1、Designation: A502 03 (Reapproved 2015)Standard Specification forRivets, Steel, Structural1This standard is issued under the fixed designation A502; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 grade
3、s are as follows: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 standard. The values gi
4、ven in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2A751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsD3951 Practice for Commercial PackagingF60
5、6/F606M Test Methods for Determining the MechanicalProperties of Externally and Internally ThreadedFasteners, Washers, Direct Tension Indicators, and RivetsF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionG101 Guide for Estimating the Atmospheric Co
6、rrosion Re-sistance of Low-Alloy Steels2.2 ASME Standard:B 18.1.2 Large Rivets (12 Inch Nominal Diameter andLarger)33. Ordering Information3.1 Orders for rivets under this specification shall include:3.1.1 Quantity (number of pieces of rivets),3.1.2 Name of product, including head type,3.1.3 Dimensi
7、ons 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 required (see 17.2),3.1.7 ASTM designation, including grade and date of issue,and3.1.8 Any special requirements.Example1
8、0 000 pieces, Steel Button Head Rivets,12 1 in., Test Report Required, ASTM A502, Grade 1,dated_ .4. Materials and Manufacture4.1 ProcessThe steel for rivets shall be made by theopen-hearth, basic-oxygen, or electric-furnace process.4.2 HeadingRivets shall be made by the hot or coldheading process.
9、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 1.5.2 Grade 3 rivets shall be weathering steel and shallconform to Class A or Class B chemical composition specifiedin Tab
10、le 1. The selection of the composition, A or B, shall beat the option of the rivet manufacturer. See Guide G101 formethods of estimating the atmospheric corrosion resistance oflow alloy steels.5.3 Application of heats of steel to which bismuth,selenium, tellurium, or lead has been intentionally adde
11、d shallnot be permitted. Compliance with this requirement shall bebased on a statement on the steel certificate indicating thatthese elements were not intentionally added.5.4 Product analysis made on finished rivets representingeach lot shall conform to the product analysis requirementsspecified in
12、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 the hardness requirementsshown in Table 2.1This specification is under the jurisdiction of ASTM Committee F16 onFasteners
13、 and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts, Rivets and Washers.Current edition approved May 1, 2015. Published August 2015. Originallyapproved in 1964. Last previous edition approved in 2009 as A50203(2009). DOI:10.1520/A0502-03R15.2For referenced ASTM standards, vi
14、sit 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.3Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters
15、, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.2 Brinell hardness shall be measured at only one point.Rockwell hardness shall be measured at three points, equallyspaced
16、 about the axis of the rivet, and the hardness shall betaken as the arithmetic average of the 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
17、 The requirements of this specification shall be met incontinuous mass production for stock, 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
18、. Individual heats of steel are not necessarilyidentified in the finished product.8.1.2 Additional 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
19、tests and the acceptance/rejection criteria for cracks (bursts) and duds shall be inaccordance with Practice F1470 using the sampling levelcharacteristic specified for Surface Discontinuities.9. Specimen Preparation9.1 Rivets used for testing shall be heat treated in thefollowing manner prior to tes
20、ting:9.1.1 Grade 1Normalize by air cooling from above thetransformation range.9.1.2 Grade 2Anneal 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 def
21、ective preparation, it shallbe discarded and another specimen substituted.10. Visual Inspection 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 widert
22、han 0.020 inch plus 0.05 times the rivet diameter shall beconsidered nonconforming (see Note 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 affectstructur
23、al strength, corrosion resistance, or other functional requirementsof the rivet, but are unsightly if they are large.11. Test Methods11.1 Hardness tests shall be conducted in accordance withTest Methods F606/F606M.11.2 Chemical analyses shall be conducted in accordancewith Test Methods A751.12. Insp
24、ection12.1 If the inspection described in 12.2 is required by thepurchaser, it shall be specified 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 o
25、f the rivetsordered. The manufacturer or supplier shall afford the purchas-ers representative all 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 purchase
26、rs representative shall beTABLE 1 Chemical 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.
27、21 maxManganese 0.300.90 0.270.93 1.201.65 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.
28、35 0.130.37 0.150.35 0.130.37Nickel . . . . . . . . . . . . . . . . . . 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 . . . .
29、 . . . . . . . .Vanadium . . . . . . . . . . . . 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 merchan
30、t quality bars.TABLE 2 Hardness RequirementsGrade 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 197A502 03 (2015)2made before shipment, and shall be conducted as not tointerfere unnecessarily with the operation of the man
31、ufactur-ers works or suppliers place of business.13. Rejection and Rehearing13.1 Disposition of nonconforming rivets shall be in accor-dance with the Practice F1470 section entitled “Disposition ofNonconforming Lots.”14. Certification14.1 Upon request of the purchaser in the contract or order,a manu
32、facturers certification that the rivets were manufacturedand tested in accordance with this specification, 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 beenspecified, and w
33、hen specified on the purchase order, themanufacturer or supplier, whichever is the responsible party asdefined in Section 15, shall furnish the purchaser a testreport(s) that includes the following:14.2.1 Heat analysis, heat number, and a statement certify-ing heats having the elements listed in 5.3
34、 intentionally addedwere not used to produce the rivets,14.2.2 Results of hardness tests,14.2.3 Results of visual inspection for head bursts and duds,14.2.4 Statement of compliance with dimensionalrequirements,14.2.5 Lot number and purchase order number,14.2.6 Complete mailing address of responsible
35、 party, and14.2.7 Title and signature of the individual assigned certi-fication responsibility by the 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 theorgan
36、ization that supplies the fastener to the purchaser andcertifies that the fastener was manufactured, 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 pri
37、vate label distributor, as appropriate.16.2 In addition, the rivets shall be marked as follows toidentify 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 m
38、anufacturers option.16.4 Grade and manufacturers or private label distributorsidentification shall be 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
39、 Packaging:17.1.1 Unless otherwise specified, packaging shall be inaccordance with Practice D3951.17.1.2 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 t
40、he following information:17.2.1.1 ASTM designation and grade,17.2.1.2 Size,17.2.1.3 Name and brand 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 steelSUPPL
41、EMENTARY REQUIREMENTSThe following supplementary requirement shall apply only when specified in the 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 criteriashal
42、l be in accordance with Practice F1470.A502 03 (2015)3ASTM International takes no position respecting the validity 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 r
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