1、Designation: F901 01 (Reapproved 2012)Standard Specification forAluminum Transmission Tower Bolts and Nuts1This standard is issued under the fixed designation F901; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () 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, subs
3、tations, 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 inform
4、ation onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2B565 Test Method for Shear Testing of Aluminum andAluminum-Alloy Rivets and Cold-Heading Wire and RodsD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conform
5、ance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE101 Test Method for Spectrographic Analysis of Alumi-num and Aluminum Alloys by the Point-to-Plane
6、 Tech-nique3E227 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique3F606 Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers, Direct Tension Indicators, and RivetsF1470 Prac
7、tice for Fastener Sampling for Specified Me-chanical Properties and Performance Inspection2.2 ASME Standards:4B1.1 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 Anodic Co
8、atings forAluminum andAlu-minum Alloys53. 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 Shipment
9、 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, 8.2.2,
10、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 F901XX.4. Materials and
11、 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 ASTM Com
12、mittee F16 onFasteners and is the direct responsibility of Subcommittee F16.04 on NonferrousFasteners.Current edition approved April 1, 2012. Published May 2012. Originallyapproved in 1984. Last previous edition approved in 2007 as F901 01(2007). DOI:10.1520/F0901-01R12.2For referenced ASTM standard
13、s, visit the ASTM website, 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. The last approved version of this historical standard is referencedon www.astm
14、.org.4Available from IHS, 15 Inverness Way East, Englewood, CO 80112, http:/.5Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, We
15、st Conshohocken, PA 19428-2959, United States.4.2 Manufacture:4.2.1 FormingUnless otherwise specified, the 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:Al
16、loy Fastener Condition2024-T4 bolts solution treated and naturally aged6061-T6 nuts solution treated and 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. Ch
17、emical Composition5.1 Chemical Composition LimitsThe bolts and nuts shallconform to the requirements as 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
18、conformance certi-fying compliance with the chemical limits specified in Table 2.5.3 Product Analysis:5.3.1 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 ev
19、ent of disagreement, a referee chemicalanalysis shall be performed if agreed upon by both parties. Asample 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 BoltsBo
20、lts having a length three times the diameter orlonger shall be tested full size as specified in 13.2.2. 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 requirementss
21、pecified in Table 1. Bolts of less than 3 diameters in length orfor other reasons cannot be tested full 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) fo
22、r2024-T4.6.2 NutsNuts shall be tested in accordance with themechanical requirements for the applicable type 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 pr
23、operties listed in thisspecification, an observed value or calculated value shall berounded in accordance 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
24、be the basis of manufacture andinspection. Unless otherwise specified, hex bolts shall befurnished. The 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 eit
25、her the regular hex seriesor a recessed hex series that allows penetration of the boltthreads into the nut 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
26、 (113)ABased on a tensile unit stress of 55 000 psi (380 MPa) and the thread stressarea calculated as follows: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 M
27、anganese Silicon Titanium Zinc MagnesiumOther ElementsEach TotalA92024 2024 Aluminum 2024 Balance 0.10 3.84.9 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
28、 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 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 s
29、pecified limits, further analysis shall be made to determine that these elements are not present in excess 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
30、for Mechanical PropertyTestsNumber of Pieces in LotAcceptance CriteriaNumber ofTestsAcceptanceNumberRejectionNumber50 and under 2 0 151 to 500 3 0 1501 to 35 000 5 0 135 001 to 100 000 8 0 1F901 01 (2012)28.2.1 BoltsUnless otherwise specified, the bolts shall beClass 2A threads in accordance with AS
31、ME B1.1.8.2.2 NutsUnless otherwise specified, the nuts shall beClass 2B threads in accordance with ASME 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 s
32、erviceability.9.2 Finish:9.2.1 BoltsUnless otherwise specified, bolts shall be fur-nished anodized per 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 se
33、lecting test specimens, shallconsist of no more than 100 000 pieces offered for inspectionat one time having 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
34、or thickness.11. Number of Tests and Retests11.1 TestsThe requirements of this specification shall bemet 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 indi
35、vidual shipments are required, Supplemen-tary Requirement S1 must be specified.11.2 Retests:11.2.1 When 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
36、 specimen is due to improperpreparation of the specimen or to incorrect testing technique,the specimen 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 E55 bydrilling
37、, sawing, milling, turning, clipping, or other suchmethods capable of producing representative samples.12.2 Mechanical Tests:12.2.1 BoltsMachined shear test specimens, when re-quired, shall be taken in accordance with Test Method B565.12.2.2 NutsNuts shall be tested in full section.13. Test Methods1
38、3.1 Chemical AnalysisThe chemical composition maybe determined by any recognized commercial test method. Inthe event of disagreement, the following test methods shall beused for referee purposes: E34, E101,orE227.13.2 Mechanical:13.2.1 Tests shall be conducted in accordance with TestMethods B565 and
39、 F606.13.2.2 Bolts that can be tested full size shall be tested usingthe wedge tension test specified in Test Methods F606. Fractureshall be in the body or threaded portion of the bolt without anyfailure at the junction of the head and body.13.2.3 When machined specimens for shear tests are neces-sa
40、ry (see Section 6), determine the shear strength on eachsample in accordance with Test Method B565.13.2.4 Nuts shall be proof-load or proof-stress tested asspecified in Test Methods F606.14. Inspection14.1 When specified on the inquiry or purchase order, theproduct shall be subject to inspection by
41、the purchaser at theplace of manufacture prior to shipment. The inspector repre-senting the purchaser 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 b
42、eing performed. Themanufacturer shall afford the inspector all reasonable facilitiesto satisfy that 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. Rejecti
43、on and Rehearing15.1 Unless otherwise specified, any rejection based on testsspecified herein and 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 speci
44、fied in thecontract or purchase order, the manufacturer shall furnishcertification that the product 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 Re
45、d . . .316 .114 Blue116316 .112 Gold1414 .134 Green12127162 Red34341116214 Blue 1 11516212 Gold 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
46、 to the firstscratch of thread on bolts with machine-cut threads, or top of the extrusion anglefor bolts with rolled threads with a tolerance of 6132 in. for58- and34-in. size bolts,and 6116 in. for78-in. size bolts.F901 01 (2012)316.2 Test ReportsWhen shipment lot testing in accor-dance with Supple
47、mentary Requirement S1 is specified in thecontract or purchase order, the manufacturer shall furnish 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 manufacture
48、r may use additional markings for hisown use. Markings shall be raised or depressed, at the optionof 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 inacc
49、ordance with Practice D3951.17.3.2 When special packaging requirements are requiredby the purchaser, 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.SUPPLE
