 90° bend shall be in the working (extrusion or rolling) direction. Bars in the H12 and H111 tempers whose width-to-thickness ratios are not in excess of 12 and whose width is 100 mm or less, shall be capable of being bent at room temperature edgewise 90° around a mandrel without cracking or localized thinning to less than 90 % of the maximum thickness within the central 60° of the bend when measured along the outer edge of the bend. Electrical resistivity and conductivity shall be measured.
SCOPE
1.1 This specification covers Aluminum 1350 bar for electric conductors in the tempers shown in Table 1.  
1.2 Aluminum and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System designation is A91350 in accordance with Practice E527.  
Note 1: For Alloy 6101 bus conductors, refer to Specification B317/B317M.
Note 2: Prior to 1975, Aluminum 1350 was designated as EC aluminum.  
1.3 The values stated in either SI or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.  
1.5 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.  
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.

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ASTM
ASTM B606/B606M-23(Specification)
Standard Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors

ABSTRACT
This specification covers the standard requirements for round, high-strength, zinc-coated (galvanized), steel core wire with Class A zinc coating used for mechanical reinforcement in the manufacture of special steel reinforced aluminum and aluminum-alloy conductors. The base metal shall be steel produced by the open-hearth, electric-furnace, or basic-oxygen process and the wire shall be cold drawn and coated with zinc. Joints may be made at any stage of processing prior to final cold drawing by the electric butt-weld or flash-welding process. Chemical analysis shall be conducted; wherein, the steel shall conform to the chemical composition requirements for carbon, manganese, phosphorus, sulfur, and silicon. The zinc-coated steel core wire shall conform to the tensile strength and elongation requirements which shall be obtained using a tensile test method. The material shall also undergo wrap and adherence tests; wherein, the wire shall be capable of being wrapped in a close helix without cracking or flaking.
SCOPE
1.1 This specification covers round, high-strength, zinc-coated (galvanized), steel core wire with Class A zinc coating (GA3) for use in overhead electrical conductors.  
1.2 This specification covers wire of diameter from 0.0500 in. to 0.1900 in. inclusive or 1.27 mm to 4.82 mm inclusive.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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 B520-12(2023)(Specification)
Standard Specification for Tin-Coated, Copper-Clad Steel Wire for Electronic Application

ABSTRACT
This specification covers tin-coated, copper-clad steel wires for electronic applications. The four classes of steel wires considered here are: hard-drawn wires with 30% nominal conductivity (Class T30HS); annealed wires with 30% nominal conductivity (Class T30A); hard-drawn wires with 40% nominal conductivity (Class T40HS); and annealed wires with 40% nominal conductivity (Class T40A). Specimens shall go through tests and shall adhere to specified requirements for dimensions, electrical resistivity, tensile strength, and coating continuity and adherence.
SCOPE
1.1 This specification covers tin-coated copper-clad steel wire for electronic application.  
1.2 Four classes of tin-coated copper-clad steel wire are covered as follows:  
1.2.1 Class T30HS—Nominal 30 % conductivity, hard-drawn,  
1.2.2 Class T30A—Nominal 30 % conductivity, annealed,  
1.2.3 Class T40HS—Nominal 40 % conductivity, hard-drawn, and  
1.2.4 Class T40A—Nominal 40 % conductivity, annealed.  
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.  
1.3.1 Exception—The SI values for resistivity and volume are to be regarded as standard.  
1.4 The following safety hazards caveat pertains only to the test method portion, Section 6, 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
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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