1、Designation: F 901 01 (Reapproved 2007)Standard Specification forAluminum Transmission Tower Bolts and Nuts1This standard is issued under the fixed designation F 901; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers aluminum structural bolts andnuts for use in the construction of aluminum transmissiontowers, s
3、ubstations, and similar aluminum structures.1.2 Diameters of bolts and nuts furnished to this specifica-tion are58 ,34 , and78 in.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for inf
4、ormation onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2B 565 Test Method for Shear Testing of Aluminum andAluminum-Alloy Rivets and Cold-Heading Wire and RodsD 3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Co
5、nformance with SpecificationsE34 Test Methods for ChemicalAnalysis ofAluminum andAluminum-Base AlloysE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE 101 Test Method for Spectrographic Analysis of Alumi-num and Aluminium Alloys by the Point-to-
6、Plane Tech-nique3E 227 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique4F 606 Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers, Direct Tension Indicators, and RivetsF 1
7、470 Guide for Fastener Sampling for Specified Mechani-cal Properties and Performance Inspection2.2 ASME Standards:5B1.1 Unified Inch Screw Threads (UN and UNR ThreadForm)B18.2.1 Square and Hex Bolts and Screws (Inch Series)Addenda AB18.2.2 Square and Hex Nuts2.3 Military Standard:MIL-STD-A-8625 Anod
8、ic Coatings forAluminum andAlu-minum Alloys63. Ordering Information3.1 Orders for bolts and nuts under this specification shallinclude the following:3.1.1 Quantity (number of pieces of each item and size);3.1.2 Name of item;3.1.3 Size (diameter, threads per inch, length);3.1.4 Alloy number;3.1.5 Shi
9、pment lot testing, as required (see SupplementaryRequirements S1);3.1.6 Source inspection, if required (see Section 14);3.1.7 Certificate of compliance or test report, if required(see Section 16);3.1.8 Additional requirements, if any, to be specified on thepurchase order (see 4.2.1, 4.2.3, 8.2.1, 8.
10、2.2, 9.2, 12.1, and13.1);3.1.9 Supplementary requirements, if any; and3.1.10 ASTM specification and year of issue.NOTE 1Example: 10 000 pieces Aluminum Transmission Tower Bolt,0.750-10 by 2.00 in., Alloy 2024-T4, Furnish Certificate of Compliance,Supplementary Requirement S2, ASTM F 901XX.4. Materia
11、ls and Manufacture4.1 MaterialsBolts shall be manufactured from Alloy2024 and nuts from Alloy 6061 or 6262. The materialschemical composition shall be capable of developing themechanical properties required by Table 1, when in the finishedcondition.1This specification is under the jurisdiction of AS
12、TM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.04 on NonferrousFasteners.Current edition approved July 15, 2007. Published July 2007. Originallyapproved in 1984. Last previous edition approved in 2001 as F 901 01.2For referenced ASTM standards, visit the ASTM websi
13、te, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.4Withdrawn.5Available from Global Engineering Documents; 15 Inverness Way East,Englewood, CO 80112.6Av
14、ailable from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094 Attn: NPODS.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2 Manufacture:4.2.1 FormingUnless otherwise specified, t
15、he bolts andnuts shall be cold formed, hot formed, or machined fromsuitable material at the option of the manufacturer.4.2.2 ConditionThe fasteners shall be furnished in thefollowing conditions:Alloy Fastener Condition2024-T4 bolts solution treated and naturally aged6061-T6 nuts solution treated and
16、 artificially aged6262-T9 nuts solution treated, artificially aged, andcold worked4.2.3 ThreadsUnless otherwise specified, the threads shallbe rolled or cut at the option of the manufacturer.5. Chemical Composition5.1 Chemical Composition LimitsThe bolts and nuts shallconform to the requirements as
17、to chemical compositionprescribed in Table 2.5.2 Manufacturers AnalysisWhen test reports are re-quired on the inquiry or purchase order (see 3.1.7), themanufacturer shall furnish a certificate of conformance certi-fying compliance with the chemical limits specified in Table 2.5.3 Product Analysis:5.
18、3.1 Product analyses may be made by the purchaser fromfinished products representing each lot. The chemical compo-sition thus determined shall conform to the requirements inTable 2.5.3.2 In the event of disagreement, a referee chemicalanalysis shall be performed if agreed upon by both parties. Asamp
19、le as required by Table 3 shall be selected for each lot.Chemical analysis shall be performed to the requirements of13.1 and the result shall conform to Table 2.6. Mechanical Properties6.1 BoltsBolts having a length three times the diameter orlonger shall be tested full size as specified in 13.2.2.
20、At themanufacturers option, bolts of less than 3 diameters in lengthmay be tested in full size as specified in 13.2.2. Bolts subjectedto tension tests shall meet the tensile strength requirementsspecified in Table 1. Bolts of less than 3 diameters in length orfor other reasons cannot be tested full
21、size in tension, shall besubject to a shear test to be performed in accordance with12.2.1. The test results shall conform to the following mini-mum shear-strength requirements: 37 ksi (255 MPa) for2024-T4.6.2 NutsNuts shall be tested in accordance with themechanical requirements for the applicable t
22、ype and shall meetthe minimum proof-load requirements in Table 1.7. Significance of Numerical Limits7.1 For purposes of determining compliance with the speci-fied limits for requirements of the properties listed in thisspecification, an observed value or calculated value shall berounded in accordanc
23、e with Practice E29.8. Dimensions8.1 Bolts and Nuts:8.1.1 BoltsBolts shall be full-size body in accordancewith the requirements of AMSE B18.2.1, except the full-bodylength listed in Table 4 shall be the basis of manufacture andinspection. Unless otherwise specified, hex bolts shall befurnished. The
24、ends of the bolts need not be chamfered orpointed.8.1.2 NutsThe dimensions of the nuts shall be in accor-dance with the requirements of ASME B 18.2.2. Unlessotherwise specified, nuts are to be either the regular hex seriesor a recessed hex series that allows penetration of the boltthreads into the n
25、ut recess area.8.2 Threads:TABLE 1 Tensile Strength of 2024-T4 Bolts and Proof Loads for6061-T6 and 6262-T9 NutsABolt Size, in. Tensile Strength, min, lbf (kN)58 12 400 (55)34 18 400 (82)78 25 400 (113)ABased on a tensile unit stress of 55 000 psi (380 MPa) and the thread stressarea calculated as fo
26、llows:As5 0.7854 D 2 0.9743/n!#2where:As= stress area,D = nominal diameter, andn = threads/in.TABLE 2 Chemical RequirementsA,BUNSDesignationNumberAlloy General Name AluminumCChromium Copper Iron Manganese Silicon Titanium Zinc MagnesiumOther ElementsEach TotalA92024 2024 Aluminum 2024 Balance 0.10 3
27、.84.9 0.50 0.300.9 0.50 0.15 0.25 1.21.8 0.05 0.15A96061 6061 Aluminum 6061 Balance 0.040.35 0.150.40 0.7 0.15 0.400.8 0.15 0.25 0.81.2 0.05 0.15A96262 6262 Aluminum 6262 Balance 0.040.14 0.150.40 0.7 0.15 0.400.8 0.15 0.25 0.81.2 0.05D0.15ALimits are in percent, maximum, unless shown as a range or
28、stated otherwise.BAnalysis shall regularly be made only for the elements specified in this table. If, however, the presence of other elements is suspected or indicated in amounts greaterthan the specified limits, further analysis shall be made to determine that these elements are not present in exce
29、ss of the specified limits.CBalance shall be arithmetically computed by deducting the sum of the other named elements from 100.DLead 0.40.7 %; bismuth 0.4-0.7 %.TABLE 3 Sample Size and Acceptance for Mechanical PropertyTestsNumber of Pieces in LotAcceptance CriteriaNumber ofTestsAcceptanceNumberReje
30、ctionNumber50 and under 2 0 151 to 500 3 0 1501 to 35 000 5 0 135 001 to 100 000 8 0 1F 901 01 (2007)28.2.1 BoltsUnless otherwise specified, the bolts shall beClass 2A threads in accordance with ASME B1.1.8.2.2 NutsUnless otherwise specified, the nuts shall beClass 2B threads in accordance with ASME
31、 B1.1.9. Workmanship, Finish, and Appearance9.1 WorkmanshipBolts and nuts shall have a workmanlikefinish free of injurious burrs, seams, laps, irregular surfaces,and other imperfections affecting serviceability.9.2 Finish:9.2.1 BoltsUnless otherwise specified, bolts shall be fur-nished anodized per
32、MIL-STD-A-8625, Type II, Class 2 andcolor coded for length as indicated in Table 4.9.2.2 NutsUnless otherwise specified, nuts shall be fur-nished waxed.10. Sampling10.1 Alot, for the purposes of selecting test specimens, shallconsist of no more than 100 000 pieces offered for inspectionat one time h
33、aving the following common characteristics:10.1.1 One type of item (that is, bolts or nuts),10.1.2 Same alloy and temper,10.1.3 One nominal diameter and thread series, and10.1.4 One nominal length or thickness.11. Number of Tests and Retests11.1 TestsThe requirements of this specification shall beme
34、t in continuous mass production for stock. The manufacturershall make sample inspections, as specified in Table 3,toensure that the product conforms to the specified requirements.When tests of individual shipments are required, Supplemen-tary Requirement S1 must be specified.11.2 Retests:11.2.1 When
35、 tested in accordance with the required sam-pling plan, a lot shall be subject to rejection if any of the testspecimens fails to meet the applicable test requirement.11.2.2 If the failure of a test specimen is due to improperpreparation of the specimen or to incorrect testing technique,the specimen
36、shall be discarded and another specimen substi-tuted.12. Specimen Preparation12.1 Chemical TestsWhen required, samples for chemicalanalysis shall be taken in accordance with Practice E55bydrilling, sawing, milling, turning, clipping, or other suchmethods capable of producing representative samples.1
37、2.2 Mechanical Tests:12.2.1 BoltsMachined shear test specimens, when re-quired, shall be taken in accordance with Test Method B 565.12.2.2 NutsNuts shall be tested in full section.13. Test Methods13.1 Chemical AnalysisThe chemical composition maybe determined by any recognized commercial test method
38、. Inthe event of disagreement, the following test methods shall beused for referee purposes: E34, E 101,orE 227.13.2 Mechanical:13.2.1 Tests shall be conducted in accordance with TestMethods B 565 and F 606.13.2.2 Bolts that can be tested full size shall be tested usingthe wedge tension test specifi
39、ed in Test Methods F 606.Fracture shall be in the body or threaded portion of the boltwithout any failure at the junction of the head and body.13.2.3 When machined specimens for shear tests are neces-sary (see Section 6), determine the shear strength on eachsample in accordance with Test Method B 56
40、5.13.2.4 Nuts shall be proof-load or proof-stress tested asspecified in Test Methods F 606.14. Inspection14.1 When specified on the inquiry or purchase order, theproduct shall be subject to inspection by the purchaser at theplace of manufacture prior to shipment. The inspector repre-senting the purc
41、haser shall have controlled entry only to thoseparts of the manufacturers operations that concern the manu-facturer of the ordered product and only when and where workon the contract of the purchaser is being performed. Themanufacturer shall afford the inspector all reasonable facilitiesto satisfy t
42、hat the product is being furnished in accordance withthis specification. All inspections and tests shall be conductedso as not to interfere unnecessarily with the operations of themanufacturer.15. Rejection and Rehearing15.1 Unless otherwise specified, any rejection based on testsspecified herein an
43、d made by the purchaser shall be reported tothe manufacturer as soon as is practical after receipt of theproduct by the purchaser.16. Certification and Test Reports16.1 Certificate of ComplianceWhen specified in thecontract or purchase order, the manufacturer shall furnishcertification that the prod
44、uct was manufactured and tested inaccordance with this specification and conforms to all specifiedrequirements.TABLE 4 Length of Full Body for BoltsALength ofBolt, in.ColorCodeBolt Diameter, in.5834781 Red . . .316 .114 Blue116316 .112 Gold1414 .134 Green12127162 Red34341116214 Blue 1 11516212 Gold
45、114 114 1316234 Green 112 112 17163 Red 134 134 11116314 Blue 2 2 11516312 Gold 214 214 2316334 Green 212 212 27164 Red 234 234 21116AThe length of full body is the distance from the underside of the head to the firstscratch of thread on bolts with machine-cut threads, or top of the extrusion anglef
46、or bolts with rolled threads with a tolerance of 6132 in. for58- and34-in. size bolts,and 6116 in. for78-in. size bolts.F 901 01 (2007)316.2 Test ReportsWhen shipment lot testing in accor-dance with Supplementary Requirement S1 is specified in thecontract or purchase order, the manufacturer shall fu
47、rnish a testreport showing the results of the mechanical tests for each lotshipped.17. Product Marking, Packaging, and Shipping17.1 Bolt heads shall be marked to identify the manufac-turer. The manufacturer may use additional markings for hisown use. Markings shall be raised or depressed, at the opt
48、ionof the manufacturer. Nuts are not required to be marked.17.2 Bolts and nuts shall be shipped assembled unlessotherwise specified.17.3 Packaging:17.3.1 Unless otherwise specified packaging shall be inaccordance with Practice D 3951.17.3.2 When special packaging requirements are requiredby the purc
49、haser, they shall be defined at the time of inquiryand order.17.4 Package Marking:Each shipping unit shall include or be plainly marked withthe following:17.4.1 ASTM specification,17.4.2 Alloy condition,17.4.3 Alloy number,17.4.4 Size,17.4.5 Name and brand or trademark of the manufacturer,17.4.6 Country of origin,17.4.7 Number of pieces, and17.4.8 Purchase order number.SUPPLEMENTARY REQUIREMENTSOne or more of the following supplementary requirements shall apply only when specified by thep
