1、Designation: A 502 03Standard Specification forRivets, Steel, Structural1This standard is issued under the fixed designation A 502; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、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 three grades of steel rivets indiameters from12 to 112 in. inclusive, for structural fabricatingpurposes. The grades are as follow
3、s:Grade Description1 Carbon steel rivets for general purpose use2 Carbon manganese steel rivets for use with high strength carbonand high strength low alloy structural steels3 Weathering steel rivets1.2 The values stated in inch-pound units are to be regardedas the standard.2. Referenced Documents2.
4、1 ASTM Standards:A 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel Products2D 3951 Practice for Commercial Packaging3F 606 Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers, and Rivets4F 1470 Guide for Fastener
5、Sampling for Specified Mechani-cal Properties and Performance Inspection4G 101 Guide for Estimating the Atmospheric CorrosionResistance of Low-Alloy Steels52.2 ASME Standard:B 18.1.2 Large Rivets (12 Inch Nominal Diameter andLarger)63. Ordering Information3.1 Orders for rivets under this specificati
6、on shall include:3.1.1 Quantity (number of pieces of rivets),3.1.2 Name of product, including head type,3.1.3 Dimensions including nominal diameter and length,3.1.4 Supplementary Requirement S1, if required (see8.1.2),3.1.5 Test report, if required (see 14.1),3.1.6 Additional package marking, if req
7、uired (see 17.2),3.1.7 ASTM designation, including grade and date of issue,and3.1.8 Any special requirements.Example10 000 pieces, Steel Button Head Rivets,123 1 in., Test Report Required, ASTM A 502, Grade 1,dated_ .4. Materials and Manufacture4.1 ProcessThe steel for rivets shall be made by theope
8、n-hearth, basic-oxygen, or electric-furnace process.4.2 HeadingRivets shall be made by the hot or coldheading process. It is expected that these rivets ordinarily willbe hot driven.5. Chemical Composition5.1 Grade 1 and Grade 2 rivets shall conform to the heatanalysis requirements given in Table 1.5
9、.2 Grade 3 rivets shall be weathering steel and shallconform to Class A or Class B chemical composition specifiedin Table 1. The selection of the composition, A or B, shall beat the option of the rivet manufacturer. See Guide G 101 formethods of estimating the atmospheric corrosion resistance oflow
10、alloy steels.5.3 Application of heats of steel to which bismuth, sele-nium, tellurium, or lead has been intentionally added shall notbe permitted. Compliance with this requirement shall be basedon a statement on the steel certificate indicating that theseelements were not intentionally added.5.4 Pro
11、duct analysis made on finished rivets representingeach lot shall conform to the product analysis requirementsspecified in Table 1, as applicable. Product Analysis is notapplicable to Grade 1 rivets made from rimmed steel ormerchant quality bars.6. Mechanical Properties6.1 The rivets shall conform to
12、 the hardness requirementsshown in Table 2.1This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts, Rivets, and Washers.Current edition approved July 10, 2003. Published July 2003.2Annual Book of ASTM
13、 Standards, Vol 01.01 through 01.05.3Annual Book of ASTM Standards, Vol 15.09.4Annual Book of ASTM Standards, Vol 01.08.5Annual Book of ASTM Standards, Vol 03.02.6Available from ASME International, Information Central, 22 Law Drive, POBox 2300, Fairfield, NJ 07007-2300.1Copyright ASTM International,
14、 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.2 Brinell hardness shall be measured at only one point.Rockwell hardness shall be measured at three points, equallyspaced about the axis of the rivet, and the hardness shall betaken as the arithmetic average of th
15、e three measurements.7. Dimensions7.1 Dimensions of rivets, unless otherwise specified, shallconform to those of one of the head types provided in ASMEB 18.1.2.8. Number of Tests and Retests8.1 Hardness:8.1.1 The requirements of this specification shall be met incontinuous mass production for stock,
16、 and the manufacturershall make sample inspections to ensure that the productconforms to the specified hardness requirements. Additionaltests of individual shipments of material are not ordinarilycontemplated. Individual heats of steel are not necessarilyidentified in the finished product.8.1.2 Addi
17、tional hardness tests of individual shipments ofrivets are not ordinarily required. When required, Supplemen-tary Requirement S1 shall be specified.8.2 Head Bursts and Duds:8.2.1 From each lot, the number of tests and the acceptance/rejection criteria for cracks (bursts) and duds shall be inaccordan
18、ce with Guide F 1470 using the sampling level char-acteristic specified for Surface Discontinuities.9. Specimen Preparation9.1 Rivets used for testing shall be heat treated in thefollowing manner prior to testing:9.1.1 Grade 1Normalize by air cooling from above thetransformation range.9.1.2 Grade 2A
19、nneal by heating to 1450F (790C),holding for 30 min at temperature and cooling in the furnace.9.1.3 Grade 3Normalizing test samples shall be at theoption of the manufacturer.9.2 If any test specimen shows defective preparation, it shallbe discarded and another specimen substituted.10. Visual Inspect
20、ion for Head Bursts and Duds10.1 The rivets shall be inspected for cracks (bursts) andduds. Sampling and inspection shall be in accordance with 8.2.Rivets having an opening at the periphery of the head widerthan 0.020 inch plus 0.05 times the rivet diameter shall beconsidered nonconforming (see Note
21、 1).NOTE 1Crack and burst are two names for the same thing. Eachdesignates an abrupt interruption of the periphery of a rivet head byseparation of the metal. Such interruptions do not adversely affectstructural strength, corrosion resistance, or other functional requirementsof the rivet, but are uns
22、ightly if they are large.11. Test Methods11.1 Hardness tests shall be conducted in accordance withTest Methods F 606.11.2 Chemical analyses shall be conducted in accordancewith Test Methods A 751.12. Inspection12.1 If the inspection described in 12.2 is required by thepurchaser, it shall be specifie
23、d in the inquiry and contract ororder.12.2 The purchasers representative shall have free entry toall parts of the manufacturers works or suppliers place ofbusiness that concern the manufacture or supply of the rivetsordered. The manufacturer or supplier shall afford the purchas-ers representative al
24、l reasonable facilities to satisfy him thatthe material is being furnished in accordance with this speci-fication. All tests and inspections required by the specificationthat are requested by the purchasers representative shall bemade before shipment, and shall be conducted as not toTABLE 1 Chemical
25、 RequirementsGrade 1 Grade 2 Grade 3A,BHeatAnalysis, %ProductAnalysis,C%HeatAnalysis, %ProductAnalysis, %Class A Class BHeatAnalysis, %ProductAnalysis, %HeatAnalysis, %ProductAnalysis, %Carbon 0.130.25 0.110.27 0.190.30 0.160.33 0.100.19 0.090.20 0.20 max 0.21 maxManganese 0.300.90 0.270.93 1.201.65
26、 1.141.71 0.901.25 0.861.29 0.751.25 0.711.29Phosphorus, maxacid 0.06 0.070 0.06 0.070 . . . . . . . . . . . .basic 0.04 0.048 0.04 0.048 0.04 0.045 0.04 0.045Sulfur, max 0.05 0.058 0.05 0.058 0.05 0.055 0.05 0.055Silicon . . . . . . 0.100.35 0.080.37 0.150.35 0.130.37 0.150.35 0.130.37Nickel . . .
27、. . . . . . . . . . . . . . . 0.250.50 0.220.53Chromium . . . . . . . . . . . . 0.400.65 0.370.68 0.400.70 0.370.73Copper . . . . . . . . . . . . 0.250.40 0.220.43 0.200.40 0.170.43Copper, when copper bearingsteel is specified, min0.20 0.18 0.20 0.18 . . . . . . . . . . . .Vanadium . . . . . . . . .
28、 . . . 0.020.10 0.010.11 0.010.10 0.11 maxAA and B are classes of material used for Grade 3 rivets. Selection of a class shall be at the option of the rivet manufacturer.BSee 5.2.CProduct analysis is not applicable to rivets made from rimmed steel or merchant quality bars.TABLE 2 Hardness Requiremen
29、tsGrade 1 Grade 2 Grade 3Min Max Min Max Min MaxRockwell, B 55 72 76 85 76 93Brinell, 500-kgf (4900-N),10-mm ball103 126 137 163 137 197A502032interfere unnecessarily with the operation of the manufactur-ers works or suppliers place of business.13. Rejection and Rehearing13.1 Disposition of nonconfo
30、rming rivets shall be in accor-dance with the Guide F 1470 section entitled “Disposition ofNonconforming Lots.”14. Certification14.1 Upon request of the purchaser in the contract or order,a manufacturers certification that the rivets were manufacturedand tested in accordance with this specification,
31、 together witha report of the latest hardness tests of each stock size in eachshipment, shall be furnished at the time of shipment.14.2 When Supplementary Requirement S1 has been speci-fied, and when specified on the purchase order, the manufac-turer or supplier, whichever is the responsible party a
32、s definedin Section 15, shall furnish the purchaser a test report(s) thatincludes the following:14.2.1 Heat analysis, heat number, and a statement certify-ing heats having the elements listed in 5.3 intentionally addedwere not used to produce the rivets,14.2.2 Results of hardness tests,14.2.3 Result
33、s of visual inspection for head bursts and duds,14.2.4 Statement of compliance with dimensional require-ments,14.2.5 Lot number and purchase order number,14.2.6 Complete mailing address of responsible party, and14.2.7 Title and signature of the individual assigned certi-fication responsibility by th
34、e company officers;14.2.8 Failure to include all the required information on thetest report shall be cause for rejection.15. Responsibility15.1 The party responsible for the fastener shall be theorganization that supplies the fastener to the purchaser andcertifies that the fastener was manufactured,
35、 sampled, testedand inspected in accordance with this specification and meetsall of its requirements.16. Product Marking16.1 All rivets shall be marked with a symbol to identify themanufacturer or private label distributor, as appropriate.16.2 In addition, the rivets shall be marked as follows toide
36、ntify the grade.Grade Grade Marking1 none requiredA2233AThe numeral 1 shall be used at the manufacturers option.16.3 The marking shall appear on the rivet head and shall beraised or depressed at the manufacturers option.16.4 Grade and manufacturers or private label distributorsidentification shall b
37、e separate and distinct. The two identifi-cations shall preferably be in different locations and, when onthe same level, shall be separated by at least two spaces.17. Packaging and Package Marking17.1 Packaging:17.1.1 Unless otherwise specified, packaging shall be inaccordance with Practice D 3951.1
38、7.1.2 When special packaging requirements are required,they shall be defined at the time of the inquiry and order.17.2 Package Marking:17.2.1 Each shipping unit shall include or be plainly markedwith the following information:17.2.1.1 ASTM designation and grade,17.2.1.2 Size,17.2.1.3 Name and brand
39、or trademark of the manufacturer,17.2.1.4 Number of pieces,17.2.1.5 Purchase order number, and17.2.1.6 Country of origin.18. Keywords18.1 carbon steel; rivets; steel; structural; weathering steelSUPPLEMENTARY REQUIREMENTSThe following supplementary requirement shall apply only when specified in the
40、purchase order orcontract.S1. Additional Hardness Tests on Individual ShipmentsS1.1 When additional hardness tests on individual ship-ments are required, sampling and acceptance/rejection criteriashall be in accordance with Guide F 1470.A502033ASTM International takes no position respecting the vali
41、dity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subj
42、ect to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquar
43、ters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standar
44、d is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).A502034
