1、Designation:A50203(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 in paren
2、theses 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 from12to 112in.inclusive,for structural fabricatingpurposes.The grades are as follows:G
3、radeDescription1Carbon steel rivets for general purpose use2Carbon manganese steel rivets for use with high strength carbonand high strength low alloy structural steels3Weathering steel rivets1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are
4、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 PackagingF606/F606M Test Methods for D
5、etermining the MechanicalPropertiesofExternallyandInternally ThreadedFasteners,Washers,Direct Tension Indicators,and RivetsF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionG101 Guide for Estimating the Atmospheric Corrosion Re-sistance of Low-Alloy
6、Steels2.2 ASME Standard:B 18.1.2Large Rivets(12Inch 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 Dimensions including nominal diameter and leng
7、th,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.Example10 000 pieces,Steel Button Head Rivets,12 1 in.
8、,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.It is expected that these rivets ordinarily willbe hot
9、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 Table 1.The selection of the composition,A or B,shall beat
10、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 added shallnot be permitted.Compliance with this requirement shall
11、 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 Table 1,as applicable.Product Analysis is notapplicable to Grad
12、e 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 and is the direct responsibility of Subcommittee F16.02 on Steel
13、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,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serv
14、iceastm.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,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.Copyright ASTM Inter
15、national,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 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
16、 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 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 ordinarilycontemp
